chrome/browser/chrome_content_browser_client.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chrome_content_browser_client.h"
   6
   7 #include <map>
   8 #include <set>
   9 #include <utility>
  10 #include <vector>
  11
  12 #include "base/bind.h"
  13 #include "base/bind_helpers.h"
  14 #include "base/command_line.h"
  15 #include "base/files/scoped_file.h"
  16 #include "base/lazy_instance.h"
  17 #include "base/path_service.h"
  18 #include "base/prefs/pref_service.h"
  19 #include "base/prefs/scoped_user_pref_update.h"
  20 #include "base/strings/string_number_conversions.h"
  21 #include "base/strings/string_util.h"
  22 #include "base/strings/stringprintf.h"
  23 #include "base/strings/utf_string_conversions.h"
  24 #include "base/thread_task_runner_handle.h"
  25 #include "base/threading/sequenced_worker_pool.h"
  26 #include "chrome/browser/after_startup_task_utils.h"
  27 #include "chrome/browser/apps/app_url_redirector.h"
  28 #include "chrome/browser/browser_about_handler.h"
  29 #include "chrome/browser/browser_process.h"
  30 #include "chrome/browser/browser_shutdown.h"
  31 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  32 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  33 #include "chrome/browser/character_encoding.h"
  34 #include "chrome/browser/chrome_content_browser_client_parts.h"
  35 #include "chrome/browser/chrome_net_benchmarking_message_filter.h"
  36 #include "chrome/browser/chrome_quota_permission_context.h"
  37 #include "chrome/browser/content_settings/cookie_settings_factory.h"
  38 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
  39 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
  40 #include "chrome/browser/defaults.h"
  41 #include "chrome/browser/devtools/chrome_devtools_manager_delegate.h"
  42 #include "chrome/browser/download/download_prefs.h"
  43 #include "chrome/browser/font_family_cache.h"
  44 #include "chrome/browser/geolocation/chrome_access_token_store.h"
  45 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  46 #include "chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h"
  47 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  48 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
  49 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings_factory.h"
  50 #include "chrome/browser/notifications/platform_notification_service_impl.h"
  51 #include "chrome/browser/platform_util.h"
  52 #include "chrome/browser/prerender/prerender_final_status.h"
  53 #include "chrome/browser/prerender/prerender_manager.h"
  54 #include "chrome/browser/prerender/prerender_manager_factory.h"
  55 #include "chrome/browser/prerender/prerender_message_filter.h"
  56 #include "chrome/browser/printing/printing_message_filter.h"
  57 #include "chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.h"
  58 #include "chrome/browser/profiles/profile.h"
  59 #include "chrome/browser/profiles/profile_io_data.h"
  60 #include "chrome/browser/renderer_host/chrome_render_message_filter.h"
  61 #include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
  62 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
  63 #include "chrome/browser/safe_browsing/ui_manager.h"
  64 #include "chrome/browser/search/instant_service.h"
  65 #include "chrome/browser/search/instant_service_factory.h"
  66 #include "chrome/browser/search/search.h"
  67 #include "chrome/browser/search_engines/search_provider_install_state_message_filter.h"
  68 #include "chrome/browser/speech/chrome_speech_recognition_manager_delegate.h"
  69 #include "chrome/browser/speech/tts_controller.h"
  70 #include "chrome/browser/speech/tts_message_filter.h"
  71 #include "chrome/browser/ssl/ssl_add_certificate.h"
  72 #include "chrome/browser/ssl/ssl_blocking_page.h"
  73 #include "chrome/browser/ssl/ssl_cert_reporter.h"
  74 #include "chrome/browser/ssl/ssl_client_certificate_selector.h"
  75 #include "chrome/browser/ssl/ssl_error_handler.h"
  76 #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h"
  77 #include "chrome/browser/tab_contents/tab_util.h"
  78 #include "chrome/browser/tracing/chrome_tracing_delegate.h"
  79 #include "chrome/browser/ui/blocked_content/blocked_window_params.h"
  80 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
  81 #include "chrome/browser/ui/chrome_select_file_policy.h"
  82 #include "chrome/browser/ui/sync/sync_promo_ui.h"
  83 #include "chrome/browser/ui/tab_contents/chrome_web_contents_view_delegate.h"
  84 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  85 #include "chrome/common/channel_info.h"
  86 #include "chrome/common/chrome_constants.h"
  87 #include "chrome/common/chrome_paths.h"
  88 #include "chrome/common/chrome_switches.h"
  89 #include "chrome/common/env_vars.h"
  90 #include "chrome/common/logging_chrome.h"
  91 #include "chrome/common/pepper_permission_util.h"
  92 #include "chrome/common/pref_names.h"
  93 #include "chrome/common/render_messages.h"
  94 #include "chrome/common/url_constants.h"
  95 #include "chrome/grit/generated_resources.h"
  96 #include "chrome/installer/util/google_update_settings.h"
  97 #include "chromeos/chromeos_constants.h"
  98 #include "components/cdm/browser/cdm_message_filter_android.h"
  99 #include "components/cloud_devices/common/cloud_devices_switches.h"
 100 #include "components/content_settings/core/browser/content_settings_utils.h"
 101 #include "components/content_settings/core/browser/cookie_settings.h"
 102 #include "components/content_settings/core/browser/host_content_settings_map.h"
 103 #include "components/content_settings/core/common/content_settings.h"
 104 #include "components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.h"
 105 #include "components/dom_distiller/core/url_constants.h"
 106 #include "components/google/core/browser/google_util.h"
 107 #include "components/metrics/client_info.h"
 108 #include "components/net_log/chrome_net_log.h"
 109 #include "components/pref_registry/pref_registry_syncable.h"
 110 #include "components/rappor/rappor_utils.h"
 111 #include "components/signin/core/common/profile_management_switches.h"
 112 #include "components/translate/core/common/translate_switches.h"
 113 #include "components/url_formatter/url_fixer.h"
 114 #include "components/variations/variations_associated_data.h"
 115 #include "components/version_info/version_info.h"
 116 #include "content/public/browser/browser_child_process_host.h"
 117 #include "content/public/browser/browser_main_parts.h"
 118 #include "content/public/browser/browser_ppapi_host.h"
 119 #include "content/public/browser/browser_thread.h"
 120 #include "content/public/browser/browser_url_handler.h"
 121 #include "content/public/browser/child_process_data.h"
 122 #include "content/public/browser/child_process_security_policy.h"
 123 #include "content/public/browser/client_certificate_delegate.h"
 124 #include "content/public/browser/navigation_handle.h"
 125 #include "content/public/browser/navigation_throttle.h"
 126 #include "content/public/browser/render_frame_host.h"
 127 #include "content/public/browser/render_process_host.h"
 128 #include "content/public/browser/render_view_host.h"
 129 #include "content/public/browser/resource_context.h"
 130 #include "content/public/browser/site_instance.h"
 131 #include "content/public/browser/web_contents.h"
 132 #include "content/public/common/child_process_host.h"
 133 #include "content/public/common/content_descriptors.h"
 134 #include "content/public/common/sandbox_type.h"
 135 #include "content/public/common/service_registry.h"
 136 #include "content/public/common/url_utils.h"
 137 #include "content/public/common/web_preferences.h"
 138 #include "device/devices_app/public/cpp/constants.h"
 139 #include "device/devices_app/public/cpp/devices_app_factory.h"
 140 #include "gin/v8_initializer.h"
 141 #include "mojo/application/public/cpp/application_delegate.h"
 142 #include "net/base/mime_util.h"
 143 #include "net/cookies/canonical_cookie.h"
 144 #include "net/cookies/cookie_options.h"
 145 #include "net/ssl/ssl_cert_request_info.h"
 146 #include "ppapi/host/ppapi_host.h"
 147 #include "storage/browser/fileapi/external_mount_points.h"
 148 #include "ui/base/l10n/l10n_util.h"
 149 #include "ui/base/resource/resource_bundle.h"
 150 #include "ui/resources/grit/ui_resources.h"
 151
 152 #if defined(OS_WIN)
 153 #include "base/win/windows_version.h"
 154 #include "chrome/browser/chrome_browser_main_win.h"
 155 #include "sandbox/win/src/sandbox_policy.h"
 156 #elif defined(OS_MACOSX)
 157 #include "chrome/browser/chrome_browser_main_mac.h"
 158 #elif defined(OS_CHROMEOS)
 159 #include "chrome/browser/chromeos/attestation/platform_verification_impl.h"
 160 #include "chrome/browser/chromeos/chrome_browser_main_chromeos.h"
 161 #include "chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.h"
 162 #include "chrome/browser/chromeos/file_manager/app_id.h"
 163 #include "chrome/browser/chromeos/file_system_provider/fileapi/backend_delegate.h"
 164 #include "chrome/browser/chromeos/fileapi/file_system_backend.h"
 165 #include "chrome/browser/chromeos/fileapi/mtp_file_system_backend_delegate.h"
 166 #include "chrome/browser/chromeos/login/startup_utils.h"
 167 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
 168 #include "chrome/browser/chromeos/system/input_device_settings.h"
 169 #include "chromeos/chromeos_switches.h"
 170 #include "components/user_manager/user_manager.h"
 171 #elif defined(OS_LINUX)
 172 #include "chrome/browser/chrome_browser_main_linux.h"
 173 #elif defined(OS_ANDROID)
 174 #include "chrome/browser/android/new_tab_page_url_handler.h"
 175 #include "chrome/browser/android/webapps/single_tab_mode_tab_helper.h"
 176 #include "chrome/browser/chrome_browser_main_android.h"
 177 #include "chrome/common/descriptors_android.h"
 178 #include "components/crash/content/browser/crash_dump_manager_android.h"
 179 #include "components/navigation_interception/intercept_navigation_delegate.h"
 180 #include "components/service_tab_launcher/browser/android/service_tab_launcher.h"
 181 #include "ui/base/resource/resource_bundle_android.h"
 182 #elif defined(OS_POSIX)
 183 #include "chrome/browser/chrome_browser_main_posix.h"
 184 #endif
 185
 186 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 187 #include "base/debug/leak_annotations.h"
 188 #include "components/crash/content/app/breakpad_linux.h"
 189 #include "components/crash/content/browser/crash_handler_host_linux.h"
 190 #endif
 191
 192 #if defined(OS_ANDROID)
 193 #include "ui/base/ui_base_paths.h"
 194 #include "ui/gfx/android/device_display_info.h"
 195 #endif
 196
 197 #if defined(TOOLKIT_VIEWS)
 198 #include "chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h"
 199 #endif
 200
 201 #if defined(USE_ASH)
 202 #include "chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h"
 203 #endif
 204
 205 #if defined(USE_AURA)
 206 #include "chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.h"
 207 #endif
 208
 209 #if defined(USE_X11)
 210 #include "chrome/browser/chrome_browser_main_extra_parts_x11.h"
 211 #endif
 212
 213 #if defined(ENABLE_CAPTIVE_PORTAL_DETECTION)
 214 #include "chrome/browser/captive_portal/captive_portal_tab_helper.h"
 215 #endif
 216
 217 #if !defined(DISABLE_NACL)
 218 #include "components/nacl/browser/nacl_browser.h"
 219 #include "components/nacl/browser/nacl_host_message_filter.h"
 220 #include "components/nacl/browser/nacl_process_host.h"
 221 #include "components/nacl/common/nacl_process_type.h"
 222 #include "components/nacl/common/nacl_switches.h"
 223 #endif
 224
 225 #if defined(ENABLE_EXTENSIONS)
 226 #include "chrome/browser/accessibility/animation_policy_prefs.h"
 227 #include "chrome/browser/extensions/chrome_content_browser_client_extensions_part.h"
 228 #include "chrome/browser/media/cast_transport_host_filter.h"
 229 #include "chrome/browser/speech/extension_api/tts_engine_extension_api.h"
 230 #include "components/guest_view/browser/guest_view_base.h"
 231 #include "components/guest_view/browser/guest_view_manager.h"
 232 #include "extensions/browser/extension_registry.h"
 233 #include "extensions/browser/extension_util.h"
 234 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 235 #include "extensions/browser/guest_view/web_view/web_view_permission_helper.h"
 236 #include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
 237 #include "extensions/common/constants.h"
 238 #include "extensions/common/extension.h"
 239 #include "extensions/common/extension_set.h"
 240 #include "extensions/common/manifest_handlers/background_info.h"
 241 #include "extensions/common/manifest_handlers/shared_module_info.h"
 242 #include "extensions/common/permissions/permissions_data.h"
 243 #include "extensions/common/permissions/socket_permission.h"
 244 #include "extensions/common/switches.h"
 245 #endif
 246
 247 #if defined(ENABLE_PLUGINS)
 248 #include "chrome/browser/plugins/chrome_content_browser_client_plugins_part.h"
 249 #endif
 250
 251 #if defined(ENABLE_SPELLCHECK)
 252 #include "chrome/browser/spellchecker/spellcheck_message_filter.h"
 253 #endif
 254
 255 #if defined(USE_BROWSER_SPELLCHECKER)
 256 #include "chrome/browser/spellchecker/spellcheck_message_filter_platform.h"
 257 #endif
 258
 259 #if defined(ENABLE_WEBRTC)
 260 #include "chrome/browser/media/webrtc_logging_handler_host.h"
 261 #endif
 262
 263 #if defined(ENABLE_MEDIA_ROUTER)
 264 #include "chrome/browser/media/router/presentation_service_delegate_impl.h"
 265 #endif
 266
 267 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 268 #include "chrome/browser/usb/web_usb_permission_provider.h"
 269 #endif
 270
 271 using base::FileDescriptor;
 272 using blink::WebWindowFeatures;
 273 using content::AccessTokenStore;
 274 using content::BrowserThread;
 275 using content::BrowserURLHandler;
 276 using content::ChildProcessSecurityPolicy;
 277 using content::QuotaPermissionContext;
 278 using content::RenderFrameHost;
 279 using content::RenderViewHost;
 280 using content::ResourceType;
 281 using content::SiteInstance;
 282 using content::WebContents;
 283 using content::WebPreferences;
 284 using message_center::NotifierId;
 285
 286 #if defined(OS_POSIX)
 287 using content::FileDescriptorInfo;
 288 #endif
 289
 290 #if defined(ENABLE_EXTENSIONS)
 291 using extensions::APIPermission;
 292 using extensions::ChromeContentBrowserClientExtensionsPart;
 293 using extensions::Extension;
 294 using extensions::InfoMap;
 295 using extensions::Manifest;
 296 #endif
 297
 298 #if defined(ENABLE_PLUGINS)
 299 using plugins::ChromeContentBrowserClientPluginsPart;
 300 #endif
 301
 302 namespace {
 303
 304 // Cached version of the locale so we can return the locale on the I/O
 305 // thread.
 306 base::LazyInstance<std::string> g_io_thread_application_locale;
 307
 308 #if defined(ENABLE_PLUGINS)
 309 // TODO(teravest): Add renderer-side API-specific checking for these APIs so
 310 // that blanket permission isn't granted to all dev channel APIs for these.
 311 // http://crbug.com/386743
 312 const char* const kPredefinedAllowedDevChannelOrigins[] = {
 313   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",  // see crbug.com/383937
 314   "4EB74897CB187C7633357C2FE832E0AD6A44883A"   // see crbug.com/383937
 315 };
 316
 317 const char* const kPredefinedAllowedFileHandleOrigins[] = {
 318   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",  // see crbug.com/234789
 319   "4EB74897CB187C7633357C2FE832E0AD6A44883A"   // see crbug.com/234789
 320 };
 321
 322 const char* const kPredefinedAllowedSocketOrigins[] = {
 323   "okddffdblfhhnmhodogpojmfkjmhinfp",  // Test SSH Client
 324   "pnhechapfaindjhompbnflcldabbghjo",  // HTerm App (SSH Client)
 325   "bglhmjfplikpjnfoegeomebmfnkjomhe",  // see crbug.com/122126
 326   "gbchcmhmhahfdphkhkmpfmihenigjmpp",  // Chrome Remote Desktop
 327   "kgngmbheleoaphbjbaiobfdepmghbfah",  // Pre-release Chrome Remote Desktop
 328   "odkaodonbgfohohmklejpjiejmcipmib",  // Dogfood Chrome Remote Desktop
 329   "ojoimpklfciegopdfgeenehpalipignm",  // Chromoting canary
 330   "cbkkbcmdlboombapidmoeolnmdacpkch",  // see crbug.com/129089
 331   "hhnbmknkdabfoieppbbljkhkfjcmcbjh",  // see crbug.com/134099
 332   "mablfbjkhmhkmefkjjacnbaikjkipphg",  // see crbug.com/134099
 333   "pdeelgamlgannhelgoegilelnnojegoh",  // see crbug.com/134099
 334   "cabapfdbkniadpollkckdnedaanlciaj",  // see crbug.com/134099
 335   "mapljbgnjledlpdmlchihnmeclmefbba",  // see crbug.com/134099
 336   "ghbfeebgmiidnnmeobbbaiamklmpbpii",  // see crbug.com/134099
 337   "jdfhpkjeckflbbleddjlpimecpbjdeep",  // see crbug.com/142514
 338   "iabmpiboiopbgfabjmgeedhcmjenhbla",  // see crbug.com/165080
 339   "B7CF8A292249681AF81771650BA4CEEAF19A4560",  // see crbug.com/165080
 340   "7525AF4F66763A70A883C4700529F647B470E4D2",  // see crbug.com/238084
 341   "0B549507088E1564D672F7942EB87CA4DAD73972",  // see crbug.com/238084
 342   "864288364E239573E777D3E0E36864E590E95C74"   // see crbug.com/238084
 343 };
 344 #endif
 345
 346 // Returns a copy of the given url with its host set to given host and path set
 347 // to given path. Other parts of the url will be the same.
 348 GURL ReplaceURLHostAndPath(const GURL& url,
 349                            const std::string& host,
 350                            const std::string& path) {
 351   url::Replacements<char> replacements;
 352   replacements.SetHost(host.c_str(), url::Component(0, host.length()));
 353   replacements.SetPath(path.c_str(), url::Component(0, path.length()));
 354   return url.ReplaceComponents(replacements);
 355 }
 356
 357 // Maps "foo://bar/baz/" to "foo://chrome/bar/baz/".
 358 GURL AddUberHost(const GURL& url) {
 359   const std::string uber_host = chrome::kChromeUIUberHost;
 360   const std::string new_path = url.host() + url.path();
 361
 362   return ReplaceURLHostAndPath(url, uber_host, new_path);
 363 }
 364
 365 // If url->host() is "chrome" and url->path() has characters other than the
 366 // first slash, changes the url from "foo://chrome/bar/" to "foo://bar/" and
 367 // returns true. Otherwise returns false.
 368 bool RemoveUberHost(GURL* url) {
 369   if (url->host() != chrome::kChromeUIUberHost)
 370     return false;
 371
 372   if (url->path().empty() || url->path() == "/")
 373     return false;
 374
 375   const std::string old_path = url->path();
 376
 377   const std::string::size_type separator = old_path.find('/', 1);
 378   std::string new_host;
 379   std::string new_path;
 380   if (separator == std::string::npos) {
 381     new_host = old_path.substr(1);
 382   } else {
 383     new_host = old_path.substr(1, separator - 1);
 384     new_path = old_path.substr(separator);
 385   }
 386
 387   // Do not allow URLs with paths empty before the first slash since we can't
 388   // have an empty host. (e.g "foo://chrome//")
 389   if (new_host.empty())
 390     return false;
 391
 392   *url = ReplaceURLHostAndPath(*url, new_host, new_path);
 393
 394   DCHECK(url->is_valid());
 395
 396   return true;
 397 }
 398
 399 // Handles rewriting Web UI URLs.
 400 bool HandleWebUI(GURL* url, content::BrowserContext* browser_context) {
 401   // Do not handle special URLs such as "about:foo"
 402   if (!url->host().empty()) {
 403     const GURL chrome_url = AddUberHost(*url);
 404
 405     // Handle valid "chrome://chrome/foo" URLs so the reverse handler will
 406     // be called.
 407     if (ChromeWebUIControllerFactory::GetInstance()->UseWebUIForURL(
 408             browser_context, chrome_url))
 409       return true;
 410   }
 411
 412   if (!ChromeWebUIControllerFactory::GetInstance()->UseWebUIForURL(
 413           browser_context, *url))
 414     return false;
 415
 416 #if defined(OS_CHROMEOS)
 417   // Special case : in ChromeOS in Guest mode bookmarks and history are
 418   // disabled for security reasons. New tab page explains the reasons, so
 419   // we redirect user to new tab page.
 420   if (user_manager::UserManager::Get()->IsLoggedInAsGuest()) {
 421     if (url->SchemeIs(content::kChromeUIScheme) &&
 422         (url->DomainIs(chrome::kChromeUIBookmarksHost) ||
 423          url->DomainIs(chrome::kChromeUIHistoryHost))) {
 424       // Rewrite with new tab URL
 425       *url = GURL(chrome::kChromeUINewTabURL);
 426     }
 427   }
 428 #endif
 429
 430   return true;
 431 }
 432
 433 // Reverse URL handler for Web UI. Maps "chrome://chrome/foo/" to
 434 // "chrome://foo/".
 435 bool HandleWebUIReverse(GURL* url, content::BrowserContext* browser_context) {
 436   if (!url->is_valid() || !url->SchemeIs(content::kChromeUIScheme))
 437     return false;
 438
 439   return RemoveUberHost(url);
 440 }
 441
 442 bool CertMatchesFilter(const net::X509Certificate& cert,
 443                        const base::DictionaryValue& filter) {
 444   // TODO(markusheintz): This is the minimal required filter implementation.
 445   // Implement a better matcher.
 446
 447   // An empty filter matches any client certificate since no requirements are
 448   // specified at all.
 449   if (filter.empty())
 450     return true;
 451
 452   std::string common_name;
 453   if (filter.GetString("ISSUER.CN", &common_name) &&
 454       (cert.issuer().common_name == common_name)) {
 455     return true;
 456   }
 457   return false;
 458 }
 459
 460 #if defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
 461 breakpad::CrashHandlerHostLinux* CreateCrashHandlerHost(
 462     const std::string& process_type) {
 463   base::FilePath dumps_path;
 464   PathService::Get(chrome::DIR_CRASH_DUMPS, &dumps_path);
 465   {
 466     ANNOTATE_SCOPED_MEMORY_LEAK;
 467     bool upload = (getenv(env_vars::kHeadless) == NULL);
 468     breakpad::CrashHandlerHostLinux* crash_handler =
 469         new breakpad::CrashHandlerHostLinux(process_type, dumps_path, upload);
 470     crash_handler->StartUploaderThread();
 471     return crash_handler;
 472   }
 473 }
 474
 475 int GetCrashSignalFD(const base::CommandLine& command_line) {
 476   // Extensions have the same process type as renderers.
 477   if (command_line.HasSwitch(extensions::switches::kExtensionProcess)) {
 478     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 479     if (!crash_handler)
 480       crash_handler = CreateCrashHandlerHost("extension");
 481     return crash_handler->GetDeathSignalSocket();
 482   }
 483
 484   std::string process_type =
 485       command_line.GetSwitchValueASCII(switches::kProcessType);
 486
 487   if (process_type == switches::kRendererProcess) {
 488     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 489     if (!crash_handler)
 490       crash_handler = CreateCrashHandlerHost(process_type);
 491     return crash_handler->GetDeathSignalSocket();
 492   }
 493
 494   if (process_type == switches::kPluginProcess) {
 495     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 496     if (!crash_handler)
 497       crash_handler = CreateCrashHandlerHost(process_type);
 498     return crash_handler->GetDeathSignalSocket();
 499   }
 500
 501   if (process_type == switches::kPpapiPluginProcess) {
 502     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 503     if (!crash_handler)
 504       crash_handler = CreateCrashHandlerHost(process_type);
 505     return crash_handler->GetDeathSignalSocket();
 506   }
 507
 508   if (process_type == switches::kGpuProcess) {
 509     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 510     if (!crash_handler)
 511       crash_handler = CreateCrashHandlerHost(process_type);
 512     return crash_handler->GetDeathSignalSocket();
 513   }
 514
 515   return -1;
 516 }
 517 #endif  // defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
 518
 519 void SetApplicationLocaleOnIOThread(const std::string& locale) {
 520   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 521   g_io_thread_application_locale.Get() = locale;
 522 }
 523
 524 void HandleBlockedPopupOnUIThread(const BlockedWindowParams& params) {
 525   RenderFrameHost* render_frame_host = RenderFrameHost::FromID(
 526       params.render_process_id(), params.opener_render_frame_id());
 527   if (!render_frame_host)
 528     return;
 529   WebContents* tab = WebContents::FromRenderFrameHost(render_frame_host);
 530   // The tab might already have navigated away.  We only need to do this check
 531   // for main frames, since the RenderFrameHost for a subframe opener will have
 532   // already been deleted if the main frame navigates away.
 533   if (!tab ||
 534       (!render_frame_host->GetParent() &&
 535        tab->GetMainFrame() != render_frame_host))
 536     return;
 537
 538   prerender::PrerenderContents* prerender_contents =
 539       prerender::PrerenderContents::FromWebContents(tab);
 540   if (prerender_contents) {
 541     prerender_contents->Destroy(prerender::FINAL_STATUS_CREATE_NEW_WINDOW);
 542     return;
 543   }
 544
 545   PopupBlockerTabHelper* popup_helper =
 546       PopupBlockerTabHelper::FromWebContents(tab);
 547   if (!popup_helper)
 548     return;
 549   popup_helper->AddBlockedPopup(params);
 550 }
 551
 552 // An implementation of the SSLCertReporter interface used by
 553 // SSLErrorHandler. Uses the SafeBrowsing UI manager to send invalid
 554 // certificate reports.
 555 class SafeBrowsingSSLCertReporter : public SSLCertReporter {
 556  public:
 557   explicit SafeBrowsingSSLCertReporter(
 558       const scoped_refptr<SafeBrowsingUIManager>& safe_browsing_ui_manager)
 559       : safe_browsing_ui_manager_(safe_browsing_ui_manager) {}
 560   ~SafeBrowsingSSLCertReporter() override {}
 561
 562   // SSLCertReporter implementation
 563   void ReportInvalidCertificateChain(
 564       const std::string& serialized_report) override {
 565     if (safe_browsing_ui_manager_) {
 566       safe_browsing_ui_manager_->ReportInvalidCertificateChain(
 567           serialized_report, base::Bind(&base::DoNothing));
 568     }
 569   }
 570
 571  private:
 572   const scoped_refptr<SafeBrowsingUIManager> safe_browsing_ui_manager_;
 573 };
 574
 575 #if defined(OS_ANDROID)
 576
 577 void HandleSingleTabModeBlockOnUIThread(const BlockedWindowParams& params) {
 578   WebContents* web_contents = tab_util::GetWebContentsByFrameID(
 579       params.render_process_id(), params.opener_render_frame_id());
 580   if (!web_contents)
 581     return;
 582
 583   SingleTabModeTabHelper::FromWebContents(web_contents)->HandleOpenUrl(params);
 584 }
 585
 586 float GetDeviceScaleAdjustment() {
 587   static const float kMinFSM = 1.05f;
 588   static const int kWidthForMinFSM = 320;
 589   static const float kMaxFSM = 1.3f;
 590   static const int kWidthForMaxFSM = 800;
 591
 592   gfx::DeviceDisplayInfo info;
 593   int minWidth = info.GetSmallestDIPWidth();
 594
 595   if (minWidth <= kWidthForMinFSM)
 596     return kMinFSM;
 597   if (minWidth >= kWidthForMaxFSM)
 598     return kMaxFSM;
 599
 600   // The font scale multiplier varies linearly between kMinFSM and kMaxFSM.
 601   float ratio = static_cast<float>(minWidth - kWidthForMinFSM) /
 602       (kWidthForMaxFSM - kWidthForMinFSM);
 603   return ratio * (kMaxFSM - kMinFSM) + kMinFSM;
 604 }
 605
 606 #endif  // defined(OS_ANDROID)
 607
 608 #if defined(ENABLE_EXTENSIONS)
 609 // By default, JavaScript and images are enabled in guest content.
 610 void GetGuestViewDefaultContentSettingRules(
 611     bool incognito,
 612     RendererContentSettingRules* rules) {
 613   rules->image_rules.push_back(
 614       ContentSettingPatternSource(ContentSettingsPattern::Wildcard(),
 615                                   ContentSettingsPattern::Wildcard(),
 616                                   CONTENT_SETTING_ALLOW,
 617                                   std::string(),
 618                                   incognito));
 619
 620   rules->script_rules.push_back(
 621       ContentSettingPatternSource(ContentSettingsPattern::Wildcard(),
 622                                   ContentSettingsPattern::Wildcard(),
 623                                   CONTENT_SETTING_ALLOW,
 624                                   std::string(),
 625                                   incognito));
 626 }
 627 #endif  // defined(ENABLE_EXTENSIONS)
 628
 629 }  // namespace
 630
 631 ChromeContentBrowserClient::ChromeContentBrowserClient()
 632     :
 633       weak_factory_(this) {
 634 #if defined(ENABLE_PLUGINS)
 635   for (size_t i = 0; i < arraysize(kPredefinedAllowedDevChannelOrigins); ++i)
 636     allowed_dev_channel_origins_.insert(kPredefinedAllowedDevChannelOrigins[i]);
 637   for (size_t i = 0; i < arraysize(kPredefinedAllowedFileHandleOrigins); ++i)
 638     allowed_file_handle_origins_.insert(kPredefinedAllowedFileHandleOrigins[i]);
 639   for (size_t i = 0; i < arraysize(kPredefinedAllowedSocketOrigins); ++i)
 640     allowed_socket_origins_.insert(kPredefinedAllowedSocketOrigins[i]);
 641
 642   extra_parts_.push_back(new ChromeContentBrowserClientPluginsPart);
 643 #endif
 644
 645 #if !defined(OS_ANDROID)
 646   TtsExtensionEngine* tts_extension_engine = TtsExtensionEngine::GetInstance();
 647   TtsController::GetInstance()->SetTtsEngineDelegate(tts_extension_engine);
 648 #endif
 649
 650 #if defined(ENABLE_EXTENSIONS)
 651   extra_parts_.push_back(new ChromeContentBrowserClientExtensionsPart);
 652 #endif
 653 }
 654
 655 ChromeContentBrowserClient::~ChromeContentBrowserClient() {
 656   for (int i = static_cast<int>(extra_parts_.size()) - 1; i >= 0; --i)
 657     delete extra_parts_[i];
 658   extra_parts_.clear();
 659 }
 660
 661 // static
 662 void ChromeContentBrowserClient::RegisterProfilePrefs(
 663     user_prefs::PrefRegistrySyncable* registry) {
 664   registry->RegisterBooleanPref(prefs::kDisable3DAPIs, false);
 665   registry->RegisterBooleanPref(prefs::kEnableHyperlinkAuditing, true);
 666   registry->RegisterListPref(prefs::kEnableDeprecatedWebPlatformFeatures);
 667 }
 668
 669 // static
 670 void ChromeContentBrowserClient::SetApplicationLocale(
 671     const std::string& locale) {
 672   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 673
 674   // This object is guaranteed to outlive all threads so we don't have to
 675   // worry about the lack of refcounting and can just post as Unretained.
 676   //
 677   // The common case is that this function is called early in Chrome startup
 678   // before any threads are created (it will also be called later if the user
 679   // changes the pref). In this case, there will be no threads created and
 680   // posting will fail. When there are no threads, we can just set the string
 681   // without worrying about threadsafety.
 682   if (!BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
 683           base::Bind(&SetApplicationLocaleOnIOThread, locale))) {
 684     g_io_thread_application_locale.Get() = locale;
 685   }
 686 }
 687
 688 content::BrowserMainParts* ChromeContentBrowserClient::CreateBrowserMainParts(
 689     const content::MainFunctionParams& parameters) {
 690   ChromeBrowserMainParts* main_parts;
 691   // Construct the Main browser parts based on the OS type.
 692 #if defined(OS_WIN)
 693   main_parts = new ChromeBrowserMainPartsWin(parameters);
 694 #elif defined(OS_MACOSX)
 695   main_parts = new ChromeBrowserMainPartsMac(parameters);
 696 #elif defined(OS_CHROMEOS)
 697   main_parts = new chromeos::ChromeBrowserMainPartsChromeos(parameters);
 698 #elif defined(OS_LINUX)
 699   main_parts = new ChromeBrowserMainPartsLinux(parameters);
 700 #elif defined(OS_ANDROID)
 701   main_parts = new ChromeBrowserMainPartsAndroid(parameters);
 702 #elif defined(OS_POSIX)
 703   main_parts = new ChromeBrowserMainPartsPosix(parameters);
 704 #else
 705   NOTREACHED();
 706   main_parts = new ChromeBrowserMainParts(parameters);
 707 #endif
 708
 709   chrome::AddProfilesExtraParts(main_parts);
 710
 711   // Construct additional browser parts. Stages are called in the order in
 712   // which they are added.
 713 #if defined(TOOLKIT_VIEWS)
 714   main_parts->AddParts(new ChromeBrowserMainExtraPartsViews());
 715 #endif
 716
 717 // TODO(oshima): Athena on chrome currently requires USE_ASH to build.
 718 // We should reduce the dependency as much as possible.
 719 #if defined(USE_ASH)
 720   main_parts->AddParts(new ChromeBrowserMainExtraPartsAsh());
 721 #endif
 722
 723 #if defined(USE_AURA)
 724   main_parts->AddParts(new ChromeBrowserMainExtraPartsAura());
 725 #endif
 726
 727 #if defined(USE_X11)
 728   main_parts->AddParts(new ChromeBrowserMainExtraPartsX11());
 729 #endif
 730
 731   chrome::AddMetricsExtraParts(main_parts);
 732
 733   return main_parts;
 734 }
 735
 736 void ChromeContentBrowserClient::PostAfterStartupTask(
 737     const tracked_objects::Location& from_here,
 738     const scoped_refptr<base::TaskRunner>& task_runner,
 739     const base::Closure& task) {
 740   AfterStartupTaskUtils::PostTask(from_here, task_runner, task);
 741 }
 742
 743 std::string ChromeContentBrowserClient::GetStoragePartitionIdForSite(
 744     content::BrowserContext* browser_context,
 745     const GURL& site) {
 746   std::string partition_id;
 747
 748   // The partition ID for webview guest processes is the string value of its
 749   // SiteInstance URL - "chrome-guest://app_id/persist?partition".
 750   if (site.SchemeIs(content::kGuestScheme)) {
 751     partition_id = site.spec();
 752   } else if (!switches::IsEnableWebviewBasedSignin() &&
 753              site.GetOrigin().spec() == chrome::kChromeUIChromeSigninURL) {
 754     // The non-webview Chrome signin page has an embedded iframe of extension
 755     // and web content, thus it must be isolated from other webUI pages.
 756     partition_id = site.GetOrigin().spec();
 757   }
 758
 759   DCHECK(IsValidStoragePartitionId(browser_context, partition_id));
 760   return partition_id;
 761 }
 762
 763 bool ChromeContentBrowserClient::IsValidStoragePartitionId(
 764     content::BrowserContext* browser_context,
 765     const std::string& partition_id) {
 766   // The default ID is empty and is always valid.
 767   if (partition_id.empty())
 768     return true;
 769
 770   return GURL(partition_id).is_valid();
 771 }
 772
 773 void ChromeContentBrowserClient::GetStoragePartitionConfigForSite(
 774     content::BrowserContext* browser_context,
 775     const GURL& site,
 776     bool can_be_default,
 777     std::string* partition_domain,
 778     std::string* partition_name,
 779     bool* in_memory) {
 780   // Default to the browser-wide storage partition and override based on |site|
 781   // below.
 782   partition_domain->clear();
 783   partition_name->clear();
 784   *in_memory = false;
 785
 786   bool success = false;
 787 #if defined(ENABLE_EXTENSIONS)
 788   success = extensions::WebViewGuest::GetGuestPartitionConfigForSite(
 789       site, partition_domain, partition_name, in_memory);
 790
 791   if (!success && site.SchemeIs(extensions::kExtensionScheme)) {
 792     // If |can_be_default| is false, the caller is stating that the |site|
 793     // should be parsed as if it had isolated storage. In particular it is
 794     // important to NOT check ExtensionService for the is_storage_isolated()
 795     // attribute because this code path is run during Extension uninstall
 796     // to do cleanup after the Extension has already been unloaded from the
 797     // ExtensionService.
 798     bool is_isolated = !can_be_default;
 799     if (can_be_default) {
 800       if (extensions::util::SiteHasIsolatedStorage(site, browser_context))
 801         is_isolated = true;
 802     }
 803
 804     if (is_isolated) {
 805       CHECK(site.has_host());
 806       // For extensions with isolated storage, the the host of the |site| is
 807       // the |partition_domain|. The |in_memory| and |partition_name| are only
 808       // used in guest schemes so they are cleared here.
 809       *partition_domain = site.host();
 810       *in_memory = false;
 811       partition_name->clear();
 812     }
 813     success = true;
 814   }
 815 #endif
 816
 817   if (!success &&
 818       (!switches::IsEnableWebviewBasedSignin() &&
 819        site.GetOrigin().spec() == chrome::kChromeUIChromeSigninURL)) {
 820     // The non-webview Chrome signin page has an embedded iframe of extension
 821     // and web content, thus it must be isolated from other webUI pages.
 822     *partition_domain = chrome::kChromeUIChromeSigninHost;
 823   }
 824
 825   // Assert that if |can_be_default| is false, the code above must have found a
 826   // non-default partition.  If this fails, the caller has a serious logic
 827   // error about which StoragePartition they expect to be in and it is not
 828   // safe to continue.
 829   CHECK(can_be_default || !partition_domain->empty());
 830 }
 831
 832 content::WebContentsViewDelegate*
 833     ChromeContentBrowserClient::GetWebContentsViewDelegate(
 834         content::WebContents* web_contents) {
 835   return chrome::CreateWebContentsViewDelegate(web_contents);
 836 }
 837
 838 void ChromeContentBrowserClient::RenderProcessWillLaunch(
 839     content::RenderProcessHost* host) {
 840   int id = host->GetID();
 841   Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
 842   net::URLRequestContextGetter* context =
 843       profile->GetRequestContextForRenderProcess(id);
 844
 845   host->AddFilter(new ChromeRenderMessageFilter(id, profile));
 846 #if defined(ENABLE_EXTENSIONS)
 847   host->AddFilter(new cast::CastTransportHostFilter);
 848 #endif
 849 #if defined(ENABLE_PRINTING)
 850   host->AddFilter(new printing::PrintingMessageFilter(id, profile));
 851 #endif
 852   host->AddFilter(new SearchProviderInstallStateMessageFilter(id, profile));
 853 #if defined(ENABLE_SPELLCHECK)
 854   host->AddFilter(new SpellCheckMessageFilter(id));
 855 #endif
 856 #if defined(USE_BROWSER_SPELLCHECKER)
 857   host->AddFilter(new SpellCheckMessageFilterPlatform(id));
 858 #endif
 859   host->AddFilter(new ChromeNetBenchmarkingMessageFilter(profile, context));
 860   host->AddFilter(new prerender::PrerenderMessageFilter(id, profile));
 861   host->AddFilter(new TtsMessageFilter(host->GetBrowserContext()));
 862 #if defined(ENABLE_WEBRTC)
 863   WebRtcLoggingHandlerHost* webrtc_logging_handler_host =
 864       new WebRtcLoggingHandlerHost(profile);
 865   host->SetWebRtcLogMessageCallback(base::Bind(
 866       &WebRtcLoggingHandlerHost::LogMessage, webrtc_logging_handler_host));
 867   host->AddFilter(webrtc_logging_handler_host);
 868   host->SetUserData(host, new base::UserDataAdapter<WebRtcLoggingHandlerHost>(
 869       webrtc_logging_handler_host));
 870 #endif
 871 #if !defined(DISABLE_NACL)
 872   host->AddFilter(new nacl::NaClHostMessageFilter(
 873       id, profile->IsOffTheRecord(),
 874       profile->GetPath(),
 875       context));
 876 #endif
 877 #if defined(OS_ANDROID)
 878   host->AddFilter(new cdm::CdmMessageFilterAndroid());
 879 #endif
 880   DataReductionProxyChromeSettings* data_reduction_proxy_settings =
 881       DataReductionProxyChromeSettingsFactory::GetForBrowserContext(profile);
 882   host->AddFilter(new data_reduction_proxy::DataReductionProxyMessageFilter(
 883       data_reduction_proxy_settings));
 884
 885   host->Send(new ChromeViewMsg_SetIsIncognitoProcess(
 886       profile->IsOffTheRecord()));
 887
 888   for (size_t i = 0; i < extra_parts_.size(); ++i)
 889     extra_parts_[i]->RenderProcessWillLaunch(host);
 890
 891   RendererContentSettingRules rules;
 892   if (host->IsForGuestsOnly()) {
 893 #if defined(ENABLE_EXTENSIONS)
 894     GetGuestViewDefaultContentSettingRules(profile->IsOffTheRecord(), &rules);
 895 #else
 896     NOTREACHED();
 897 #endif
 898   } else {
 899     GetRendererContentSettingRules(
 900         HostContentSettingsMapFactory::GetForProfile(profile), &rules);
 901   }
 902   host->Send(new ChromeViewMsg_SetContentSettingRules(rules));
 903 }
 904
 905 GURL ChromeContentBrowserClient::GetEffectiveURL(
 906     content::BrowserContext* browser_context, const GURL& url) {
 907   Profile* profile = Profile::FromBrowserContext(browser_context);
 908   if (!profile)
 909     return url;
 910
 911   // If the input |url| should be assigned to the Instant renderer, make its
 912   // effective URL distinct from other URLs on the search provider's domain.
 913   if (search::ShouldAssignURLToInstantRenderer(url, profile))
 914     return search::GetEffectiveURLForInstant(url, profile);
 915
 916 #if defined(ENABLE_EXTENSIONS)
 917   return ChromeContentBrowserClientExtensionsPart::GetEffectiveURL(
 918       profile, url);
 919 #else
 920   return url;
 921 #endif
 922 }
 923
 924 bool ChromeContentBrowserClient::ShouldUseProcessPerSite(
 925     content::BrowserContext* browser_context, const GURL& effective_url) {
 926   // Non-extension, non-Instant URLs should generally use
 927   // process-per-site-instance.  Because we expect to use the effective URL,
 928   // URLs for hosted apps (apart from bookmark apps) should have an extension
 929   // scheme by now.
 930
 931   Profile* profile = Profile::FromBrowserContext(browser_context);
 932   if (!profile)
 933     return false;
 934
 935   if (search::ShouldUseProcessPerSiteForInstantURL(effective_url, profile))
 936     return true;
 937
 938 #if defined(ENABLE_EXTENSIONS)
 939   return ChromeContentBrowserClientExtensionsPart::ShouldUseProcessPerSite(
 940       profile, effective_url);
 941 #else
 942   return false;
 943 #endif
 944 }
 945
 946 // TODO(creis, nick): https://crbug.com/160576 describes a weakness in our
 947 // origin-lock enforcement, where we don't have a way to efficiently know
 948 // effective URLs on the IO thread, and wind up killing processes that e.g.
 949 // request cookies for their actual URL. This whole function (and its
 950 // ExtensionsPart) should be removed once we add that ability to the IO thread.
 951 bool ChromeContentBrowserClient::ShouldLockToOrigin(
 952     content::BrowserContext* browser_context,
 953     const GURL& effective_site_url) {
 954   // Origin lock to the search scheme would kill processes upon legitimate
 955   // requests for cookies from the search engine's domain.
 956   if (effective_site_url.SchemeIs(chrome::kChromeSearchScheme))
 957     return false;
 958
 959 #if defined(ENABLE_EXTENSIONS)
 960   // Disable origin lock if this is an extension/app that applies effective URL
 961   // mappings.
 962   if (!ChromeContentBrowserClientExtensionsPart::ShouldLockToOrigin(
 963           browser_context, effective_site_url)) {
 964     return false;
 965   }
 966 #endif
 967   return true;
 968 }
 969
 970 // These are treated as WebUI schemes but do not get WebUI bindings. Also,
 971 // view-source is allowed for these schemes.
 972 void ChromeContentBrowserClient::GetAdditionalWebUISchemes(
 973     std::vector<std::string>* additional_schemes) {
 974   additional_schemes->push_back(chrome::kChromeSearchScheme);
 975   additional_schemes->push_back(dom_distiller::kDomDistillerScheme);
 976 }
 977
 978 void ChromeContentBrowserClient::GetAdditionalWebUIHostsToIgnoreParititionCheck(
 979     std::vector<std::string>* hosts) {
 980   hosts->push_back(chrome::kChromeUIExtensionIconHost);
 981   hosts->push_back(chrome::kChromeUIFaviconHost);
 982   hosts->push_back(chrome::kChromeUIThemeHost);
 983   hosts->push_back(chrome::kChromeUIThumbnailHost);
 984   hosts->push_back(chrome::kChromeUIThumbnailHost2);
 985   hosts->push_back(chrome::kChromeUIThumbnailListHost);
 986 }
 987
 988 net::URLRequestContextGetter*
 989 ChromeContentBrowserClient::CreateRequestContext(
 990     content::BrowserContext* browser_context,
 991     content::ProtocolHandlerMap* protocol_handlers,
 992     content::URLRequestInterceptorScopedVector request_interceptors) {
 993   Profile* profile = Profile::FromBrowserContext(browser_context);
 994   return profile->CreateRequestContext(protocol_handlers,
 995                                        request_interceptors.Pass());
 996 }
 997
 998 net::URLRequestContextGetter*
 999 ChromeContentBrowserClient::CreateRequestContextForStoragePartition(
1000     content::BrowserContext* browser_context,
1001     const base::FilePath& partition_path,
1002     bool in_memory,
1003     content::ProtocolHandlerMap* protocol_handlers,
1004     content::URLRequestInterceptorScopedVector request_interceptors) {
1005   Profile* profile = Profile::FromBrowserContext(browser_context);
1006   return profile->CreateRequestContextForStoragePartition(
1007       partition_path,
1008       in_memory,
1009       protocol_handlers,
1010       request_interceptors.Pass());
1011 }
1012
1013 bool ChromeContentBrowserClient::IsHandledURL(const GURL& url) {
1014   return ProfileIOData::IsHandledURL(url);
1015 }
1016
1017 bool ChromeContentBrowserClient::CanCommitURL(
1018     content::RenderProcessHost* process_host,
1019     const GURL& url) {
1020 #if defined(ENABLE_EXTENSIONS)
1021   return ChromeContentBrowserClientExtensionsPart::CanCommitURL(
1022       process_host, url);
1023 #else
1024   return true;
1025 #endif
1026 }
1027
1028 bool ChromeContentBrowserClient::IsIllegalOrigin(
1029     content::ResourceContext* resource_context,
1030     int child_process_id,
1031     const GURL& origin) {
1032 #if defined(ENABLE_EXTENSIONS)
1033   return ChromeContentBrowserClientExtensionsPart::IsIllegalOrigin(
1034       resource_context, child_process_id, origin);
1035 #else
1036   return false;
1037 #endif
1038 }
1039
1040 bool ChromeContentBrowserClient::ShouldAllowOpenURL(
1041     content::SiteInstance* site_instance, const GURL& url) {
1042   GURL from_url = site_instance->GetSiteURL();
1043
1044 #if defined(ENABLE_EXTENSIONS)
1045   bool result;
1046   if (ChromeContentBrowserClientExtensionsPart::ShouldAllowOpenURL(
1047       site_instance, from_url, url, &result))
1048     return result;
1049 #endif
1050
1051   // Do not allow chrome://chrome-signin navigate to other chrome:// URLs, since
1052   // the signin page may host untrusted web content.
1053   if (from_url.GetOrigin().spec() == chrome::kChromeUIChromeSigninURL &&
1054       url.SchemeIs(content::kChromeUIScheme) &&
1055       url.host() != chrome::kChromeUIChromeSigninHost) {
1056     VLOG(1) << "Blocked navigation to " << url.spec() << " from "
1057             << chrome::kChromeUIChromeSigninURL;
1058     return false;
1059   }
1060
1061   return true;
1062 }
1063
1064 bool ChromeContentBrowserClient::IsSuitableHost(
1065     content::RenderProcessHost* process_host,
1066     const GURL& site_url) {
1067   Profile* profile =
1068       Profile::FromBrowserContext(process_host->GetBrowserContext());
1069   // This may be NULL during tests. In that case, just assume any site can
1070   // share any host.
1071   if (!profile)
1072     return true;
1073
1074   // Instant URLs should only be in the instant process and instant process
1075   // should only have Instant URLs.
1076   InstantService* instant_service =
1077       InstantServiceFactory::GetForProfile(profile);
1078   if (instant_service) {
1079     bool is_instant_process = instant_service->IsInstantProcess(
1080         process_host->GetID());
1081     bool should_be_in_instant_process =
1082         search::ShouldAssignURLToInstantRenderer(site_url, profile);
1083     if (is_instant_process || should_be_in_instant_process)
1084       return is_instant_process && should_be_in_instant_process;
1085   }
1086
1087 #if defined(ENABLE_EXTENSIONS)
1088   return ChromeContentBrowserClientExtensionsPart::IsSuitableHost(
1089       profile, process_host, site_url);
1090 #else
1091   return true;
1092 #endif
1093 }
1094
1095 bool ChromeContentBrowserClient::MayReuseHost(
1096     content::RenderProcessHost* process_host) {
1097   // If there is currently a prerender in progress for the host provided,
1098   // it may not be shared. We require prerenders to be by themselves in a
1099   // separate process so that we can monitor their resource usage.
1100   Profile* profile = Profile::FromBrowserContext(
1101       process_host->GetBrowserContext());
1102   prerender::PrerenderManager* prerender_manager =
1103       prerender::PrerenderManagerFactory::GetForProfile(profile);
1104   if (prerender_manager &&
1105       !prerender_manager->MayReuseProcessHost(process_host)) {
1106     return false;
1107   }
1108
1109   return true;
1110 }
1111
1112 bool ChromeContentBrowserClient::ShouldTryToUseExistingProcessHost(
1113     content::BrowserContext* browser_context, const GURL& url) {
1114   // It has to be a valid URL for us to check for an extension.
1115   if (!url.is_valid())
1116     return false;
1117
1118 #if defined(ENABLE_EXTENSIONS)
1119   Profile* profile = Profile::FromBrowserContext(browser_context);
1120   return ChromeContentBrowserClientExtensionsPart::
1121       ShouldTryToUseExistingProcessHost(
1122           profile, url);
1123 #else
1124   return false;
1125 #endif
1126 }
1127
1128 void ChromeContentBrowserClient::SiteInstanceGotProcess(
1129     SiteInstance* site_instance) {
1130   CHECK(site_instance->HasProcess());
1131
1132   Profile* profile = Profile::FromBrowserContext(
1133       site_instance->GetBrowserContext());
1134   if (!profile)
1135     return;
1136
1137   // Remember the ID of the Instant process to signal the renderer process
1138   // on startup in |AppendExtraCommandLineSwitches| below.
1139   if (search::ShouldAssignURLToInstantRenderer(site_instance->GetSiteURL(),
1140                                                profile)) {
1141     InstantService* instant_service =
1142         InstantServiceFactory::GetForProfile(profile);
1143     if (instant_service)
1144       instant_service->AddInstantProcess(site_instance->GetProcess()->GetID());
1145   }
1146
1147   for (size_t i = 0; i < extra_parts_.size(); ++i)
1148     extra_parts_[i]->SiteInstanceGotProcess(site_instance);
1149 }
1150
1151 void ChromeContentBrowserClient::SiteInstanceDeleting(
1152     SiteInstance* site_instance) {
1153   if (!site_instance->HasProcess())
1154     return;
1155
1156   for (size_t i = 0; i < extra_parts_.size(); ++i)
1157     extra_parts_[i]->SiteInstanceDeleting(site_instance);
1158 }
1159
1160 bool ChromeContentBrowserClient::ShouldSwapBrowsingInstancesForNavigation(
1161     SiteInstance* site_instance,
1162     const GURL& current_url,
1163     const GURL& new_url) {
1164 #if defined(ENABLE_EXTENSIONS)
1165   return ChromeContentBrowserClientExtensionsPart::
1166       ShouldSwapBrowsingInstancesForNavigation(
1167           site_instance, current_url, new_url);
1168 #else
1169   return false;
1170 #endif
1171 }
1172
1173 bool ChromeContentBrowserClient::ShouldSwapProcessesForRedirect(
1174     content::ResourceContext* resource_context, const GURL& current_url,
1175     const GURL& new_url) {
1176 #if defined(ENABLE_EXTENSIONS)
1177   return ChromeContentBrowserClientExtensionsPart::
1178       ShouldSwapProcessesForRedirect(resource_context, current_url, new_url);
1179 #else
1180   return false;
1181 #endif
1182 }
1183
1184 bool ChromeContentBrowserClient::ShouldAssignSiteForURL(const GURL& url) {
1185   return !url.SchemeIs(chrome::kChromeNativeScheme);
1186 }
1187
1188 std::string ChromeContentBrowserClient::GetCanonicalEncodingNameByAliasName(
1189     const std::string& alias_name) {
1190   return CharacterEncoding::GetCanonicalEncodingNameByAliasName(alias_name);
1191 }
1192
1193 namespace {
1194
1195 bool IsAutoReloadEnabled() {
1196   // Fetch the field trial, even though we don't use it. Calling FindFullName()
1197   // causes the field-trial mechanism to report which group we're in, which
1198   // might reflect a hard disable or hard enable via flag, both of which have
1199   // their own field trial groups. This lets us know what percentage of users
1200   // manually enable or disable auto-reload.
1201   std::string group = base::FieldTrialList::FindFullName(
1202       "AutoReloadExperiment");
1203   const base::CommandLine& browser_command_line =
1204       *base::CommandLine::ForCurrentProcess();
1205   if (browser_command_line.HasSwitch(switches::kEnableOfflineAutoReload))
1206     return true;
1207   if (browser_command_line.HasSwitch(switches::kDisableOfflineAutoReload))
1208     return false;
1209   return true;
1210 }
1211
1212 bool IsAutoReloadVisibleOnlyEnabled() {
1213   // See the block comment in IsAutoReloadEnabled().
1214   std::string group = base::FieldTrialList::FindFullName(
1215       "AutoReloadVisibleOnlyExperiment");
1216   const base::CommandLine& browser_command_line =
1217       *base::CommandLine::ForCurrentProcess();
1218   if (browser_command_line.HasSwitch(
1219       switches::kEnableOfflineAutoReloadVisibleOnly)) {
1220     return true;
1221   }
1222   if (browser_command_line.HasSwitch(
1223       switches::kDisableOfflineAutoReloadVisibleOnly)) {
1224     return false;
1225   }
1226   return true;
1227 }
1228
1229 void MaybeAppendBlinkSettingsSwitchForFieldTrial(
1230     const base::CommandLine& browser_command_line,
1231     base::CommandLine* command_line) {
1232   // List of field trials that modify the blink-settings command line flag. No
1233   // two field trials in the list should specify the same keys, otherwise one
1234   // field trial may overwrite another. See Source/core/frame/Settings.in in
1235   // Blink for the list of valid keys.
1236   static const char* const kBlinkSettingsFieldTrials[] = {
1237     // Keys: backgroundHtmlParserOutstandingTokenLimit
1238     //       backgroundHtmlParserPendingTokenLimit
1239     "BackgroundHtmlParserTokenLimits",
1240
1241     // Keys: doHtmlPreloadScanning
1242     "HtmlPreloadScanning",
1243
1244     // Keys: lowPriorityIframes
1245     "LowPriorityIFrames",
1246   };
1247
1248   std::vector<std::string> blink_settings;
1249   for (const char* field_trial_name : kBlinkSettingsFieldTrials) {
1250     // Each blink-settings field trial should include a forcing_flag group,
1251     // to make sure that clients that specify the blink-settings flag on the
1252     // command line are excluded from the experiment groups. To make
1253     // sure we assign clients that specify this flag to the forcing_flag
1254     // group, we must call GetVariationParams for each field trial first
1255     // (for example, before checking HasSwitch() and returning), since
1256     // GetVariationParams has the side-effect of assigning the client to
1257     // a field trial group.
1258     std::map<std::string, std::string> params;
1259     if (variations::GetVariationParams(field_trial_name, &params)) {
1260       for (const auto& param : params) {
1261         blink_settings.push_back(base::StringPrintf(
1262             "%s=%s", param.first.c_str(), param.second.c_str()));
1263       }
1264     }
1265   }
1266
1267   // Flags for the ResourcePriorities field trial. The settings are
1268   // encoded in the field trial group name instead of as variations
1269   // because the variations code is not accessible from the loader.
1270   //
1271   // The group name encoding looks like this:
1272   //  <descriptiveName>_ABCDE_E2_F_G
1273   //    A - fetchDeferLateScripts (1 for true, 0 for false)
1274   //    B - fetchIncreaseFontPriority (1 for true, 0 for false)
1275   //    C - fetchIncreaseAsyncScriptPriority (1 for true, 0 for false)
1276   //    D - fetchIncreasePriorities (1 for true, 0 for false)
1277   //    E - fetchEnableLayoutBlockingThreshold (1 for true, 0 for false)
1278   //    E2 - fetchLayoutBlockingThreshold (Numeric)
1279   //    F - fetchMaxNumDelayableWhileLayoutBlocking (Numeric)
1280   //    G - fetchMaxNumDelayableRequests (Numeric)
1281   //
1282   // Only A-D are relevant to blink and exposed as settings
1283   // Any group names (Control, Default, etc) will not match the pattern or
1284   // flags and will get the default settings which is the expected behavior.
1285   std::string resource_priorities_trial_group =
1286       base::FieldTrialList::FindFullName("ResourcePriorities");
1287   std::vector<std::string> split_group(
1288       base::SplitString(resource_priorities_trial_group, "_",
1289                         base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL));
1290   if (split_group.size() == 5 && split_group[1].length() == 5) {
1291     if (split_group[1].at(0) == '1')
1292       blink_settings.push_back("fetchDeferLateScripts=true");
1293     if (split_group[1].at(1) == '1')
1294       blink_settings.push_back("fetchIncreaseFontPriority=true");
1295     if (split_group[1].at(2) == '1')
1296       blink_settings.push_back("fetchIncreaseAsyncScriptPriority=true");
1297     if (split_group[1].at(3) == '1')
1298       blink_settings.push_back("fetchIncreasePriorities=true");
1299   }
1300
1301   if (blink_settings.empty()) {
1302     return;
1303   }
1304
1305   if (browser_command_line.HasSwitch(switches::kBlinkSettings) ||
1306       command_line->HasSwitch(switches::kBlinkSettings)) {
1307     // The field trials should be configured to force users that specify the
1308     // blink-settings flag into a group with no params, and we return
1309     // above if no params were specified, so it's an error if we reach
1310     // this point.
1311     LOG(WARNING) << "Received field trial params, "
1312                     "but blink-settings switch already specified.";
1313     return;
1314   }
1315
1316   command_line->AppendSwitchASCII(switches::kBlinkSettings,
1317                                   base::JoinString(blink_settings, ","));
1318 }
1319
1320 }  // namespace
1321
1322 void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
1323     base::CommandLine* command_line,
1324     int child_process_id) {
1325 #if defined(OS_MACOSX)
1326   scoped_ptr<metrics::ClientInfo> client_info =
1327       GoogleUpdateSettings::LoadMetricsClientInfo();
1328   if (client_info) {
1329     command_line->AppendSwitchASCII(switches::kMetricsClientID,
1330                                     client_info->client_id);
1331   }
1332 #elif defined(OS_POSIX)
1333   if (breakpad::IsCrashReporterEnabled()) {
1334     scoped_ptr<metrics::ClientInfo> client_info =
1335         GoogleUpdateSettings::LoadMetricsClientInfo();
1336     command_line->AppendSwitchASCII(switches::kEnableCrashReporter,
1337                                     client_info ? client_info->client_id
1338                                                 : std::string());
1339   }
1340 #endif
1341
1342   if (logging::DialogsAreSuppressed())
1343     command_line->AppendSwitch(switches::kNoErrorDialogs);
1344
1345   std::string process_type =
1346       command_line->GetSwitchValueASCII(switches::kProcessType);
1347   const base::CommandLine& browser_command_line =
1348       *base::CommandLine::ForCurrentProcess();
1349
1350   static const char* const kCommonSwitchNames[] = {
1351     switches::kUserAgent,
1352     switches::kUserDataDir,  // Make logs go to the right file.
1353   };
1354   command_line->CopySwitchesFrom(browser_command_line, kCommonSwitchNames,
1355                                  arraysize(kCommonSwitchNames));
1356
1357 #if defined(ENABLE_IPC_FUZZER)
1358   static const char* const kIpcFuzzerSwitches[] = {
1359       switches::kIpcDumpDirectory,
1360       switches::kIpcFuzzerTestcase,
1361   };
1362   command_line->CopySwitchesFrom(browser_command_line, kIpcFuzzerSwitches,
1363                                  arraysize(kIpcFuzzerSwitches));
1364 #endif
1365
1366 #if defined(OS_CHROMEOS)
1367   static const char* const kChromeOSSwitches[] = {
1368     switches::kDisableDinosaurEasterEgg,
1369   };
1370   command_line->CopySwitchesFrom(browser_command_line, kChromeOSSwitches,
1371                                  arraysize(kChromeOSSwitches));
1372
1373   // On Chrome OS need to pass primary user homedir (in multi-profiles session).
1374   base::FilePath homedir;
1375   PathService::Get(base::DIR_HOME, &homedir);
1376   command_line->AppendSwitchASCII(chromeos::switches::kHomedir,
1377                                   homedir.value().c_str());
1378 #endif
1379
1380   if (process_type == switches::kRendererProcess) {
1381     content::RenderProcessHost* process =
1382         content::RenderProcessHost::FromID(child_process_id);
1383     Profile* profile =
1384         process ? Profile::FromBrowserContext(process->GetBrowserContext())
1385                 : NULL;
1386     for (size_t i = 0; i < extra_parts_.size(); ++i) {
1387       extra_parts_[i]->AppendExtraRendererCommandLineSwitches(
1388           command_line, process, profile);
1389     }
1390
1391 #if defined(OS_CHROMEOS)
1392     const std::string& login_profile =
1393         browser_command_line.GetSwitchValueASCII(
1394             chromeos::switches::kLoginProfile);
1395     if (!login_profile.empty())
1396       command_line->AppendSwitchASCII(
1397           chromeos::switches::kLoginProfile, login_profile);
1398 #endif
1399
1400 #if defined(ENABLE_WEBRTC)
1401     MaybeCopyDisableWebRtcEncryptionSwitch(command_line,
1402                                            browser_command_line,
1403                                            chrome::GetChannel());
1404 #endif
1405
1406     if (process) {
1407       PrefService* prefs = profile->GetPrefs();
1408       // Currently this pref is only registered if applied via a policy.
1409       if (prefs->HasPrefPath(prefs::kDisable3DAPIs) &&
1410           prefs->GetBoolean(prefs::kDisable3DAPIs)) {
1411         // Turn this policy into a command line switch.
1412         command_line->AppendSwitch(switches::kDisable3DAPIs);
1413       }
1414
1415       const base::ListValue* switches =
1416           prefs->GetList(prefs::kEnableDeprecatedWebPlatformFeatures);
1417       if (switches) {
1418         // Enable any deprecated features that have been re-enabled by policy.
1419         for (base::ListValue::const_iterator it = switches->begin();
1420              it != switches->end(); ++it) {
1421           std::string switch_to_enable;
1422           if ((*it)->GetAsString(&switch_to_enable))
1423             command_line->AppendSwitch(switch_to_enable);
1424         }
1425       }
1426
1427       // Disable client-side phishing detection in the renderer if it is
1428       // disabled in the Profile preferences or the browser process.
1429       if (!prefs->GetBoolean(prefs::kSafeBrowsingEnabled) ||
1430           !g_browser_process->safe_browsing_detection_service()) {
1431         command_line->AppendSwitch(
1432             switches::kDisableClientSidePhishingDetection);
1433       }
1434
1435       if (prefs->GetBoolean(prefs::kPrintPreviewDisabled))
1436         command_line->AppendSwitch(switches::kDisablePrintPreview);
1437
1438       InstantService* instant_service =
1439           InstantServiceFactory::GetForProfile(profile);
1440       if (instant_service &&
1441           instant_service->IsInstantProcess(process->GetID()))
1442         command_line->AppendSwitch(switches::kInstantProcess);
1443     }
1444
1445     if (IsAutoReloadEnabled())
1446       command_line->AppendSwitch(switches::kEnableOfflineAutoReload);
1447     if (IsAutoReloadVisibleOnlyEnabled()) {
1448       command_line->AppendSwitch(
1449           switches::kEnableOfflineAutoReloadVisibleOnly);
1450     }
1451
1452     {
1453       // Enable showing a saved copy if this session is in the field trial
1454       // or the user explicitly enabled it.  Note that as far as the
1455       // renderer is concerned, the feature is enabled if-and-only-if
1456       // one of the kEnableShowSavedCopy* switches is on the command
1457       // line; the yes/no/default behavior is only at the browser
1458       // command line level.
1459
1460       // Command line switches override
1461       const std::string& show_saved_copy_value =
1462           browser_command_line.GetSwitchValueASCII(switches::kShowSavedCopy);
1463       if (show_saved_copy_value == switches::kEnableShowSavedCopyPrimary ||
1464           show_saved_copy_value == switches::kEnableShowSavedCopySecondary ||
1465           show_saved_copy_value == switches::kDisableShowSavedCopy) {
1466         command_line->AppendSwitchASCII(switches::kShowSavedCopy,
1467                                         show_saved_copy_value);
1468       } else {
1469         std::string group =
1470             base::FieldTrialList::FindFullName("LoadStaleCacheExperiment");
1471
1472         if (group == "Primary") {
1473           command_line->AppendSwitchASCII(
1474               switches::kShowSavedCopy, switches::kEnableShowSavedCopyPrimary);
1475         } else if (group == "Secondary") {
1476           command_line->AppendSwitchASCII(
1477               switches::kShowSavedCopy,
1478               switches::kEnableShowSavedCopySecondary);
1479         }
1480       }
1481     }
1482
1483     MaybeAppendBlinkSettingsSwitchForFieldTrial(
1484         browser_command_line, command_line);
1485
1486     // Please keep this in alphabetical order.
1487     static const char* const kSwitchNames[] = {
1488 #if defined(OS_ANDROID)
1489       autofill::switches::kDisableAccessorySuggestionView,
1490       autofill::switches::kEnableAccessorySuggestionView,
1491 #endif
1492       autofill::switches::kDisableFillOnAccountSelect,
1493       autofill::switches::kDisablePasswordGeneration,
1494       autofill::switches::kEnableFillOnAccountSelect,
1495       autofill::switches::kEnableFillOnAccountSelectNoHighlighting,
1496       autofill::switches::kEnablePasswordGeneration,
1497       autofill::switches::kEnableSingleClickAutofill,
1498       autofill::switches::kEnableSuggestionsWithSubstringMatch,
1499       autofill::switches::kIgnoreAutocompleteOffForAutofill,
1500       autofill::switches::kLocalHeuristicsOnlyForPasswordGeneration,
1501 #if defined(ENABLE_EXTENSIONS)
1502       extensions::switches::kAllowHTTPBackgroundPage,
1503       extensions::switches::kAllowLegacyExtensionManifests,
1504       extensions::switches::kEnableAppWindowControls,
1505       extensions::switches::kEnableEmbeddedExtensionOptions,
1506       extensions::switches::kEnableExperimentalExtensionApis,
1507       extensions::switches::kExtensionsOnChromeURLs,
1508       extensions::switches::kWhitelistedExtensionID,
1509 #endif
1510       switches::kAllowInsecureLocalhost,
1511       switches::kAppsGalleryURL,
1512       switches::kCloudPrintURL,
1513       switches::kCloudPrintXmppEndpoint,
1514       switches::kDisableBundledPpapiFlash,
1515       switches::kDisableCastStreamingHWEncoding,
1516       switches::kDisableJavaScriptHarmonyShipping,
1517       switches::kDisableNewBookmarkApps,
1518 #if defined(ENABLE_SPELLCHECK) && defined(OS_ANDROID)
1519       switches::kEnableAndroidSpellChecker,
1520 #endif
1521       switches::kEnableBenchmarking,
1522       switches::kEnableNaCl,
1523 #if !defined(DISABLE_NACL)
1524       switches::kEnableNaClDebug,
1525       switches::kEnableNaClNonSfiMode,
1526       switches::kEnablePNaClSubzero,
1527 #endif
1528       switches::kEnableNetBenchmarking,
1529       switches::kEnableNewBookmarkApps,
1530       switches::kJavaScriptHarmony,
1531       switches::kMessageLoopHistogrammer,
1532       switches::kPpapiFlashArgs,
1533       switches::kPpapiFlashPath,
1534       switches::kPpapiFlashVersion,
1535       switches::kProfilingAtStart,
1536       switches::kProfilingFile,
1537       switches::kProfilingFlush,
1538       switches::kUnsafelyTreatInsecureOriginAsSecure,
1539       translate::switches::kTranslateSecurityOrigin,
1540     };
1541
1542     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1543                                    arraysize(kSwitchNames));
1544   } else if (process_type == switches::kUtilityProcess) {
1545 #if defined(ENABLE_EXTENSIONS)
1546     static const char* const kSwitchNames[] = {
1547       extensions::switches::kAllowHTTPBackgroundPage,
1548       extensions::switches::kEnableExperimentalExtensionApis,
1549       extensions::switches::kExtensionsOnChromeURLs,
1550       extensions::switches::kWhitelistedExtensionID,
1551     };
1552
1553     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1554                                    arraysize(kSwitchNames));
1555 #endif
1556   } else if (process_type == switches::kPluginProcess) {
1557 #if defined(OS_CHROMEOS)
1558     static const char* const kSwitchNames[] = {
1559       chromeos::switches::kLoginProfile,
1560     };
1561
1562     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1563                                    arraysize(kSwitchNames));
1564 #endif
1565   } else if (process_type == switches::kZygoteProcess) {
1566     static const char* const kSwitchNames[] = {
1567       // Load (in-process) Pepper plugins in-process in the zygote pre-sandbox.
1568       switches::kDisableBundledPpapiFlash,
1569 #if !defined(DISABLE_NACL)
1570       switches::kEnableNaClDebug,
1571       switches::kEnableNaClNonSfiMode,
1572       switches::kEnablePNaClSubzero,
1573       switches::kNaClDangerousNoSandboxNonSfi,
1574       switches::kUseNaClHelperNonSfi,
1575 #endif
1576       switches::kPpapiFlashPath,
1577       switches::kPpapiFlashVersion,
1578     };
1579
1580     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1581                                    arraysize(kSwitchNames));
1582   } else if (process_type == switches::kGpuProcess) {
1583     // If --ignore-gpu-blacklist is passed in, don't send in crash reports
1584     // because GPU is expected to be unreliable.
1585     if (browser_command_line.HasSwitch(switches::kIgnoreGpuBlacklist) &&
1586         !command_line->HasSwitch(switches::kDisableBreakpad))
1587       command_line->AppendSwitch(switches::kDisableBreakpad);
1588   }
1589
1590   // The command line switch kEnableBenchmarking needs to be specified along
1591   // with the kEnableStatsTable switch to ensure that the stats table global
1592   // is initialized correctly.
1593   if (command_line->HasSwitch(switches::kEnableBenchmarking))
1594     DCHECK(command_line->HasSwitch(switches::kEnableStatsTable));
1595 }
1596
1597 std::string ChromeContentBrowserClient::GetApplicationLocale() {
1598   if (BrowserThread::CurrentlyOn(BrowserThread::IO))
1599     return g_io_thread_application_locale.Get();
1600   return g_browser_process->GetApplicationLocale();
1601 }
1602
1603 std::string ChromeContentBrowserClient::GetAcceptLangs(
1604     content::BrowserContext* context) {
1605   Profile* profile = Profile::FromBrowserContext(context);
1606   return profile->GetPrefs()->GetString(prefs::kAcceptLanguages);
1607 }
1608
1609 const gfx::ImageSkia* ChromeContentBrowserClient::GetDefaultFavicon() {
1610   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
1611   return rb.GetNativeImageNamed(IDR_DEFAULT_FAVICON).ToImageSkia();
1612 }
1613
1614 bool ChromeContentBrowserClient::AllowAppCache(
1615     const GURL& manifest_url,
1616     const GURL& first_party,
1617     content::ResourceContext* context) {
1618   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1619   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1620   return io_data->GetCookieSettings()->
1621       IsSettingCookieAllowed(manifest_url, first_party);
1622 }
1623
1624 bool ChromeContentBrowserClient::AllowServiceWorker(
1625     const GURL& scope,
1626     const GURL& first_party_url,
1627     content::ResourceContext* context,
1628     int render_process_id,
1629     int render_frame_id) {
1630   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1631
1632 #if defined(ENABLE_EXTENSIONS)
1633   // Check if this is an extension-related service worker, and, if so, if it's
1634   // allowed (this can return false if, e.g., the extension is disabled).
1635   // If it's not allowed, return immediately. We deliberately do *not* report
1636   // to the TabSpecificContentSettings, since the service worker is blocked
1637   // because of the extension, rather than because of the user's content
1638   // settings.
1639   if (!ChromeContentBrowserClientExtensionsPart::AllowServiceWorker(
1640           scope, first_party_url, context, render_process_id,
1641           render_frame_id)) {
1642     return false;
1643   }
1644 #endif
1645
1646   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1647   bool allow = io_data->GetCookieSettings()->IsSettingCookieAllowed(
1648       scope, first_party_url);
1649
1650   // Record access to database for potential display in UI.
1651   // Only post the task if this is for a specific frame.
1652   if (render_process_id != -1 && render_frame_id != -1) {
1653     BrowserThread::PostTask(
1654         BrowserThread::UI, FROM_HERE,
1655         base::Bind(&TabSpecificContentSettings::ServiceWorkerAccessed,
1656                    render_process_id, render_frame_id, scope, !allow));
1657   }
1658   return allow;
1659 }
1660
1661 bool ChromeContentBrowserClient::AllowGetCookie(
1662     const GURL& url,
1663     const GURL& first_party,
1664     const net::CookieList& cookie_list,
1665     content::ResourceContext* context,
1666     int render_process_id,
1667     int render_frame_id) {
1668   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1669   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1670   bool allow = io_data->GetCookieSettings()->
1671       IsReadingCookieAllowed(url, first_party);
1672
1673   BrowserThread::PostTask(
1674       BrowserThread::UI, FROM_HERE,
1675       base::Bind(&TabSpecificContentSettings::CookiesRead, render_process_id,
1676                  render_frame_id, url, first_party, cookie_list, !allow));
1677   return allow;
1678 }
1679
1680 bool ChromeContentBrowserClient::AllowSetCookie(
1681     const GURL& url,
1682     const GURL& first_party,
1683     const std::string& cookie_line,
1684     content::ResourceContext* context,
1685     int render_process_id,
1686     int render_frame_id,
1687     net::CookieOptions* options) {
1688   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1689   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1690   content_settings::CookieSettings* cookie_settings =
1691       io_data->GetCookieSettings();
1692   bool allow = cookie_settings->IsSettingCookieAllowed(url, first_party);
1693
1694   BrowserThread::PostTask(
1695       BrowserThread::UI, FROM_HERE,
1696       base::Bind(&TabSpecificContentSettings::CookieChanged, render_process_id,
1697                  render_frame_id, url, first_party, cookie_line, *options,
1698                  !allow));
1699   return allow;
1700 }
1701
1702 bool ChromeContentBrowserClient::AllowSaveLocalState(
1703     content::ResourceContext* context) {
1704   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1705   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1706   content_settings::CookieSettings* cookie_settings =
1707       io_data->GetCookieSettings();
1708   ContentSetting setting = cookie_settings->GetDefaultCookieSetting(NULL);
1709
1710   // TODO(bauerb): Should we also disallow local state if the default is BLOCK?
1711   // Could we even support per-origin settings?
1712   return setting != CONTENT_SETTING_SESSION_ONLY;
1713 }
1714
1715 bool ChromeContentBrowserClient::AllowWorkerDatabase(
1716     const GURL& url,
1717     const base::string16& name,
1718     const base::string16& display_name,
1719     unsigned long estimated_size,
1720     content::ResourceContext* context,
1721     const std::vector<std::pair<int, int> >& render_frames) {
1722   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1723   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1724   content_settings::CookieSettings* cookie_settings =
1725       io_data->GetCookieSettings();
1726   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1727
1728   // Record access to database for potential display in UI.
1729   std::vector<std::pair<int, int> >::const_iterator i;
1730   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1731     BrowserThread::PostTask(
1732         BrowserThread::UI, FROM_HERE,
1733         base::Bind(&TabSpecificContentSettings::WebDatabaseAccessed,
1734                    i->first, i->second, url, name, display_name, !allow));
1735   }
1736
1737   return allow;
1738 }
1739
1740 void ChromeContentBrowserClient::AllowWorkerFileSystem(
1741     const GURL& url,
1742     content::ResourceContext* context,
1743     const std::vector<std::pair<int, int> >& render_frames,
1744     base::Callback<void(bool)> callback) {
1745   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1746   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1747   content_settings::CookieSettings* cookie_settings =
1748       io_data->GetCookieSettings();
1749   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1750
1751 #if defined(ENABLE_EXTENSIONS)
1752   GuestPermissionRequestHelper(url, render_frames, callback, allow);
1753 #else
1754   FileSystemAccessed(url, render_frames, callback, allow);
1755 #endif
1756 }
1757
1758 #if defined(ENABLE_EXTENSIONS)
1759 void ChromeContentBrowserClient::GuestPermissionRequestHelper(
1760     const GURL& url,
1761     const std::vector<std::pair<int, int> >& render_frames,
1762     base::Callback<void(bool)> callback,
1763     bool allow) {
1764   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1765   std::vector<std::pair<int, int> >::const_iterator i;
1766   std::map<int, int> process_map;
1767   std::map<int, int>::const_iterator it;
1768   bool has_web_view_guest = false;
1769   // Record access to file system for potential display in UI.
1770   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1771     if (process_map.find(i->first) != process_map.end())
1772       continue;
1773
1774     process_map.insert(std::pair<int, int>(i->first, i->second));
1775
1776     if (extensions::WebViewRendererState::GetInstance()->IsGuest(i->first))
1777       has_web_view_guest = true;
1778   }
1779   if (!has_web_view_guest) {
1780     FileSystemAccessed(url, render_frames, callback, allow);
1781     return;
1782   }
1783   DCHECK_EQ(1U, process_map.size());
1784   it = process_map.begin();
1785   BrowserThread::PostTask(
1786       BrowserThread::UI,
1787       FROM_HERE,
1788       base::Bind(&ChromeContentBrowserClient::
1789                   RequestFileSystemPermissionOnUIThread,
1790                   it->first,
1791                   it->second,
1792                   url,
1793                   allow,
1794                   base::Bind(&ChromeContentBrowserClient::FileSystemAccessed,
1795                             weak_factory_.GetWeakPtr(),
1796                             url,
1797                             render_frames,
1798                             callback)));
1799 }
1800
1801 void ChromeContentBrowserClient::RequestFileSystemPermissionOnUIThread(
1802     int render_process_id,
1803     int render_frame_id,
1804     const GURL& url,
1805     bool allowed_by_default,
1806     const base::Callback<void(bool)>& callback) {
1807   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1808   extensions::WebViewPermissionHelper* web_view_permission_helper =
1809       extensions::WebViewPermissionHelper::FromFrameID(
1810           render_process_id, render_frame_id);
1811   web_view_permission_helper->RequestFileSystemPermission(url,
1812                                                           allowed_by_default,
1813                                                           callback);
1814 }
1815 #endif
1816
1817 void ChromeContentBrowserClient::FileSystemAccessed(
1818     const GURL& url,
1819     const std::vector<std::pair<int, int> >& render_frames,
1820     base::Callback<void(bool)> callback,
1821     bool allow) {
1822   // Record access to file system for potential display in UI.
1823   std::vector<std::pair<int, int> >::const_iterator i;
1824   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1825     BrowserThread::PostTask(
1826         BrowserThread::UI,
1827         FROM_HERE,
1828         base::Bind(&TabSpecificContentSettings::FileSystemAccessed,
1829                    i->first, i->second, url, !allow));
1830   }
1831   callback.Run(allow);
1832 }
1833
1834 bool ChromeContentBrowserClient::AllowWorkerIndexedDB(
1835     const GURL& url,
1836     const base::string16& name,
1837     content::ResourceContext* context,
1838     const std::vector<std::pair<int, int> >& render_frames) {
1839   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1840   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1841   content_settings::CookieSettings* cookie_settings =
1842       io_data->GetCookieSettings();
1843   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1844
1845   // Record access to IndexedDB for potential display in UI.
1846   std::vector<std::pair<int, int> >::const_iterator i;
1847   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1848     BrowserThread::PostTask(
1849         BrowserThread::UI, FROM_HERE,
1850         base::Bind(&TabSpecificContentSettings::IndexedDBAccessed,
1851                    i->first, i->second, url, name, !allow));
1852   }
1853
1854   return allow;
1855 }
1856
1857 #if defined(ENABLE_WEBRTC)
1858 bool ChromeContentBrowserClient::AllowWebRTCIdentityCache(
1859     const GURL& url,
1860     const GURL& first_party_url,
1861     content::ResourceContext* context) {
1862   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1863   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1864   content_settings::CookieSettings* cookie_settings =
1865       io_data->GetCookieSettings();
1866   return cookie_settings->IsReadingCookieAllowed(url, first_party_url) &&
1867          cookie_settings->IsSettingCookieAllowed(url, first_party_url);
1868 }
1869 #endif  // defined(ENABLE_WEBRTC)
1870
1871 net::URLRequestContext*
1872 ChromeContentBrowserClient::OverrideRequestContextForURL(
1873     const GURL& url, content::ResourceContext* context) {
1874   DCHECK_CURRENTLY_ON(BrowserThread::IO);
1875 #if defined(ENABLE_EXTENSIONS)
1876   if (url.SchemeIs(extensions::kExtensionScheme)) {
1877     ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1878     return io_data->extensions_request_context();
1879   }
1880 #endif
1881
1882   return NULL;
1883 }
1884
1885 QuotaPermissionContext*
1886 ChromeContentBrowserClient::CreateQuotaPermissionContext() {
1887   return new ChromeQuotaPermissionContext();
1888 }
1889
1890 void ChromeContentBrowserClient::AllowCertificateError(
1891     int render_process_id,
1892     int render_frame_id,
1893     int cert_error,
1894     const net::SSLInfo& ssl_info,
1895     const GURL& request_url,
1896     ResourceType resource_type,
1897     bool overridable,
1898     bool strict_enforcement,
1899     bool expired_previous_decision,
1900     const base::Callback<void(bool)>& callback,
1901     content::CertificateRequestResultType* result) {
1902   if (resource_type != content::RESOURCE_TYPE_MAIN_FRAME) {
1903     // A sub-resource has a certificate error.  The user doesn't really
1904     // have a context for making the right decision, so block the
1905     // request hard, without an info bar to allow showing the insecure
1906     // content.
1907     *result = content::CERTIFICATE_REQUEST_RESULT_TYPE_DENY;
1908     return;
1909   }
1910
1911   // If the tab is being prerendered, cancel the prerender and the request.
1912   content::RenderFrameHost* render_frame_host =
1913       content::RenderFrameHost::FromID(render_process_id, render_frame_id);
1914   WebContents* tab = WebContents::FromRenderFrameHost(render_frame_host);
1915   if (!tab) {
1916     NOTREACHED();
1917     return;
1918   }
1919
1920   prerender::PrerenderContents* prerender_contents =
1921       prerender::PrerenderContents::FromWebContents(tab);
1922   if (prerender_contents) {
1923     prerender_contents->Destroy(prerender::FINAL_STATUS_SSL_ERROR);
1924     *result = content::CERTIFICATE_REQUEST_RESULT_TYPE_CANCEL;
1925     return;
1926   }
1927
1928   // Otherwise, display an SSL blocking page. The interstitial page takes
1929   // ownership of ssl_blocking_page.
1930   int options_mask = 0;
1931   if (overridable)
1932     options_mask |= SSLBlockingPage::OVERRIDABLE;
1933   if (strict_enforcement)
1934     options_mask |= SSLBlockingPage::STRICT_ENFORCEMENT;
1935   if (expired_previous_decision)
1936     options_mask |= SSLBlockingPage::EXPIRED_BUT_PREVIOUSLY_ALLOWED;
1937
1938   SafeBrowsingService* safe_browsing_service =
1939       g_browser_process->safe_browsing_service();
1940   scoped_ptr<SafeBrowsingSSLCertReporter> cert_reporter(
1941       new SafeBrowsingSSLCertReporter(safe_browsing_service
1942                                           ? safe_browsing_service->ui_manager()
1943                                           : nullptr));
1944   SSLErrorHandler::HandleSSLError(tab, cert_error, ssl_info, request_url,
1945                                   options_mask, cert_reporter.Pass(), callback);
1946 }
1947
1948 void ChromeContentBrowserClient::SelectClientCertificate(
1949     content::WebContents* web_contents,
1950     net::SSLCertRequestInfo* cert_request_info,
1951     scoped_ptr<content::ClientCertificateDelegate> delegate) {
1952   prerender::PrerenderContents* prerender_contents =
1953       prerender::PrerenderContents::FromWebContents(web_contents);
1954   if (prerender_contents) {
1955     prerender_contents->Destroy(
1956         prerender::FINAL_STATUS_SSL_CLIENT_CERTIFICATE_REQUESTED);
1957     return;
1958   }
1959
1960   GURL requesting_url("https://" + cert_request_info->host_and_port.ToString());
1961   DCHECK(requesting_url.is_valid())
1962       << "Invalid URL string: https://"
1963       << cert_request_info->host_and_port.ToString();
1964
1965   Profile* profile =
1966       Profile::FromBrowserContext(web_contents->GetBrowserContext());
1967   scoped_ptr<base::Value> filter =
1968       HostContentSettingsMapFactory::GetForProfile(profile)->GetWebsiteSetting(
1969           requesting_url,
1970           requesting_url,
1971           CONTENT_SETTINGS_TYPE_AUTO_SELECT_CERTIFICATE,
1972           std::string(),
1973           NULL);
1974
1975   if (filter.get()) {
1976     // Try to automatically select a client certificate.
1977     if (filter->IsType(base::Value::TYPE_DICTIONARY)) {
1978       base::DictionaryValue* filter_dict =
1979           static_cast<base::DictionaryValue*>(filter.get());
1980
1981       const std::vector<scoped_refptr<net::X509Certificate> >&
1982           all_client_certs = cert_request_info->client_certs;
1983       for (size_t i = 0; i < all_client_certs.size(); ++i) {
1984         if (CertMatchesFilter(*all_client_certs[i].get(), *filter_dict)) {
1985           // Use the first certificate that is matched by the filter.
1986           delegate->ContinueWithCertificate(all_client_certs[i].get());
1987           return;
1988         }
1989       }
1990     } else {
1991       NOTREACHED();
1992     }
1993   }
1994
1995   chrome::ShowSSLClientCertificateSelector(web_contents, cert_request_info,
1996                                            delegate.Pass());
1997 }
1998
1999 void ChromeContentBrowserClient::AddCertificate(
2000     net::CertificateMimeType cert_type,
2001     const void* cert_data,
2002     size_t cert_size,
2003     int render_process_id,
2004     int render_frame_id) {
2005   chrome::SSLAddCertificate(cert_type, cert_data, cert_size,
2006                             render_process_id, render_frame_id);
2007 }
2008
2009 content::MediaObserver* ChromeContentBrowserClient::GetMediaObserver() {
2010   return MediaCaptureDevicesDispatcher::GetInstance();
2011 }
2012
2013 content::PlatformNotificationService*
2014 ChromeContentBrowserClient::GetPlatformNotificationService() {
2015 #if defined(ENABLE_NOTIFICATIONS)
2016   return PlatformNotificationServiceImpl::GetInstance();
2017 #else
2018   NOTIMPLEMENTED();
2019   return NULL;
2020 #endif
2021 }
2022
2023 bool ChromeContentBrowserClient::CanCreateWindow(
2024     const GURL& opener_url,
2025     const GURL& opener_top_level_frame_url,
2026     const GURL& source_origin,
2027     WindowContainerType container_type,
2028     const GURL& target_url,
2029     const content::Referrer& referrer,
2030     WindowOpenDisposition disposition,
2031     const WebWindowFeatures& features,
2032     bool user_gesture,
2033     bool opener_suppressed,
2034     content::ResourceContext* context,
2035     int render_process_id,
2036     int opener_render_view_id,
2037     int opener_render_frame_id,
2038     bool* no_javascript_access) {
2039   DCHECK_CURRENTLY_ON(BrowserThread::IO);
2040
2041   *no_javascript_access = false;
2042
2043   // If the opener is trying to create a background window but doesn't have
2044   // the appropriate permission, fail the attempt.
2045   if (container_type == WINDOW_CONTAINER_TYPE_BACKGROUND) {
2046 #if defined(ENABLE_EXTENSIONS)
2047     ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
2048     InfoMap* map = io_data->GetExtensionInfoMap();
2049     if (!map->SecurityOriginHasAPIPermission(
2050             source_origin,
2051             render_process_id,
2052             APIPermission::kBackground)) {
2053       return false;
2054     }
2055
2056     // Note: this use of GetExtensionOrAppByURL is safe but imperfect.  It may
2057     // return a recently installed Extension even if this CanCreateWindow call
2058     // was made by an old copy of the page in a normal web process.  That's ok,
2059     // because the permission check above would have caused an early return
2060     // already. We must use the full URL to find hosted apps, though, and not
2061     // just the origin.
2062     const Extension* extension =
2063         map->extensions().GetExtensionOrAppByURL(opener_url);
2064     if (extension && !extensions::BackgroundInfo::AllowJSAccess(extension))
2065       *no_javascript_access = true;
2066 #endif
2067
2068     return true;
2069   }
2070
2071 #if defined(ENABLE_EXTENSIONS)
2072   if (extensions::WebViewRendererState::GetInstance()->IsGuest(
2073       render_process_id))
2074     return true;
2075 #endif
2076
2077   HostContentSettingsMap* content_settings =
2078       ProfileIOData::FromResourceContext(context)->GetHostContentSettingsMap();
2079   BlockedWindowParams blocked_params(target_url,
2080                                      referrer,
2081                                      disposition,
2082                                      features,
2083                                      user_gesture,
2084                                      opener_suppressed,
2085                                      render_process_id,
2086                                      opener_render_frame_id);
2087
2088   if (!user_gesture &&
2089       !base::CommandLine::ForCurrentProcess()->HasSwitch(
2090           switches::kDisablePopupBlocking)) {
2091     if (content_settings->GetContentSetting(opener_top_level_frame_url,
2092                                             opener_top_level_frame_url,
2093                                             CONTENT_SETTINGS_TYPE_POPUPS,
2094                                             std::string()) !=
2095         CONTENT_SETTING_ALLOW) {
2096       BrowserThread::PostTask(BrowserThread::UI,
2097                               FROM_HERE,
2098                               base::Bind(&HandleBlockedPopupOnUIThread,
2099                                          blocked_params));
2100       return false;
2101     }
2102   }
2103
2104 #if defined(OS_ANDROID)
2105   if (SingleTabModeTabHelper::IsRegistered(render_process_id,
2106                                            opener_render_view_id)) {
2107     BrowserThread::PostTask(BrowserThread::UI,
2108                             FROM_HERE,
2109                             base::Bind(&HandleSingleTabModeBlockOnUIThread,
2110                                        blocked_params));
2111     return false;
2112   }
2113 #endif
2114
2115   return true;
2116 }
2117
2118 void ChromeContentBrowserClient::ResourceDispatcherHostCreated() {
2119   DCHECK_CURRENTLY_ON(BrowserThread::UI);
2120   return g_browser_process->ResourceDispatcherHostCreated();
2121 }
2122
2123 content::SpeechRecognitionManagerDelegate*
2124     ChromeContentBrowserClient::CreateSpeechRecognitionManagerDelegate() {
2125   return new speech::ChromeSpeechRecognitionManagerDelegate();
2126 }
2127
2128 net::NetLog* ChromeContentBrowserClient::GetNetLog() {
2129   return g_browser_process->net_log();
2130 }
2131
2132 AccessTokenStore* ChromeContentBrowserClient::CreateAccessTokenStore() {
2133   return new ChromeAccessTokenStore();
2134 }
2135
2136 bool ChromeContentBrowserClient::IsFastShutdownPossible() {
2137   return true;
2138 }
2139
2140 void ChromeContentBrowserClient::OverrideWebkitPrefs(
2141     RenderViewHost* rvh, WebPreferences* web_prefs) {
2142   Profile* profile = Profile::FromBrowserContext(
2143       rvh->GetProcess()->GetBrowserContext());
2144   PrefService* prefs = profile->GetPrefs();
2145
2146   // Fill per-script font preferences. These are not registered on Android
2147   // - http://crbug.com/308033.
2148 #if !defined(OS_ANDROID)
2149   FontFamilyCache::FillFontFamilyMap(profile,
2150                                      prefs::kWebKitStandardFontFamilyMap,
2151                                      &web_prefs->standard_font_family_map);
2152   FontFamilyCache::FillFontFamilyMap(profile,
2153                                      prefs::kWebKitFixedFontFamilyMap,
2154                                      &web_prefs->fixed_font_family_map);
2155   FontFamilyCache::FillFontFamilyMap(profile,
2156                                      prefs::kWebKitSerifFontFamilyMap,
2157                                      &web_prefs->serif_font_family_map);
2158   FontFamilyCache::FillFontFamilyMap(profile,
2159                                      prefs::kWebKitSansSerifFontFamilyMap,
2160                                      &web_prefs->sans_serif_font_family_map);
2161   FontFamilyCache::FillFontFamilyMap(profile,
2162                                      prefs::kWebKitCursiveFontFamilyMap,
2163                                      &web_prefs->cursive_font_family_map);
2164   FontFamilyCache::FillFontFamilyMap(profile,
2165                                      prefs::kWebKitFantasyFontFamilyMap,
2166                                      &web_prefs->fantasy_font_family_map);
2167   FontFamilyCache::FillFontFamilyMap(profile,
2168                                      prefs::kWebKitPictographFontFamilyMap,
2169                                      &web_prefs->pictograph_font_family_map);
2170 #endif
2171
2172   web_prefs->default_font_size =
2173       prefs->GetInteger(prefs::kWebKitDefaultFontSize);
2174   web_prefs->default_fixed_font_size =
2175       prefs->GetInteger(prefs::kWebKitDefaultFixedFontSize);
2176   web_prefs->minimum_font_size =
2177       prefs->GetInteger(prefs::kWebKitMinimumFontSize);
2178   web_prefs->minimum_logical_font_size =
2179       prefs->GetInteger(prefs::kWebKitMinimumLogicalFontSize);
2180
2181   web_prefs->default_encoding = prefs->GetString(prefs::kDefaultCharset);
2182
2183   web_prefs->javascript_can_open_windows_automatically =
2184       prefs->GetBoolean(prefs::kWebKitJavascriptCanOpenWindowsAutomatically);
2185   web_prefs->dom_paste_enabled =
2186       prefs->GetBoolean(prefs::kWebKitDomPasteEnabled);
2187   web_prefs->tabs_to_links = prefs->GetBoolean(prefs::kWebkitTabsToLinks);
2188
2189   if (!prefs->GetBoolean(prefs::kWebKitJavascriptEnabled))
2190     web_prefs->javascript_enabled = false;
2191   if (!prefs->GetBoolean(prefs::kWebKitWebSecurityEnabled))
2192     web_prefs->web_security_enabled = false;
2193   if (!prefs->GetBoolean(prefs::kWebKitPluginsEnabled))
2194     web_prefs->plugins_enabled = false;
2195   web_prefs->loads_images_automatically =
2196       prefs->GetBoolean(prefs::kWebKitLoadsImagesAutomatically);
2197
2198   if (prefs->GetBoolean(prefs::kDisable3DAPIs))
2199     web_prefs->experimental_webgl_enabled = false;
2200
2201   web_prefs->allow_displaying_insecure_content =
2202       prefs->GetBoolean(prefs::kWebKitAllowDisplayingInsecureContent);
2203   web_prefs->allow_running_insecure_content =
2204       prefs->GetBoolean(prefs::kWebKitAllowRunningInsecureContent);
2205 #if defined(OS_ANDROID)
2206   web_prefs->font_scale_factor =
2207       static_cast<float>(prefs->GetDouble(prefs::kWebKitFontScaleFactor));
2208   web_prefs->device_scale_adjustment = GetDeviceScaleAdjustment();
2209   web_prefs->force_enable_zoom =
2210       prefs->GetBoolean(prefs::kWebKitForceEnableZoom);
2211 #endif
2212
2213 #if defined(OS_ANDROID)
2214   web_prefs->password_echo_enabled =
2215       prefs->GetBoolean(prefs::kWebKitPasswordEchoEnabled);
2216 #else
2217   web_prefs->password_echo_enabled = browser_defaults::kPasswordEchoEnabled;
2218 #endif
2219
2220   web_prefs->asynchronous_spell_checking_enabled = true;
2221   web_prefs->unified_textchecker_enabled = true;
2222
2223   web_prefs->uses_universal_detector =
2224       prefs->GetBoolean(prefs::kWebKitUsesUniversalDetector);
2225   web_prefs->text_areas_are_resizable =
2226       prefs->GetBoolean(prefs::kWebKitTextAreasAreResizable);
2227   web_prefs->hyperlink_auditing_enabled =
2228       prefs->GetBoolean(prefs::kEnableHyperlinkAuditing);
2229
2230 #if defined(ENABLE_EXTENSIONS)
2231   std::string image_animation_policy =
2232       prefs->GetString(prefs::kAnimationPolicy);
2233   if (image_animation_policy == kAnimationPolicyOnce)
2234     web_prefs->animation_policy =
2235         content::IMAGE_ANIMATION_POLICY_ANIMATION_ONCE;
2236   else if (image_animation_policy == kAnimationPolicyNone)
2237     web_prefs->animation_policy = content::IMAGE_ANIMATION_POLICY_NO_ANIMATION;
2238   else
2239     web_prefs->animation_policy = content::IMAGE_ANIMATION_POLICY_ALLOWED;
2240 #endif
2241
2242   // Make sure we will set the default_encoding with canonical encoding name.
2243   web_prefs->default_encoding =
2244       CharacterEncoding::GetCanonicalEncodingNameByAliasName(
2245           web_prefs->default_encoding);
2246   if (web_prefs->default_encoding.empty()) {
2247     prefs->ClearPref(prefs::kDefaultCharset);
2248     web_prefs->default_encoding = prefs->GetString(prefs::kDefaultCharset);
2249   }
2250   DCHECK(!web_prefs->default_encoding.empty());
2251
2252   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
2253           switches::kEnablePotentiallyAnnoyingSecurityFeatures)) {
2254     web_prefs->disable_reading_from_canvas = true;
2255     web_prefs->strict_mixed_content_checking = true;
2256     web_prefs->strict_powerful_feature_restrictions = true;
2257   }
2258
2259   for (size_t i = 0; i < extra_parts_.size(); ++i)
2260     extra_parts_[i]->OverrideWebkitPrefs(rvh, web_prefs);
2261 }
2262
2263 void ChromeContentBrowserClient::BrowserURLHandlerCreated(
2264     BrowserURLHandler* handler) {
2265   for (size_t i = 0; i < extra_parts_.size(); ++i)
2266     extra_parts_[i]->BrowserURLHandlerCreated(handler);
2267
2268   // about: handler. Must come before chrome: handler, since it will
2269   // rewrite about: urls to chrome: URLs and then expect chrome: to
2270   // actually handle them.  Also relies on a preliminary fixup phase.
2271   handler->SetFixupHandler(&FixupBrowserAboutURL);
2272   handler->AddHandlerPair(&WillHandleBrowserAboutURL,
2273                           BrowserURLHandler::null_handler());
2274
2275 #if defined(OS_ANDROID)
2276   // Handler to rewrite chrome://newtab on Android.
2277   handler->AddHandlerPair(&chrome::android::HandleAndroidNativePageURL,
2278                           BrowserURLHandler::null_handler());
2279 #else
2280   // Handler to rewrite chrome://newtab for InstantExtended.
2281   handler->AddHandlerPair(&search::HandleNewTabURLRewrite,
2282                           &search::HandleNewTabURLReverseRewrite);
2283 #endif
2284
2285   // chrome: & friends.
2286   handler->AddHandlerPair(&HandleWebUI, &HandleWebUIReverse);
2287 }
2288
2289 void ChromeContentBrowserClient::ClearCache(RenderFrameHost* rfh) {
2290   Profile* profile = Profile::FromBrowserContext(
2291       rfh->GetSiteInstance()->GetProcess()->GetBrowserContext());
2292   BrowsingDataRemover* remover =
2293       BrowsingDataRemover::CreateForUnboundedRange(profile);
2294   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
2295                   BrowsingDataHelper::UNPROTECTED_WEB);
2296   // BrowsingDataRemover takes care of deleting itself when done.
2297 }
2298
2299 void ChromeContentBrowserClient::ClearCookies(RenderFrameHost* rfh) {
2300   Profile* profile = Profile::FromBrowserContext(
2301       rfh->GetSiteInstance()->GetProcess()->GetBrowserContext());
2302   BrowsingDataRemover* remover =
2303       BrowsingDataRemover::CreateForUnboundedRange(profile);
2304   int remove_mask = BrowsingDataRemover::REMOVE_SITE_DATA;
2305   remover->Remove(remove_mask, BrowsingDataHelper::UNPROTECTED_WEB);
2306   // BrowsingDataRemover takes care of deleting itself when done.
2307 }
2308
2309 base::FilePath ChromeContentBrowserClient::GetDefaultDownloadDirectory() {
2310   return DownloadPrefs::GetDefaultDownloadDirectory();
2311 }
2312
2313 std::string ChromeContentBrowserClient::GetDefaultDownloadName() {
2314   return l10n_util::GetStringUTF8(IDS_DEFAULT_DOWNLOAD_FILENAME);
2315 }
2316
2317 base::FilePath ChromeContentBrowserClient::GetShaderDiskCacheDirectory() {
2318   base::FilePath user_data_dir;
2319   PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
2320   DCHECK(!user_data_dir.empty());
2321   return user_data_dir.Append(FILE_PATH_LITERAL("ShaderCache"));
2322 }
2323
2324 void ChromeContentBrowserClient::DidCreatePpapiPlugin(
2325     content::BrowserPpapiHost* browser_host) {
2326 #if defined(ENABLE_PLUGINS)
2327   ChromeContentBrowserClientPluginsPart::DidCreatePpapiPlugin(browser_host);
2328 #endif
2329 }
2330
2331 content::BrowserPpapiHost*
2332     ChromeContentBrowserClient::GetExternalBrowserPpapiHost(
2333         int plugin_process_id) {
2334 #if !defined(DISABLE_NACL)
2335   content::BrowserChildProcessHostIterator iter(PROCESS_TYPE_NACL_LOADER);
2336   while (!iter.Done()) {
2337     nacl::NaClProcessHost* host = static_cast<nacl::NaClProcessHost*>(
2338         iter.GetDelegate());
2339     if (host->process() &&
2340         host->process()->GetData().id == plugin_process_id) {
2341       // Found the plugin.
2342       return host->browser_ppapi_host();
2343     }
2344     ++iter;
2345   }
2346 #endif
2347   return NULL;
2348 }
2349
2350 bool ChromeContentBrowserClient::AllowPepperSocketAPI(
2351     content::BrowserContext* browser_context,
2352     const GURL& url,
2353     bool private_api,
2354     const content::SocketPermissionRequest* params) {
2355 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
2356   return ChromeContentBrowserClientPluginsPart::AllowPepperSocketAPI(
2357       browser_context, url, private_api, params, allowed_socket_origins_);
2358 #else
2359   return false;
2360 #endif
2361 }
2362
2363 ui::SelectFilePolicy* ChromeContentBrowserClient::CreateSelectFilePolicy(
2364     WebContents* web_contents) {
2365   return new ChromeSelectFilePolicy(web_contents);
2366 }
2367
2368 void ChromeContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
2369     std::vector<std::string>* additional_allowed_schemes) {
2370   ContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
2371       additional_allowed_schemes);
2372   additional_allowed_schemes->push_back(content::kChromeDevToolsScheme);
2373   additional_allowed_schemes->push_back(content::kChromeUIScheme);
2374   for (size_t i = 0; i < extra_parts_.size(); ++i) {
2375     extra_parts_[i]->GetAdditionalAllowedSchemesForFileSystem(
2376         additional_allowed_schemes);
2377   }
2378 }
2379
2380 void ChromeContentBrowserClient::GetURLRequestAutoMountHandlers(
2381     std::vector<storage::URLRequestAutoMountHandler>* handlers) {
2382   for (size_t i = 0; i < extra_parts_.size(); ++i)
2383     extra_parts_[i]->GetURLRequestAutoMountHandlers(handlers);
2384 }
2385
2386 void ChromeContentBrowserClient::GetAdditionalFileSystemBackends(
2387     content::BrowserContext* browser_context,
2388     const base::FilePath& storage_partition_path,
2389     ScopedVector<storage::FileSystemBackend>* additional_backends) {
2390 #if defined(OS_CHROMEOS)
2391   storage::ExternalMountPoints* external_mount_points =
2392       content::BrowserContext::GetMountPoints(browser_context);
2393   DCHECK(external_mount_points);
2394   chromeos::FileSystemBackend* backend = new chromeos::FileSystemBackend(
2395       new drive::FileSystemBackendDelegate,
2396       new chromeos::file_system_provider::BackendDelegate,
2397       new chromeos::MTPFileSystemBackendDelegate(storage_partition_path),
2398       external_mount_points,
2399       storage::ExternalMountPoints::GetSystemInstance());
2400   backend->AddSystemMountPoints();
2401   DCHECK(backend->CanHandleType(storage::kFileSystemTypeExternal));
2402   additional_backends->push_back(backend);
2403 #endif
2404
2405   for (size_t i = 0; i < extra_parts_.size(); ++i) {
2406     extra_parts_[i]->GetAdditionalFileSystemBackends(
2407         browser_context, storage_partition_path, additional_backends);
2408   }
2409 }
2410
2411 #if defined(OS_ANDROID)
2412 void ChromeContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
2413     const base::CommandLine& command_line,
2414     int child_process_id,
2415     FileDescriptorInfo* mappings,
2416     std::map<int, base::MemoryMappedFile::Region>* regions) {
2417   int fd = ui::GetMainAndroidPackFd(
2418       &(*regions)[kAndroidUIResourcesPakDescriptor]);
2419   mappings->Share(kAndroidUIResourcesPakDescriptor, fd);
2420
2421   fd = ui::GetCommonResourcesPackFd(
2422       &(*regions)[kAndroidChrome100PercentPakDescriptor]);
2423   mappings->Share(kAndroidChrome100PercentPakDescriptor, fd);
2424
2425   fd = ui::GetLocalePackFd(&(*regions)[kAndroidLocalePakDescriptor]);
2426   mappings->Share(kAndroidLocalePakDescriptor, fd);
2427
2428   if (breakpad::IsCrashReporterEnabled()) {
2429     base::File file =
2430         breakpad::CrashDumpManager::GetInstance()->CreateMinidumpFile(
2431             child_process_id);
2432     if (file.IsValid()) {
2433       mappings->Transfer(kAndroidMinidumpDescriptor,
2434                          base::ScopedFD(file.TakePlatformFile()));
2435     } else {
2436       LOG(ERROR) << "Failed to create file for minidump, crash reporting will "
2437                  "be disabled for this process.";
2438     }
2439   }
2440
2441   base::FilePath app_data_path;
2442   PathService::Get(base::DIR_ANDROID_APP_DATA, &app_data_path);
2443   DCHECK(!app_data_path.empty());
2444 }
2445 #elif defined(OS_POSIX) && !defined(OS_MACOSX)
2446 void ChromeContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
2447     const base::CommandLine& command_line,
2448     int child_process_id,
2449     FileDescriptorInfo* mappings) {
2450   int crash_signal_fd = GetCrashSignalFD(command_line);
2451   if (crash_signal_fd >= 0) {
2452     mappings->Share(kCrashDumpSignal, crash_signal_fd);
2453   }
2454 }
2455 #endif  // defined(OS_ANDROID)
2456
2457 #if defined(OS_WIN)
2458 const wchar_t* ChromeContentBrowserClient::GetResourceDllName() {
2459   return chrome::kBrowserResourcesDll;
2460 }
2461
2462 base::string16 ChromeContentBrowserClient::GetAppContainerSidForSandboxType(
2463     int sandbox_type) const {
2464   base::string16 sid;
2465
2466 #if defined(GOOGLE_CHROME_BUILD)
2467   const version_info::Channel channel = chrome::GetChannel();
2468
2469   // It's possible to have a SxS installation running at the same time as a
2470   // non-SxS so isolate them from each other.
2471   if (channel == version_info::Channel::CANARY) {
2472     sid.assign(
2473         L"S-1-15-2-3251537155-1984446955-2931258699-841473695-1938553385-"
2474         L"924012150-");
2475   } else {
2476     sid.assign(
2477         L"S-1-15-2-3251537155-1984446955-2931258699-841473695-1938553385-"
2478         L"924012149-");
2479   }
2480 #else
2481   sid.assign(
2482       L"S-1-15-2-3251537155-1984446955-2931258699-841473695-1938553385-"
2483       L"924012148-");
2484 #endif
2485
2486   // TODO(wfh): Add support for more process types here. crbug.com/499523
2487   switch (sandbox_type) {
2488     case content::SANDBOX_TYPE_RENDERER:
2489       return sid + L"129201922";
2490     case content::SANDBOX_TYPE_UTILITY:
2491       return base::string16();
2492     case content::SANDBOX_TYPE_GPU:
2493       return base::string16();
2494     case content::SANDBOX_TYPE_PPAPI:
2495       return sid + L"129201925";
2496 #if !defined(DISABLE_NACL)
2497     case PROCESS_TYPE_NACL_LOADER:
2498       return base::string16();
2499     case PROCESS_TYPE_NACL_BROKER:
2500       return base::string16();
2501 #endif
2502   }
2503
2504   // Should never reach here.
2505   CHECK(0);
2506   return base::string16();
2507 }
2508
2509 void ChromeContentBrowserClient::PreSpawnRenderer(
2510     sandbox::TargetPolicy* policy,
2511     bool* success) {
2512   // This code is duplicated in nacl_exe_win_64.cc.
2513   // Allow the server side of a pipe restricted to the "chrome.nacl."
2514   // namespace so that it cannot impersonate other system or other chrome
2515   // service pipes.
2516   sandbox::ResultCode result = policy->AddRule(
2517       sandbox::TargetPolicy::SUBSYS_NAMED_PIPES,
2518       sandbox::TargetPolicy::NAMEDPIPES_ALLOW_ANY,
2519       L"\\\\.\\pipe\\chrome.nacl.*");
2520   if (result != sandbox::SBOX_ALL_OK) {
2521     *success = false;
2522     return;
2523   }
2524
2525   // Renderers need to send named pipe handles and shared memory
2526   // segment handles to NaCl loader processes.
2527   result = policy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
2528                            sandbox::TargetPolicy::HANDLES_DUP_ANY,
2529                            L"File");
2530   if (result != sandbox::SBOX_ALL_OK) {
2531     *success = false;
2532     return;
2533   }
2534 }
2535 #endif
2536
2537 void ChromeContentBrowserClient::RegisterFrameMojoShellServices(
2538     content::ServiceRegistry* registry,
2539     content::RenderFrameHost* render_frame_host) {
2540 #if defined(OS_CHROMEOS)
2541   registry->AddService(
2542       base::Bind(&chromeos::attestation::PlatformVerificationImpl::Create,
2543                  render_frame_host));
2544 #endif
2545 #if !defined(OS_ANDROID) && !defined(OS_IOS)
2546   registry->AddService(
2547       base::Bind(&WebUSBPermissionProvider::Create, render_frame_host));
2548 #endif
2549 }
2550
2551 void ChromeContentBrowserClient::RegisterInProcessMojoApplications(
2552     StaticMojoApplicationMap* apps) {
2553 #if !defined(OS_ANDROID) && !defined(OS_IOS)
2554   apps->insert(std::make_pair(GURL(device::kDevicesMojoAppUrl),
2555                               base::Bind(&device::DevicesAppFactory::CreateApp,
2556                                          base::ThreadTaskRunnerHandle::Get())));
2557 #endif
2558 }
2559
2560 void ChromeContentBrowserClient::OpenURL(
2561     content::BrowserContext* browser_context,
2562     const content::OpenURLParams& params,
2563     const base::Callback<void(content::WebContents*)>& callback) {
2564   DCHECK_CURRENTLY_ON(BrowserThread::UI);
2565
2566 #if !defined(OS_ANDROID) && !defined(OS_IOS)
2567   chrome::NavigateParams nav_params(
2568       Profile::FromBrowserContext(browser_context),
2569       params.url,
2570       params.transition);
2571   FillNavigateParamsFromOpenURLParams(&nav_params, params);
2572   nav_params.user_gesture = params.user_gesture;
2573
2574   Navigate(&nav_params);
2575   callback.Run(nav_params.target_contents);
2576 #elif defined(OS_ANDROID)
2577   service_tab_launcher::ServiceTabLauncher::GetInstance()->LaunchTab(
2578       browser_context, params, callback);
2579 #else
2580   NOTIMPLEMENTED();
2581 #endif
2582 }
2583
2584 content::PresentationServiceDelegate*
2585 ChromeContentBrowserClient::GetPresentationServiceDelegate(
2586       content::WebContents* web_contents) {
2587 #if defined(ENABLE_MEDIA_ROUTER)
2588   if (switches::MediaRouterEnabled() &&
2589       !web_contents->GetBrowserContext()->IsOffTheRecord()) {
2590     return media_router::PresentationServiceDelegateImpl::
2591         GetOrCreateForWebContents(web_contents);
2592   }
2593 #endif
2594   return nullptr;
2595 }
2596
2597 void ChromeContentBrowserClient::RecordURLMetric(const std::string& metric,
2598                                                  const GURL& url) {
2599   if (url.is_valid()) {
2600     rappor::SampleDomainAndRegistryFromGURL(g_browser_process->rappor_service(),
2601                                             metric, url);
2602   }
2603 }
2604
2605 ScopedVector<content::NavigationThrottle>
2606 ChromeContentBrowserClient::CreateThrottlesForNavigation(
2607     content::NavigationHandle* handle) {
2608   ScopedVector<content::NavigationThrottle> throttles;
2609 #if defined(OS_ANDROID)
2610   // TODO(davidben): This is insufficient to integrate with prerender properly.
2611   // https://crbug.com/370595
2612   prerender::PrerenderContents* prerender_contents =
2613       prerender::PrerenderContents::FromWebContents(handle->GetWebContents());
2614   if (!prerender_contents && handle->IsInMainFrame()) {
2615     throttles.push_back(
2616         navigation_interception::InterceptNavigationDelegate::CreateThrottleFor(
2617             handle)
2618             .Pass());
2619   }
2620 #else
2621   if (handle->IsInMainFrame()) {
2622     // Redirect some navigations to apps that have registered matching URL
2623     // handlers ('url_handlers' in the manifest).
2624     scoped_ptr<content::NavigationThrottle> url_to_app_throttle =
2625         AppUrlRedirector::MaybeCreateThrottleFor(handle);
2626     if (url_to_app_throttle)
2627       throttles.push_back(url_to_app_throttle.Pass());
2628   }
2629 #endif
2630   return throttles.Pass();
2631 }
2632
2633 content::DevToolsManagerDelegate*
2634 ChromeContentBrowserClient::GetDevToolsManagerDelegate() {
2635   return new ChromeDevToolsManagerDelegate();
2636 }
2637
2638 content::TracingDelegate* ChromeContentBrowserClient::GetTracingDelegate() {
2639 #if !defined(OS_ANDROID)
2640   return new ChromeTracingDelegate();
2641 #else
2642   return nullptr;
2643 #endif
2644 }
2645
2646 bool ChromeContentBrowserClient::IsPluginAllowedToCallRequestOSFileHandle(
2647     content::BrowserContext* browser_context,
2648     const GURL& url) {
2649 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
2650   return ChromeContentBrowserClientPluginsPart::
2651       IsPluginAllowedToCallRequestOSFileHandle(browser_context, url,
2652                                                allowed_file_handle_origins_);
2653 #else
2654   return false;
2655 #endif
2656 }
2657
2658 bool ChromeContentBrowserClient::IsPluginAllowedToUseDevChannelAPIs(
2659     content::BrowserContext* browser_context,
2660     const GURL& url) {
2661 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
2662   return ChromeContentBrowserClientPluginsPart::
2663       IsPluginAllowedToUseDevChannelAPIs(browser_context, url,
2664                                          allowed_dev_channel_origins_);
2665 #else
2666   return false;
2667 #endif
2668 }
2669
2670 void ChromeContentBrowserClient::OverridePageVisibilityState(
2671       RenderFrameHost* render_frame_host,
2672       blink::WebPageVisibilityState* visibility_state) {
2673   DCHECK_CURRENTLY_ON(BrowserThread::UI);
2674
2675   WebContents* web_contents =
2676       WebContents::FromRenderFrameHost(render_frame_host);
2677   DCHECK(web_contents);
2678
2679   Profile* profile =
2680       Profile::FromBrowserContext(web_contents->GetBrowserContext());
2681   prerender::PrerenderManager* prerender_manager =
2682       prerender::PrerenderManagerFactory::GetForProfile(profile);
2683   if (prerender_manager &&
2684       prerender_manager->IsWebContentsPrerendering(web_contents, nullptr)) {
2685     *visibility_state = blink::WebPageVisibilityStatePrerender;
2686   }
2687 }
2688
2689 #if defined(ENABLE_WEBRTC)
2690 void ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch(
2691     base::CommandLine* to_command_line,
2692     const base::CommandLine& from_command_line,
2693     version_info::Channel channel) {
2694 #if defined(OS_ANDROID)
2695   const version_info::Channel kMaxDisableEncryptionChannel =
2696       version_info::Channel::BETA;
2697 #else
2698   const version_info::Channel kMaxDisableEncryptionChannel =
2699       version_info::Channel::DEV;
2700 #endif
2701   if (channel <= kMaxDisableEncryptionChannel) {
2702     static const char* const kWebRtcDevSwitchNames[] = {
2703       switches::kDisableWebRtcEncryption,
2704     };
2705     to_command_line->CopySwitchesFrom(from_command_line,
2706                                       kWebRtcDevSwitchNames,
2707                                       arraysize(kWebRtcDevSwitchNames));
2708   }
2709 }
2710 #endif  // defined(ENABLE_WEBRTC)