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