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