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 <set>
   8 #include <utility>
   9 #include <vector>
  10
  11 #include "base/bind.h"
  12 #include "base/command_line.h"
  13 #include "base/files/scoped_file.h"
  14 #include "base/lazy_instance.h"
  15 #include "base/path_service.h"
  16 #include "base/prefs/pref_service.h"
  17 #include "base/prefs/scoped_user_pref_update.h"
  18 #include "base/strings/string_number_conversions.h"
  19 #include "base/strings/utf_string_conversions.h"
  20 #include "base/threading/sequenced_worker_pool.h"
  21 #include "chrome/browser/browser_about_handler.h"
  22 #include "chrome/browser/browser_process.h"
  23 #include "chrome/browser/browser_shutdown.h"
  24 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  25 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  26 #include "chrome/browser/character_encoding.h"
  27 #include "chrome/browser/chrome_content_browser_client_parts.h"
  28 #include "chrome/browser/chrome_net_benchmarking_message_filter.h"
  29 #include "chrome/browser/chrome_quota_permission_context.h"
  30 #include "chrome/browser/content_settings/content_settings_utils.h"
  31 #include "chrome/browser/content_settings/cookie_settings.h"
  32 #include "chrome/browser/content_settings/host_content_settings_map.h"
  33 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
  34 #include "chrome/browser/defaults.h"
  35 #include "chrome/browser/download/download_prefs.h"
  36 #include "chrome/browser/font_family_cache.h"
  37 #include "chrome/browser/geolocation/chrome_access_token_store.h"
  38 #include "chrome/browser/geolocation/geolocation_permission_context.h"
  39 #include "chrome/browser/geolocation/geolocation_permission_context_factory.h"
  40 #include "chrome/browser/media/cast_transport_host_filter.h"
  41 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  42 #include "chrome/browser/media/midi_permission_context.h"
  43 #include "chrome/browser/media/midi_permission_context_factory.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/notifications/desktop_notification_service.h"
  48 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  49 #include "chrome/browser/platform_util.h"
  50 #include "chrome/browser/plugins/plugin_info_message_filter.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/prerender/prerender_tracker.h"
  56 #include "chrome/browser/printing/printing_message_filter.h"
  57 #include "chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.h"
  58 #include "chrome/browser/profiles/profile.h"
  59 #include "chrome/browser/profiles/profile_io_data.h"
  60 #include "chrome/browser/renderer_host/chrome_render_message_filter.h"
  61 #include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
  62 #include "chrome/browser/search/instant_service.h"
  63 #include "chrome/browser/search/instant_service_factory.h"
  64 #include "chrome/browser/search/search.h"
  65 #include "chrome/browser/search_engines/search_provider_install_state_message_filter.h"
  66 #include "chrome/browser/signin/principals_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_client_certificate_selector.h"
  73 #include "chrome/browser/tab_contents/tab_util.h"
  74 #include "chrome/browser/ui/blocked_content/blocked_window_params.h"
  75 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
  76 #include "chrome/browser/ui/chrome_select_file_policy.h"
  77 #include "chrome/browser/ui/sync/sync_promo_ui.h"
  78 #include "chrome/browser/ui/tab_contents/chrome_web_contents_view_delegate.h"
  79 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  80 #include "chrome/common/chrome_constants.h"
  81 #include "chrome/common/chrome_paths.h"
  82 #include "chrome/common/chrome_switches.h"
  83 #include "chrome/common/env_vars.h"
  84 #include "chrome/common/logging_chrome.h"
  85 #include "chrome/common/pepper_permission_util.h"
  86 #include "chrome/common/pref_names.h"
  87 #include "chrome/common/render_messages.h"
  88 #include "chrome/common/url_constants.h"
  89 #include "chrome/grit/generated_resources.h"
  90 #include "chrome/installer/util/google_update_settings.h"
  91 #include "chromeos/chromeos_constants.h"
  92 #include "components/cdm/browser/cdm_message_filter_android.h"
  93 #include "components/cloud_devices/common/cloud_devices_switches.h"
  94 #include "components/content_settings/core/browser/content_settings_provider.h"
  95 #include "components/content_settings/core/common/content_settings.h"
  96 #include "components/content_settings/core/common/permission_request_id.h"
  97 #include "components/dom_distiller/core/url_constants.h"
  98 #include "components/google/core/browser/google_util.h"
  99 #include "components/metrics/client_info.h"
 100 #include "components/pref_registry/pref_registry_syncable.h"
 101 #include "components/signin/core/common/profile_management_switches.h"
 102 #include "components/translate/core/common/translate_switches.h"
 103 #include "content/public/browser/browser_child_process_host.h"
 104 #include "content/public/browser/browser_main_parts.h"
 105 #include "content/public/browser/browser_ppapi_host.h"
 106 #include "content/public/browser/browser_thread.h"
 107 #include "content/public/browser/browser_url_handler.h"
 108 #include "content/public/browser/child_process_data.h"
 109 #include "content/public/browser/child_process_security_policy.h"
 110 #include "content/public/browser/desktop_notification_delegate.h"
 111 #include "content/public/browser/render_frame_host.h"
 112 #include "content/public/browser/render_process_host.h"
 113 #include "content/public/browser/render_view_host.h"
 114 #include "content/public/browser/resource_context.h"
 115 #include "content/public/browser/site_instance.h"
 116 #include "content/public/browser/web_contents.h"
 117 #include "content/public/common/child_process_host.h"
 118 #include "content/public/common/content_descriptors.h"
 119 #include "content/public/common/show_desktop_notification_params.h"
 120 #include "content/public/common/url_utils.h"
 121 #include "content/public/common/web_preferences.h"
 122 #include "net/base/mime_util.h"
 123 #include "net/cookies/canonical_cookie.h"
 124 #include "net/cookies/cookie_options.h"
 125 #include "net/ssl/ssl_cert_request_info.h"
 126 #include "ppapi/host/ppapi_host.h"
 127 #include "ppapi/shared_impl/ppapi_switches.h"
 128 #include "storage/browser/fileapi/external_mount_points.h"
 129 #include "ui/base/l10n/l10n_util.h"
 130 #include "ui/base/resource/resource_bundle.h"
 131 #include "ui/resources/grit/ui_resources.h"
 132
 133 #if defined(OS_WIN)
 134 #include "base/win/windows_version.h"
 135 #include "chrome/browser/chrome_browser_main_win.h"
 136 #include "sandbox/win/src/sandbox_policy.h"
 137 #elif defined(OS_MACOSX)
 138 #include "chrome/browser/chrome_browser_main_mac.h"
 139 #include "chrome/browser/spellchecker/spellcheck_message_filter_mac.h"
 140 #include "components/crash/app/breakpad_mac.h"
 141 #elif defined(OS_CHROMEOS)
 142 #include "chrome/browser/chromeos/chrome_browser_main_chromeos.h"
 143 #include "chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.h"
 144 #include "chrome/browser/chromeos/file_manager/app_id.h"
 145 #include "chrome/browser/chromeos/file_system_provider/fileapi/backend_delegate.h"
 146 #include "chrome/browser/chromeos/fileapi/file_system_backend.h"
 147 #include "chrome/browser/chromeos/fileapi/mtp_file_system_backend_delegate.h"
 148 #include "chrome/browser/chromeos/login/startup_utils.h"
 149 #include "chrome/browser/chromeos/system/input_device_settings.h"
 150 #include "chromeos/chromeos_switches.h"
 151 #include "components/user_manager/user_manager.h"
 152 #elif defined(OS_LINUX)
 153 #include "chrome/browser/chrome_browser_main_linux.h"
 154 #elif defined(OS_ANDROID)
 155 #include "chrome/browser/android/new_tab_page_url_handler.h"
 156 #include "chrome/browser/android/webapps/single_tab_mode_tab_helper.h"
 157 #include "chrome/browser/chrome_browser_main_android.h"
 158 #include "chrome/browser/media/protected_media_identifier_permission_context.h"
 159 #include "chrome/browser/media/protected_media_identifier_permission_context_factory.h"
 160 #include "chrome/common/descriptors_android.h"
 161 #include "components/crash/browser/crash_dump_manager_android.h"
 162 #elif defined(OS_POSIX)
 163 #include "chrome/browser/chrome_browser_main_posix.h"
 164 #endif
 165
 166 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 167 #include "base/debug/leak_annotations.h"
 168 #include "components/crash/app/breakpad_linux.h"
 169 #include "components/crash/browser/crash_handler_host_linux.h"
 170 #endif
 171
 172 #if defined(OS_ANDROID)
 173 #include "ui/base/ui_base_paths.h"
 174 #include "ui/gfx/android/device_display_info.h"
 175 #endif
 176
 177 #if defined(OS_ANDROID)
 178 #include "chrome/browser/android/dev_tools_manager_delegate_android.h"
 179 #else
 180 #include "chrome/browser/devtools/chrome_devtools_manager_delegate.h"
 181 #endif
 182
 183 #if !defined(OS_CHROMEOS)
 184 #include "chrome/browser/signin/chrome_signin_client.h"
 185 #include "chrome/browser/signin/chrome_signin_client_factory.h"
 186 #include "chrome/browser/signin/signin_manager_factory.h"
 187 #include "components/signin/core/browser/signin_manager.h"
 188 #endif
 189
 190 #if defined(TOOLKIT_VIEWS)
 191 #include "chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h"
 192 #endif
 193
 194 #if defined(USE_ATHENA)
 195 #include "athena/content/public/web_contents_view_delegate_creator.h"
 196 #include "chrome/browser/ui/views/athena/chrome_browser_main_extra_parts_athena.h"
 197 #elif defined(USE_ASH)
 198 #include "chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h"
 199 #endif
 200
 201 #if defined(USE_AURA)
 202 #include "chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.h"
 203 #endif
 204
 205 #if defined(USE_X11)
 206 #include "chrome/browser/chrome_browser_main_extra_parts_x11.h"
 207 #endif
 208
 209 #if defined(ENABLE_CAPTIVE_PORTAL_DETECTION)
 210 #include "chrome/browser/captive_portal/captive_portal_tab_helper.h"
 211 #endif
 212
 213 #if !defined(DISABLE_NACL)
 214 #include "components/nacl/browser/nacl_browser.h"
 215 #include "components/nacl/browser/nacl_host_message_filter.h"
 216 #include "components/nacl/browser/nacl_process_host.h"
 217 #include "components/nacl/common/nacl_process_type.h"
 218 #include "components/nacl/common/nacl_switches.h"
 219 #endif
 220
 221 #if defined(ENABLE_EXTENSIONS)
 222 #include "chrome/browser/extensions/chrome_content_browser_client_extensions_part.h"
 223 #include "chrome/browser/extensions/extension_service.h"
 224 #include "chrome/browser/extensions/extension_util.h"
 225 #include "chrome/browser/speech/extension_api/tts_engine_extension_api.h"
 226 #include "extensions/browser/extension_system.h"
 227 #include "extensions/browser/guest_view/guest_view_base.h"
 228 #include "extensions/browser/guest_view/guest_view_manager.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_SPELLCHECK)
 243 #include "chrome/browser/spellchecker/spellcheck_message_filter.h"
 244 #endif
 245
 246 #if defined(ENABLE_WEBRTC)
 247 #include "chrome/browser/media/webrtc_logging_handler_host.h"
 248 #endif
 249
 250 using base::FileDescriptor;
 251 using blink::WebWindowFeatures;
 252 using content::AccessTokenStore;
 253 using content::BrowserThread;
 254 using content::BrowserURLHandler;
 255 using content::ChildProcessSecurityPolicy;
 256 using content::QuotaPermissionContext;
 257 using content::RenderFrameHost;
 258 using content::RenderViewHost;
 259 using content::ResourceType;
 260 using content::SiteInstance;
 261 using content::WebContents;
 262 using content::WebPreferences;
 263 using message_center::NotifierId;
 264
 265 #if defined(OS_POSIX)
 266 using content::FileDescriptorInfo;
 267 #endif
 268
 269 #if defined(ENABLE_EXTENSIONS)
 270 using extensions::APIPermission;
 271 using extensions::ChromeContentBrowserClientExtensionsPart;
 272 using extensions::Extension;
 273 using extensions::InfoMap;
 274 using extensions::Manifest;
 275 #endif
 276
 277 namespace {
 278
 279 // Cached version of the locale so we can return the locale on the I/O
 280 // thread.
 281 base::LazyInstance<std::string> g_io_thread_application_locale;
 282
 283 #if defined(ENABLE_PLUGINS)
 284 // TODO(teravest): Add renderer-side API-specific checking for these APIs so
 285 // that blanket permission isn't granted to all dev channel APIs for these.
 286 // http://crbug.com/386743
 287 const char* const kPredefinedAllowedDevChannelOrigins[] = {
 288   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",  // see crbug.com/383937
 289   "4EB74897CB187C7633357C2FE832E0AD6A44883A"   // see crbug.com/383937
 290 };
 291
 292 const char* const kPredefinedAllowedFileHandleOrigins[] = {
 293   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",  // see crbug.com/234789
 294   "4EB74897CB187C7633357C2FE832E0AD6A44883A"   // see crbug.com/234789
 295 };
 296
 297 const char* const kPredefinedAllowedSocketOrigins[] = {
 298   "okddffdblfhhnmhodogpojmfkjmhinfp",  // Test SSH Client
 299   "pnhechapfaindjhompbnflcldabbghjo",  // HTerm App (SSH Client)
 300   "bglhmjfplikpjnfoegeomebmfnkjomhe",  // see crbug.com/122126
 301   "gbchcmhmhahfdphkhkmpfmihenigjmpp",  // Chrome Remote Desktop
 302   "kgngmbheleoaphbjbaiobfdepmghbfah",  // Pre-release Chrome Remote Desktop
 303   "odkaodonbgfohohmklejpjiejmcipmib",  // Dogfood Chrome Remote Desktop
 304   "ojoimpklfciegopdfgeenehpalipignm",  // Chromoting canary
 305   "cbkkbcmdlboombapidmoeolnmdacpkch",  // see crbug.com/129089
 306   "hhnbmknkdabfoieppbbljkhkfjcmcbjh",  // see crbug.com/134099
 307   "mablfbjkhmhkmefkjjacnbaikjkipphg",  // see crbug.com/134099
 308   "pdeelgamlgannhelgoegilelnnojegoh",  // see crbug.com/134099
 309   "cabapfdbkniadpollkckdnedaanlciaj",  // see crbug.com/134099
 310   "mapljbgnjledlpdmlchihnmeclmefbba",  // see crbug.com/134099
 311   "ghbfeebgmiidnnmeobbbaiamklmpbpii",  // see crbug.com/134099
 312   "jdfhpkjeckflbbleddjlpimecpbjdeep",  // see crbug.com/142514
 313   "iabmpiboiopbgfabjmgeedhcmjenhbla",  // see crbug.com/165080
 314   "B7CF8A292249681AF81771650BA4CEEAF19A4560",  // see crbug.com/165080
 315   "7525AF4F66763A70A883C4700529F647B470E4D2",  // see crbug.com/238084
 316   "0B549507088E1564D672F7942EB87CA4DAD73972",  // see crbug.com/238084
 317   "864288364E239573E777D3E0E36864E590E95C74"   // see crbug.com/238084
 318 };
 319 #endif
 320
 321 // Returns a copy of the given url with its host set to given host and path set
 322 // to given path. Other parts of the url will be the same.
 323 GURL ReplaceURLHostAndPath(const GURL& url,
 324                            const std::string& host,
 325                            const std::string& path) {
 326   url::Replacements<char> replacements;
 327   replacements.SetHost(host.c_str(), url::Component(0, host.length()));
 328   replacements.SetPath(path.c_str(), url::Component(0, path.length()));
 329   return url.ReplaceComponents(replacements);
 330 }
 331
 332 // Maps "foo://bar/baz/" to "foo://chrome/bar/baz/".
 333 GURL AddUberHost(const GURL& url) {
 334   const std::string uber_host = chrome::kChromeUIUberHost;
 335   const std::string new_path = url.host() + url.path();
 336
 337   return ReplaceURLHostAndPath(url, uber_host, new_path);
 338 }
 339
 340 // If url->host() is "chrome" and url->path() has characters other than the
 341 // first slash, changes the url from "foo://chrome/bar/" to "foo://bar/" and
 342 // returns true. Otherwise returns false.
 343 bool RemoveUberHost(GURL* url) {
 344   if (url->host() != chrome::kChromeUIUberHost)
 345     return false;
 346
 347   if (url->path().empty() || url->path() == "/")
 348     return false;
 349
 350   const std::string old_path = url->path();
 351
 352   const std::string::size_type separator = old_path.find('/', 1);
 353   std::string new_host;
 354   std::string new_path;
 355   if (separator == std::string::npos) {
 356     new_host = old_path.substr(1);
 357   } else {
 358     new_host = old_path.substr(1, separator - 1);
 359     new_path = old_path.substr(separator);
 360   }
 361
 362   // Do not allow URLs with paths empty before the first slash since we can't
 363   // have an empty host. (e.g "foo://chrome//")
 364   if (new_host.empty())
 365     return false;
 366
 367   *url = ReplaceURLHostAndPath(*url, new_host, new_path);
 368
 369   DCHECK(url->is_valid());
 370
 371   return true;
 372 }
 373
 374 // Handles rewriting Web UI URLs.
 375 bool HandleWebUI(GURL* url, content::BrowserContext* browser_context) {
 376   // Do not handle special URLs such as "about:foo"
 377   if (!url->host().empty()) {
 378     const GURL chrome_url = AddUberHost(*url);
 379
 380     // Handle valid "chrome://chrome/foo" URLs so the reverse handler will
 381     // be called.
 382     if (ChromeWebUIControllerFactory::GetInstance()->UseWebUIForURL(
 383             browser_context, chrome_url))
 384       return true;
 385   }
 386
 387   if (!ChromeWebUIControllerFactory::GetInstance()->UseWebUIForURL(
 388           browser_context, *url))
 389     return false;
 390
 391 #if defined(OS_CHROMEOS)
 392   // Special case : in ChromeOS in Guest mode bookmarks and history are
 393   // disabled for security reasons. New tab page explains the reasons, so
 394   // we redirect user to new tab page.
 395   if (user_manager::UserManager::Get()->IsLoggedInAsGuest()) {
 396     if (url->SchemeIs(content::kChromeUIScheme) &&
 397         (url->DomainIs(chrome::kChromeUIBookmarksHost) ||
 398          url->DomainIs(chrome::kChromeUIHistoryHost))) {
 399       // Rewrite with new tab URL
 400       *url = GURL(chrome::kChromeUINewTabURL);
 401     }
 402   }
 403 #endif
 404
 405   return true;
 406 }
 407
 408 // Reverse URL handler for Web UI. Maps "chrome://chrome/foo/" to
 409 // "chrome://foo/".
 410 bool HandleWebUIReverse(GURL* url, content::BrowserContext* browser_context) {
 411   if (!url->is_valid() || !url->SchemeIs(content::kChromeUIScheme))
 412     return false;
 413
 414   return RemoveUberHost(url);
 415 }
 416
 417 bool CertMatchesFilter(const net::X509Certificate& cert,
 418                        const base::DictionaryValue& filter) {
 419   // TODO(markusheintz): This is the minimal required filter implementation.
 420   // Implement a better matcher.
 421
 422   // An empty filter matches any client certificate since no requirements are
 423   // specified at all.
 424   if (filter.empty())
 425     return true;
 426
 427   std::string common_name;
 428   if (filter.GetString("ISSUER.CN", &common_name) &&
 429       (cert.issuer().common_name == common_name)) {
 430     return true;
 431   }
 432   return false;
 433 }
 434
 435 #if defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
 436 breakpad::CrashHandlerHostLinux* CreateCrashHandlerHost(
 437     const std::string& process_type) {
 438   base::FilePath dumps_path;
 439   PathService::Get(chrome::DIR_CRASH_DUMPS, &dumps_path);
 440   {
 441     ANNOTATE_SCOPED_MEMORY_LEAK;
 442     bool upload = (getenv(env_vars::kHeadless) == NULL);
 443     breakpad::CrashHandlerHostLinux* crash_handler =
 444         new breakpad::CrashHandlerHostLinux(process_type, dumps_path, upload);
 445     crash_handler->StartUploaderThread();
 446     return crash_handler;
 447   }
 448 }
 449
 450 int GetCrashSignalFD(const CommandLine& command_line) {
 451   // Extensions have the same process type as renderers.
 452   if (command_line.HasSwitch(extensions::switches::kExtensionProcess)) {
 453     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 454     if (!crash_handler)
 455       crash_handler = CreateCrashHandlerHost("extension");
 456     return crash_handler->GetDeathSignalSocket();
 457   }
 458
 459   std::string process_type =
 460       command_line.GetSwitchValueASCII(switches::kProcessType);
 461
 462   if (process_type == switches::kRendererProcess) {
 463     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 464     if (!crash_handler)
 465       crash_handler = CreateCrashHandlerHost(process_type);
 466     return crash_handler->GetDeathSignalSocket();
 467   }
 468
 469   if (process_type == switches::kPluginProcess) {
 470     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 471     if (!crash_handler)
 472       crash_handler = CreateCrashHandlerHost(process_type);
 473     return crash_handler->GetDeathSignalSocket();
 474   }
 475
 476   if (process_type == switches::kPpapiPluginProcess) {
 477     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 478     if (!crash_handler)
 479       crash_handler = CreateCrashHandlerHost(process_type);
 480     return crash_handler->GetDeathSignalSocket();
 481   }
 482
 483   if (process_type == switches::kGpuProcess) {
 484     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 485     if (!crash_handler)
 486       crash_handler = CreateCrashHandlerHost(process_type);
 487     return crash_handler->GetDeathSignalSocket();
 488   }
 489
 490   return -1;
 491 }
 492 #endif  // defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
 493
 494 #if !defined(OS_CHROMEOS)
 495 GURL GetEffectiveURLForSignin(const GURL& url) {
 496   CHECK(SigninManager::IsWebBasedSigninFlowURL(url));
 497
 498   GURL effective_url(SigninManager::kChromeSigninEffectiveSite);
 499   // Copy the path because the argument to SetPathStr must outlive
 500   // the Replacements object.
 501   const std::string path_copy(url.path());
 502   GURL::Replacements replacements;
 503   replacements.SetPathStr(path_copy);
 504   effective_url = effective_url.ReplaceComponents(replacements);
 505   return effective_url;
 506 }
 507 #endif
 508
 509 void SetApplicationLocaleOnIOThread(const std::string& locale) {
 510   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 511   g_io_thread_application_locale.Get() = locale;
 512 }
 513
 514 void HandleBlockedPopupOnUIThread(const BlockedWindowParams& params) {
 515   WebContents* tab = tab_util::GetWebContentsByID(params.render_process_id(),
 516                                                   params.opener_id());
 517   if (!tab)
 518     return;
 519
 520   prerender::PrerenderContents* prerender_contents =
 521       prerender::PrerenderContents::FromWebContents(tab);
 522   if (prerender_contents) {
 523     prerender_contents->Destroy(prerender::FINAL_STATUS_CREATE_NEW_WINDOW);
 524     return;
 525   }
 526
 527   PopupBlockerTabHelper* popup_helper =
 528       PopupBlockerTabHelper::FromWebContents(tab);
 529   if (!popup_helper)
 530     return;
 531   popup_helper->AddBlockedPopup(params);
 532 }
 533
 534 #if defined(OS_ANDROID)
 535
 536 void HandleSingleTabModeBlockOnUIThread(const BlockedWindowParams& params) {
 537   WebContents* web_contents =
 538       tab_util::GetWebContentsByID(params.render_process_id(),
 539                                    params.opener_id());
 540   if (!web_contents)
 541     return;
 542
 543   SingleTabModeTabHelper::FromWebContents(web_contents)->HandleOpenUrl(params);
 544 }
 545
 546 float GetDeviceScaleAdjustment() {
 547   static const float kMinFSM = 1.05f;
 548   static const int kWidthForMinFSM = 320;
 549   static const float kMaxFSM = 1.3f;
 550   static const int kWidthForMaxFSM = 800;
 551
 552   gfx::DeviceDisplayInfo info;
 553   int minWidth = info.GetSmallestDIPWidth();
 554
 555   if (minWidth <= kWidthForMinFSM)
 556     return kMinFSM;
 557   if (minWidth >= kWidthForMaxFSM)
 558     return kMaxFSM;
 559
 560   // The font scale multiplier varies linearly between kMinFSM and kMaxFSM.
 561   float ratio = static_cast<float>(minWidth - kWidthForMinFSM) /
 562       (kWidthForMaxFSM - kWidthForMinFSM);
 563   return ratio * (kMaxFSM - kMinFSM) + kMinFSM;
 564 }
 565
 566 #endif  // defined(OS_ANDROID)
 567
 568 #if defined(ENABLE_EXTENSIONS)
 569 // By default, JavaScript and images are enabled in guest content.
 570 void GetGuestViewDefaultContentSettingRules(
 571     bool incognito,
 572     RendererContentSettingRules* rules) {
 573   rules->image_rules.push_back(
 574       ContentSettingPatternSource(ContentSettingsPattern::Wildcard(),
 575                                   ContentSettingsPattern::Wildcard(),
 576                                   CONTENT_SETTING_ALLOW,
 577                                   std::string(),
 578                                   incognito));
 579
 580   rules->script_rules.push_back(
 581       ContentSettingPatternSource(ContentSettingsPattern::Wildcard(),
 582                                   ContentSettingsPattern::Wildcard(),
 583                                   CONTENT_SETTING_ALLOW,
 584                                   std::string(),
 585                                   incognito));
 586 }
 587 #endif  // defined(ENALBE_EXTENSIONS)
 588
 589 }  // namespace
 590
 591 namespace chrome {
 592
 593 ChromeContentBrowserClient::ChromeContentBrowserClient()
 594     : prerender_tracker_(NULL),
 595       weak_factory_(this) {
 596 #if defined(ENABLE_PLUGINS)
 597   for (size_t i = 0; i < arraysize(kPredefinedAllowedDevChannelOrigins); ++i)
 598     allowed_dev_channel_origins_.insert(kPredefinedAllowedDevChannelOrigins[i]);
 599   for (size_t i = 0; i < arraysize(kPredefinedAllowedFileHandleOrigins); ++i)
 600     allowed_file_handle_origins_.insert(kPredefinedAllowedFileHandleOrigins[i]);
 601   for (size_t i = 0; i < arraysize(kPredefinedAllowedSocketOrigins); ++i)
 602     allowed_socket_origins_.insert(kPredefinedAllowedSocketOrigins[i]);
 603 #endif
 604
 605 #if !defined(OS_ANDROID)
 606   TtsExtensionEngine* tts_extension_engine = TtsExtensionEngine::GetInstance();
 607   TtsController::GetInstance()->SetTtsEngineDelegate(tts_extension_engine);
 608 #endif
 609
 610 #if defined(ENABLE_EXTENSIONS)
 611   extra_parts_.push_back(new ChromeContentBrowserClientExtensionsPart);
 612 #endif
 613 }
 614
 615 ChromeContentBrowserClient::~ChromeContentBrowserClient() {
 616   for (int i = static_cast<int>(extra_parts_.size()) - 1; i >= 0; --i)
 617     delete extra_parts_[i];
 618   extra_parts_.clear();
 619 }
 620
 621 // static
 622 void ChromeContentBrowserClient::RegisterProfilePrefs(
 623     user_prefs::PrefRegistrySyncable* registry) {
 624   registry->RegisterBooleanPref(
 625       prefs::kDisable3DAPIs,
 626       false,
 627       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 628   registry->RegisterBooleanPref(
 629       prefs::kEnableHyperlinkAuditing,
 630       true,
 631       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 632   registry->RegisterListPref(
 633       prefs::kEnableDeprecatedWebPlatformFeatures,
 634       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 635 }
 636
 637 // static
 638 void ChromeContentBrowserClient::SetApplicationLocale(
 639     const std::string& locale) {
 640   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 641
 642   // This object is guaranteed to outlive all threads so we don't have to
 643   // worry about the lack of refcounting and can just post as Unretained.
 644   //
 645   // The common case is that this function is called early in Chrome startup
 646   // before any threads are created (it will also be called later if the user
 647   // changes the pref). In this case, there will be no threads created and
 648   // posting will fail. When there are no threads, we can just set the string
 649   // without worrying about threadsafety.
 650   if (!BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
 651           base::Bind(&SetApplicationLocaleOnIOThread, locale))) {
 652     g_io_thread_application_locale.Get() = locale;
 653   }
 654 }
 655
 656 content::BrowserMainParts* ChromeContentBrowserClient::CreateBrowserMainParts(
 657     const content::MainFunctionParams& parameters) {
 658   ChromeBrowserMainParts* main_parts;
 659   // Construct the Main browser parts based on the OS type.
 660 #if defined(OS_WIN)
 661   main_parts = new ChromeBrowserMainPartsWin(parameters);
 662 #elif defined(OS_MACOSX)
 663   main_parts = new ChromeBrowserMainPartsMac(parameters);
 664 #elif defined(OS_CHROMEOS)
 665   main_parts = new chromeos::ChromeBrowserMainPartsChromeos(parameters);
 666 #elif defined(OS_LINUX)
 667   main_parts = new ChromeBrowserMainPartsLinux(parameters);
 668 #elif defined(OS_ANDROID)
 669   main_parts = new ChromeBrowserMainPartsAndroid(parameters);
 670 #elif defined(OS_POSIX)
 671   main_parts = new ChromeBrowserMainPartsPosix(parameters);
 672 #else
 673   NOTREACHED();
 674   main_parts = new ChromeBrowserMainParts(parameters);
 675 #endif
 676
 677   chrome::AddProfilesExtraParts(main_parts);
 678
 679   // Construct additional browser parts. Stages are called in the order in
 680   // which they are added.
 681 #if defined(TOOLKIT_VIEWS)
 682   main_parts->AddParts(new ChromeBrowserMainExtraPartsViews());
 683 #endif
 684
 685 // TODO(oshima): Athena on chrome currently requires USE_ASH to build.
 686 // We should reduce the dependency as much as possible.
 687 #if defined(USE_ATHENA)
 688   main_parts->AddParts(CreateChromeBrowserMainExtraPartsAthena());
 689 #elif defined(USE_ASH)
 690   main_parts->AddParts(new ChromeBrowserMainExtraPartsAsh());
 691 #endif
 692
 693 #if defined(USE_AURA)
 694   main_parts->AddParts(new ChromeBrowserMainExtraPartsAura());
 695 #endif
 696
 697 #if defined(USE_X11)
 698   main_parts->AddParts(new ChromeBrowserMainExtraPartsX11());
 699 #endif
 700
 701   chrome::AddMetricsExtraParts(main_parts);
 702
 703   return main_parts;
 704 }
 705
 706 std::string ChromeContentBrowserClient::GetStoragePartitionIdForSite(
 707     content::BrowserContext* browser_context,
 708     const GURL& site) {
 709   std::string partition_id;
 710
 711   // The partition ID for webview guest processes is the string value of its
 712   // SiteInstance URL - "chrome-guest://app_id/persist?partition".
 713   if (site.SchemeIs(content::kGuestScheme)) {
 714     partition_id = site.spec();
 715   } else if (site.GetOrigin().spec() == kChromeUIChromeSigninURL) {
 716     // Chrome signin page has an embedded iframe of extension and web content,
 717     // thus it must be isolated from other webUI pages.
 718     partition_id = site.GetOrigin().spec();
 719   }
 720
 721   DCHECK(IsValidStoragePartitionId(browser_context, partition_id));
 722   return partition_id;
 723 }
 724
 725 bool ChromeContentBrowserClient::IsValidStoragePartitionId(
 726     content::BrowserContext* browser_context,
 727     const std::string& partition_id) {
 728   // The default ID is empty and is always valid.
 729   if (partition_id.empty())
 730     return true;
 731
 732   return GURL(partition_id).is_valid();
 733 }
 734
 735 void ChromeContentBrowserClient::GetStoragePartitionConfigForSite(
 736     content::BrowserContext* browser_context,
 737     const GURL& site,
 738     bool can_be_default,
 739     std::string* partition_domain,
 740     std::string* partition_name,
 741     bool* in_memory) {
 742   // Default to the browser-wide storage partition and override based on |site|
 743   // below.
 744   partition_domain->clear();
 745   partition_name->clear();
 746   *in_memory = false;
 747
 748   bool success = false;
 749 #if defined(ENABLE_EXTENSIONS)
 750   success = extensions::WebViewGuest::GetGuestPartitionConfigForSite(
 751       site, partition_domain, partition_name, in_memory);
 752
 753   if (!success && site.SchemeIs(extensions::kExtensionScheme)) {
 754     // If |can_be_default| is false, the caller is stating that the |site|
 755     // should be parsed as if it had isolated storage. In particular it is
 756     // important to NOT check ExtensionService for the is_storage_isolated()
 757     // attribute because this code path is run during Extension uninstall
 758     // to do cleanup after the Extension has already been unloaded from the
 759     // ExtensionService.
 760     bool is_isolated = !can_be_default;
 761     if (can_be_default) {
 762       if (extensions::util::SiteHasIsolatedStorage(site, browser_context))
 763         is_isolated = true;
 764     }
 765
 766     if (is_isolated) {
 767       CHECK(site.has_host());
 768       // For extensions with isolated storage, the the host of the |site| is
 769       // the |partition_domain|. The |in_memory| and |partition_name| are only
 770       // used in guest schemes so they are cleared here.
 771       *partition_domain = site.host();
 772       *in_memory = false;
 773       partition_name->clear();
 774     }
 775     success = true;
 776   }
 777 #endif
 778
 779   if (!success && (site.GetOrigin().spec() == kChromeUIChromeSigninURL)) {
 780     // Chrome signin page has an embedded iframe of extension and web content,
 781     // thus it must be isolated from other webUI pages.
 782     *partition_domain = chrome::kChromeUIChromeSigninHost;
 783   }
 784
 785   // Assert that if |can_be_default| is false, the code above must have found a
 786   // non-default partition.  If this fails, the caller has a serious logic
 787   // error about which StoragePartition they expect to be in and it is not
 788   // safe to continue.
 789   CHECK(can_be_default || !partition_domain->empty());
 790 }
 791
 792 content::WebContentsViewDelegate*
 793     ChromeContentBrowserClient::GetWebContentsViewDelegate(
 794         content::WebContents* web_contents) {
 795 #if defined(USE_ATHENA)
 796   return athena::CreateWebContentsViewDelegate(web_contents);
 797 #else
 798   return chrome::CreateWebContentsViewDelegate(web_contents);
 799 #endif
 800 }
 801
 802 void ChromeContentBrowserClient::RenderProcessWillLaunch(
 803     content::RenderProcessHost* host) {
 804   int id = host->GetID();
 805   Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
 806   net::URLRequestContextGetter* context =
 807       profile->GetRequestContextForRenderProcess(id);
 808
 809   host->AddFilter(new ChromeRenderMessageFilter(id, profile));
 810 #if defined(ENABLE_PLUGINS)
 811   host->AddFilter(new PluginInfoMessageFilter(id, profile));
 812 #endif
 813   host->AddFilter(new cast::CastTransportHostFilter);
 814 #if defined(ENABLE_PRINTING)
 815   host->AddFilter(new printing::PrintingMessageFilter(id, profile));
 816 #endif
 817   host->AddFilter(new SearchProviderInstallStateMessageFilter(id, profile));
 818 #if defined(ENABLE_SPELLCHECK)
 819   host->AddFilter(new SpellCheckMessageFilter(id));
 820 #endif
 821 #if defined(OS_MACOSX)
 822   host->AddFilter(new SpellCheckMessageFilterMac(id));
 823 #endif
 824   host->AddFilter(new ChromeNetBenchmarkingMessageFilter(profile, context));
 825   host->AddFilter(new prerender::PrerenderMessageFilter(id, profile));
 826   host->AddFilter(new TtsMessageFilter(id, host->GetBrowserContext()));
 827 #if defined(ENABLE_WEBRTC)
 828   WebRtcLoggingHandlerHost* webrtc_logging_handler_host =
 829       new WebRtcLoggingHandlerHost(profile);
 830   host->SetWebRtcLogMessageCallback(base::Bind(
 831       &WebRtcLoggingHandlerHost::LogMessage, webrtc_logging_handler_host));
 832   host->AddFilter(webrtc_logging_handler_host);
 833   host->SetUserData(host, new base::UserDataAdapter<WebRtcLoggingHandlerHost>(
 834       webrtc_logging_handler_host));
 835 #endif
 836 #if !defined(DISABLE_NACL)
 837   host->AddFilter(new nacl::NaClHostMessageFilter(
 838       id, profile->IsOffTheRecord(),
 839       profile->GetPath(),
 840       context));
 841 #endif
 842 #if defined(OS_ANDROID)
 843   host->AddFilter(new cdm::CdmMessageFilterAndroid());
 844 #endif
 845   if (switches::IsEnableAccountConsistency())
 846     host->AddFilter(new PrincipalsMessageFilter(id));
 847
 848   host->Send(new ChromeViewMsg_SetIsIncognitoProcess(
 849       profile->IsOffTheRecord()));
 850
 851   for (size_t i = 0; i < extra_parts_.size(); ++i)
 852     extra_parts_[i]->RenderProcessWillLaunch(host);
 853
 854   RendererContentSettingRules rules;
 855   if (host->IsIsolatedGuest()) {
 856 #if defined(ENABLE_EXTENSIONS)
 857     GetGuestViewDefaultContentSettingRules(profile->IsOffTheRecord(), &rules);
 858 #else
 859     NOTREACHED();
 860 #endif
 861   } else {
 862     GetRendererContentSettingRules(
 863         profile->GetHostContentSettingsMap(), &rules);
 864   }
 865   host->Send(new ChromeViewMsg_SetContentSettingRules(rules));
 866 }
 867
 868 GURL ChromeContentBrowserClient::GetEffectiveURL(
 869     content::BrowserContext* browser_context, const GURL& url) {
 870   Profile* profile = Profile::FromBrowserContext(browser_context);
 871   if (!profile)
 872     return url;
 873
 874   // If the input |url| should be assigned to the Instant renderer, make its
 875   // effective URL distinct from other URLs on the search provider's domain.
 876   if (chrome::ShouldAssignURLToInstantRenderer(url, profile))
 877     return chrome::GetEffectiveURLForInstant(url, profile);
 878
 879 #if !defined(OS_CHROMEOS)
 880   // If the input |url| should be assigned to the Signin renderer, make its
 881   // effective URL distinct from other URLs on the signin service's domain.
 882   // Note that the signin renderer will be allowed to sign the user in to
 883   // Chrome.
 884   if (SigninManager::IsWebBasedSigninFlowURL(url))
 885     return GetEffectiveURLForSignin(url);
 886 #endif
 887
 888 #if defined(ENABLE_EXTENSIONS)
 889   return ChromeContentBrowserClientExtensionsPart::GetEffectiveURL(
 890       profile, url);
 891 #else
 892   return url;
 893 #endif
 894 }
 895
 896 bool ChromeContentBrowserClient::ShouldUseProcessPerSite(
 897     content::BrowserContext* browser_context, const GURL& effective_url) {
 898   // Non-extension, non-Instant URLs should generally use
 899   // process-per-site-instance.  Because we expect to use the effective URL,
 900   // URLs for hosted apps (apart from bookmark apps) should have an extension
 901   // scheme by now.
 902
 903   Profile* profile = Profile::FromBrowserContext(browser_context);
 904   if (!profile)
 905     return false;
 906
 907   if (chrome::ShouldUseProcessPerSiteForInstantURL(effective_url, profile))
 908     return true;
 909
 910 #if !defined(OS_CHROMEOS)
 911   if (SigninManager::IsWebBasedSigninFlowURL(effective_url))
 912     return true;
 913 #endif
 914
 915 #if defined(ENABLE_EXTENSIONS)
 916   return ChromeContentBrowserClientExtensionsPart::ShouldUseProcessPerSite(
 917       profile, effective_url);
 918 #else
 919   return false;
 920 #endif
 921 }
 922
 923 // These are treated as WebUI schemes but do not get WebUI bindings. Also,
 924 // view-source is allowed for these schemes.
 925 void ChromeContentBrowserClient::GetAdditionalWebUISchemes(
 926     std::vector<std::string>* additional_schemes) {
 927   additional_schemes->push_back(chrome::kChromeSearchScheme);
 928   additional_schemes->push_back(dom_distiller::kDomDistillerScheme);
 929 }
 930
 931 void ChromeContentBrowserClient::GetAdditionalWebUIHostsToIgnoreParititionCheck(
 932     std::vector<std::string>* hosts) {
 933   hosts->push_back(chrome::kChromeUIExtensionIconHost);
 934   hosts->push_back(chrome::kChromeUIFaviconHost);
 935   hosts->push_back(chrome::kChromeUIThemeHost);
 936   hosts->push_back(chrome::kChromeUIThumbnailHost);
 937   hosts->push_back(chrome::kChromeUIThumbnailHost2);
 938   hosts->push_back(chrome::kChromeUIThumbnailListHost);
 939 }
 940
 941 net::URLRequestContextGetter*
 942 ChromeContentBrowserClient::CreateRequestContext(
 943     content::BrowserContext* browser_context,
 944     content::ProtocolHandlerMap* protocol_handlers,
 945     content::URLRequestInterceptorScopedVector request_interceptors) {
 946   Profile* profile = Profile::FromBrowserContext(browser_context);
 947   return profile->CreateRequestContext(protocol_handlers,
 948                                        request_interceptors.Pass());
 949 }
 950
 951 net::URLRequestContextGetter*
 952 ChromeContentBrowserClient::CreateRequestContextForStoragePartition(
 953     content::BrowserContext* browser_context,
 954     const base::FilePath& partition_path,
 955     bool in_memory,
 956     content::ProtocolHandlerMap* protocol_handlers,
 957     content::URLRequestInterceptorScopedVector request_interceptors) {
 958   Profile* profile = Profile::FromBrowserContext(browser_context);
 959   return profile->CreateRequestContextForStoragePartition(
 960       partition_path,
 961       in_memory,
 962       protocol_handlers,
 963       request_interceptors.Pass());
 964 }
 965
 966 bool ChromeContentBrowserClient::IsHandledURL(const GURL& url) {
 967   return ProfileIOData::IsHandledURL(url);
 968 }
 969
 970 bool ChromeContentBrowserClient::CanCommitURL(
 971     content::RenderProcessHost* process_host,
 972     const GURL& url) {
 973 #if defined(ENABLE_EXTENSIONS)
 974   return ChromeContentBrowserClientExtensionsPart::CanCommitURL(
 975       process_host, url);
 976 #else
 977   return true;
 978 #endif
 979 }
 980
 981 bool ChromeContentBrowserClient::ShouldAllowOpenURL(
 982     content::SiteInstance* site_instance, const GURL& url) {
 983   GURL from_url = site_instance->GetSiteURL();
 984
 985 #if defined(ENABLE_EXTENSIONS)
 986   bool result;
 987   if (ChromeContentBrowserClientExtensionsPart::ShouldAllowOpenURL(
 988       site_instance, from_url, url, &result))
 989     return result;
 990 #endif
 991
 992   // Do not allow chrome://chrome-signin navigate to other chrome:// URLs, since
 993   // the signin page may host untrusted web content.
 994   if (from_url.GetOrigin().spec() == chrome::kChromeUIChromeSigninURL &&
 995       url.SchemeIs(content::kChromeUIScheme) &&
 996       url.host() != chrome::kChromeUIChromeSigninHost) {
 997     VLOG(1) << "Blocked navigation to " << url.spec() << " from "
 998             << chrome::kChromeUIChromeSigninURL;
 999     return false;
1000   }
1001
1002   return true;
1003 }
1004
1005 bool ChromeContentBrowserClient::IsSuitableHost(
1006     content::RenderProcessHost* process_host,
1007     const GURL& site_url) {
1008   Profile* profile =
1009       Profile::FromBrowserContext(process_host->GetBrowserContext());
1010   // This may be NULL during tests. In that case, just assume any site can
1011   // share any host.
1012   if (!profile)
1013     return true;
1014
1015   // Instant URLs should only be in the instant process and instant process
1016   // should only have Instant URLs.
1017   InstantService* instant_service =
1018       InstantServiceFactory::GetForProfile(profile);
1019   if (instant_service) {
1020     bool is_instant_process = instant_service->IsInstantProcess(
1021         process_host->GetID());
1022     bool should_be_in_instant_process =
1023         chrome::ShouldAssignURLToInstantRenderer(site_url, profile);
1024     if (is_instant_process || should_be_in_instant_process)
1025       return is_instant_process && should_be_in_instant_process;
1026   }
1027
1028 #if !defined(OS_CHROMEOS)
1029   SigninClient* signin_client =
1030       ChromeSigninClientFactory::GetForProfile(profile);
1031   if (signin_client && signin_client->IsSigninProcess(process_host->GetID()))
1032     return SigninManager::IsWebBasedSigninFlowURL(site_url);
1033 #endif
1034
1035 #if defined(ENABLE_EXTENSIONS)
1036   return ChromeContentBrowserClientExtensionsPart::IsSuitableHost(
1037       profile, process_host, site_url);
1038 #else
1039   return true;
1040 #endif
1041 }
1042
1043 bool ChromeContentBrowserClient::MayReuseHost(
1044     content::RenderProcessHost* process_host) {
1045   // If there is currently a prerender in progress for the host provided,
1046   // it may not be shared. We require prerenders to be by themselves in a
1047   // separate process, so that we can monitor their resource usage, and so that
1048   // we can track the cookies that they change.
1049   Profile* profile = Profile::FromBrowserContext(
1050       process_host->GetBrowserContext());
1051   prerender::PrerenderManager* prerender_manager =
1052       prerender::PrerenderManagerFactory::GetForProfile(profile);
1053   if (prerender_manager &&
1054       !prerender_manager->MayReuseProcessHost(process_host)) {
1055     return false;
1056   }
1057
1058   return true;
1059 }
1060
1061 bool ChromeContentBrowserClient::ShouldTryToUseExistingProcessHost(
1062     content::BrowserContext* browser_context, const GURL& url) {
1063   // It has to be a valid URL for us to check for an extension.
1064   if (!url.is_valid())
1065     return false;
1066
1067 #if defined(ENABLE_EXTENSIONS)
1068   Profile* profile = Profile::FromBrowserContext(browser_context);
1069   return ChromeContentBrowserClientExtensionsPart::
1070       ShouldTryToUseExistingProcessHost(
1071           profile, url);
1072 #else
1073   return false;
1074 #endif
1075 }
1076
1077 void ChromeContentBrowserClient::SiteInstanceGotProcess(
1078     SiteInstance* site_instance) {
1079   CHECK(site_instance->HasProcess());
1080
1081   Profile* profile = Profile::FromBrowserContext(
1082       site_instance->GetBrowserContext());
1083   if (!profile)
1084     return;
1085
1086   // Remember the ID of the Instant process to signal the renderer process
1087   // on startup in |AppendExtraCommandLineSwitches| below.
1088   if (chrome::ShouldAssignURLToInstantRenderer(
1089           site_instance->GetSiteURL(), profile)) {
1090     InstantService* instant_service =
1091         InstantServiceFactory::GetForProfile(profile);
1092     if (instant_service)
1093       instant_service->AddInstantProcess(site_instance->GetProcess()->GetID());
1094   }
1095
1096 #if !defined(OS_CHROMEOS)
1097   // We only expect there to be one signin process as we use process-per-site
1098   // for signin URLs. The signin process will be cleared from SigninManager
1099   // when the renderer is destroyed.
1100   if (SigninManager::IsWebBasedSigninFlowURL(site_instance->GetSiteURL())) {
1101     SigninClient* signin_client =
1102         ChromeSigninClientFactory::GetForProfile(profile);
1103     if (signin_client)
1104       signin_client->SetSigninProcess(site_instance->GetProcess()->GetID());
1105 #if defined(ENABLE_EXTENSIONS)
1106     ChromeContentBrowserClientExtensionsPart::SetSigninProcess(site_instance);
1107 #endif
1108   }
1109 #endif
1110
1111   for (size_t i = 0; i < extra_parts_.size(); ++i)
1112     extra_parts_[i]->SiteInstanceGotProcess(site_instance);
1113 }
1114
1115 void ChromeContentBrowserClient::SiteInstanceDeleting(
1116     SiteInstance* site_instance) {
1117   if (!site_instance->HasProcess())
1118     return;
1119
1120   for (size_t i = 0; i < extra_parts_.size(); ++i)
1121     extra_parts_[i]->SiteInstanceDeleting(site_instance);
1122 }
1123
1124 bool ChromeContentBrowserClient::ShouldSwapBrowsingInstancesForNavigation(
1125     SiteInstance* site_instance,
1126     const GURL& current_url,
1127     const GURL& new_url) {
1128 #if defined(ENABLE_EXTENSIONS)
1129   return ChromeContentBrowserClientExtensionsPart::
1130       ShouldSwapBrowsingInstancesForNavigation(
1131           site_instance, current_url, new_url);
1132 #else
1133   return false;
1134 #endif
1135 }
1136
1137 bool ChromeContentBrowserClient::ShouldSwapProcessesForRedirect(
1138     content::ResourceContext* resource_context, const GURL& current_url,
1139     const GURL& new_url) {
1140 #if defined(ENABLE_EXTENSIONS)
1141   return ChromeContentBrowserClientExtensionsPart::
1142       ShouldSwapProcessesForRedirect(resource_context, current_url, new_url);
1143 #else
1144   return false;
1145 #endif
1146 }
1147
1148 bool ChromeContentBrowserClient::ShouldAssignSiteForURL(const GURL& url) {
1149   return !url.SchemeIs(chrome::kChromeNativeScheme);
1150 }
1151
1152 std::string ChromeContentBrowserClient::GetCanonicalEncodingNameByAliasName(
1153     const std::string& alias_name) {
1154   return CharacterEncoding::GetCanonicalEncodingNameByAliasName(alias_name);
1155 }
1156
1157 namespace {
1158
1159 bool IsAutoReloadEnabled() {
1160   // Fetch the field trial, even though we don't use it. Calling FindFullName()
1161   // causes the field-trial mechanism to report which group we're in, which
1162   // might reflect a hard disable or hard enable via flag, both of which have
1163   // their own field trial groups. This lets us know what percentage of users
1164   // manually enable or disable auto-reload.
1165   std::string group = base::FieldTrialList::FindFullName(
1166       "AutoReloadExperiment");
1167   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
1168   if (browser_command_line.HasSwitch(switches::kEnableOfflineAutoReload))
1169     return true;
1170   if (browser_command_line.HasSwitch(switches::kDisableOfflineAutoReload))
1171     return false;
1172   return true;
1173 }
1174
1175 bool IsAutoReloadVisibleOnlyEnabled() {
1176   // See the block comment in IsAutoReloadEnabled().
1177   std::string group = base::FieldTrialList::FindFullName(
1178       "AutoReloadVisibleOnlyExperiment");
1179   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
1180   if (browser_command_line.HasSwitch(
1181       switches::kEnableOfflineAutoReloadVisibleOnly)) {
1182     return true;
1183   }
1184   if (browser_command_line.HasSwitch(
1185       switches::kDisableOfflineAutoReloadVisibleOnly)) {
1186     return false;
1187   }
1188   return true;
1189 }
1190
1191 }  // namespace
1192
1193 void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
1194     CommandLine* command_line, int child_process_id) {
1195 #if defined(OS_POSIX)
1196   if (breakpad::IsCrashReporterEnabled()) {
1197     scoped_ptr<metrics::ClientInfo> client_info =
1198         GoogleUpdateSettings::LoadMetricsClientInfo();
1199     command_line->AppendSwitchASCII(switches::kEnableCrashReporter,
1200                                     client_info ? client_info->client_id
1201                                                 : std::string());
1202   }
1203 #endif  // defined(OS_POSIX)
1204
1205   if (logging::DialogsAreSuppressed())
1206     command_line->AppendSwitch(switches::kNoErrorDialogs);
1207
1208   std::string process_type =
1209       command_line->GetSwitchValueASCII(switches::kProcessType);
1210   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
1211
1212   static const char* const kCommonSwitchNames[] = {
1213     switches::kUserAgent,
1214     switches::kUserDataDir,  // Make logs go to the right file.
1215   };
1216   command_line->CopySwitchesFrom(browser_command_line, kCommonSwitchNames,
1217                                  arraysize(kCommonSwitchNames));
1218
1219 #if defined(ENABLE_IPC_FUZZER)
1220   static const char* const kIpcFuzzerSwitches[] = {
1221     switches::kIpcFuzzerTestcase,
1222   };
1223   command_line->CopySwitchesFrom(browser_command_line, kIpcFuzzerSwitches,
1224                                  arraysize(kIpcFuzzerSwitches));
1225 #endif
1226
1227 #if defined(OS_CHROMEOS)
1228   // On Chrome OS need to pass primary user homedir (in multi-profiles session).
1229   base::FilePath homedir;
1230   PathService::Get(base::DIR_HOME, &homedir);
1231   command_line->AppendSwitchASCII(chromeos::switches::kHomedir,
1232                                   homedir.value().c_str());
1233 #endif
1234
1235   if (process_type == switches::kRendererProcess) {
1236     content::RenderProcessHost* process =
1237         content::RenderProcessHost::FromID(child_process_id);
1238     Profile* profile =
1239         process ? Profile::FromBrowserContext(process->GetBrowserContext())
1240                 : NULL;
1241     for (size_t i = 0; i < extra_parts_.size(); ++i) {
1242       extra_parts_[i]->AppendExtraRendererCommandLineSwitches(
1243           command_line, process, profile);
1244     }
1245
1246 #if defined(OS_CHROMEOS)
1247     const std::string& login_profile =
1248         browser_command_line.GetSwitchValueASCII(
1249             chromeos::switches::kLoginProfile);
1250     if (!login_profile.empty())
1251       command_line->AppendSwitchASCII(
1252           chromeos::switches::kLoginProfile, login_profile);
1253 #endif
1254
1255 #if defined(ENABLE_WEBRTC)
1256     MaybeCopyDisableWebRtcEncryptionSwitch(command_line,
1257                                            browser_command_line,
1258                                            VersionInfo::GetChannel());
1259 #endif
1260
1261     if (process) {
1262       PrefService* prefs = profile->GetPrefs();
1263       // Currently this pref is only registered if applied via a policy.
1264       if (prefs->HasPrefPath(prefs::kDisable3DAPIs) &&
1265           prefs->GetBoolean(prefs::kDisable3DAPIs)) {
1266         // Turn this policy into a command line switch.
1267         command_line->AppendSwitch(switches::kDisable3DAPIs);
1268       }
1269
1270       const base::ListValue* switches =
1271           prefs->GetList(prefs::kEnableDeprecatedWebPlatformFeatures);
1272       if (switches) {
1273         // Enable any deprecated features that have been re-enabled by policy.
1274         for (base::ListValue::const_iterator it = switches->begin();
1275              it != switches->end(); ++it) {
1276           std::string switch_to_enable;
1277           if ((*it)->GetAsString(&switch_to_enable))
1278             command_line->AppendSwitch(switch_to_enable);
1279         }
1280       }
1281
1282       // Disable client-side phishing detection in the renderer if it is
1283       // disabled in the Profile preferences or the browser process.
1284       if (!prefs->GetBoolean(prefs::kSafeBrowsingEnabled) ||
1285           !g_browser_process->safe_browsing_detection_service()) {
1286         command_line->AppendSwitch(
1287             switches::kDisableClientSidePhishingDetection);
1288       }
1289
1290       if (prefs->GetBoolean(prefs::kPrintPreviewDisabled))
1291         command_line->AppendSwitch(switches::kDisablePrintPreview);
1292
1293       InstantService* instant_service =
1294           InstantServiceFactory::GetForProfile(profile);
1295       if (instant_service &&
1296           instant_service->IsInstantProcess(process->GetID()))
1297         command_line->AppendSwitch(switches::kInstantProcess);
1298
1299 #if !defined(OS_CHROMEOS)
1300       SigninClient* signin_client =
1301           ChromeSigninClientFactory::GetForProfile(profile);
1302       if (signin_client && signin_client->IsSigninProcess(process->GetID()))
1303         command_line->AppendSwitch(switches::kSigninProcess);
1304 #endif
1305     }
1306
1307     if (IsAutoReloadEnabled())
1308       command_line->AppendSwitch(switches::kEnableOfflineAutoReload);
1309     if (IsAutoReloadVisibleOnlyEnabled()) {
1310       command_line->AppendSwitch(
1311           switches::kEnableOfflineAutoReloadVisibleOnly);
1312     }
1313
1314     {
1315       // Enable load stale cache if this session is in the field trial or
1316       // the user explicitly enabled it.  Note that as far as the renderer
1317       // is concerned, the feature is enabled if-and-only-if the
1318       // kEnableOfflineLoadStaleCache flag is on the command line;
1319       // the yes/no/default behavior is only at the browser command line
1320       // level.
1321
1322       // Command line switches override
1323       if (browser_command_line.HasSwitch(
1324               switches::kEnableOfflineLoadStaleCache)) {
1325         command_line->AppendSwitch(switches::kEnableOfflineLoadStaleCache);
1326       } else if (!browser_command_line.HasSwitch(
1327           switches::kDisableOfflineLoadStaleCache)) {
1328         std::string group =
1329             base::FieldTrialList::FindFullName("LoadStaleCacheExperiment");
1330
1331         if (group == "Enabled")
1332           command_line->AppendSwitch(switches::kEnableOfflineLoadStaleCache);
1333       }
1334     }
1335
1336     // Please keep this in alphabetical order.
1337     static const char* const kSwitchNames[] = {
1338       autofill::switches::kDisableIgnoreAutocompleteOff,
1339       autofill::switches::kDisablePasswordGeneration,
1340       autofill::switches::kEnablePasswordGeneration,
1341       autofill::switches::kLocalHeuristicsOnlyForPasswordGeneration,
1342 #if defined(ENABLE_EXTENSIONS)
1343       extensions::switches::kAllowHTTPBackgroundPage,
1344       extensions::switches::kAllowLegacyExtensionManifests,
1345       extensions::switches::kEnableAppWindowControls,
1346       extensions::switches::kEnableEmbeddedExtensionOptions,
1347       extensions::switches::kEnableExperimentalExtensionApis,
1348       extensions::switches::kEnableScriptsRequireAction,
1349       extensions::switches::kExtensionsOnChromeURLs,
1350       extensions::switches::kWhitelistedExtensionID,
1351 #endif
1352       switches::kAppsCheckoutURL,
1353       switches::kAppsGalleryURL,
1354       switches::kCloudPrintURL,
1355       switches::kCloudPrintXmppEndpoint,
1356       switches::kDisableBundledPpapiFlash,
1357       switches::kEnableBenchmarking,
1358       switches::kEnableNaCl,
1359 #if !defined(DISABLE_NACL)
1360       switches::kEnableNaClDebug,
1361       switches::kEnableNaClNonSfiMode,
1362 #endif
1363       switches::kEnableNetBenchmarking,
1364       switches::kEnableShowModalDialog,
1365       switches::kEnableStreamlinedHostedApps,
1366       switches::kEnableWebBasedSignin,
1367       switches::kJavaScriptHarmony,
1368       switches::kMessageLoopHistogrammer,
1369       switches::kOutOfProcessPdf,
1370       switches::kPlaybackMode,
1371       switches::kPpapiFlashArgs,
1372       switches::kPpapiFlashPath,
1373       switches::kPpapiFlashVersion,
1374       switches::kProfilingAtStart,
1375       switches::kProfilingFile,
1376       switches::kProfilingFlush,
1377       switches::kRecordMode,
1378       translate::switches::kTranslateSecurityOrigin,
1379     };
1380
1381     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1382                                    arraysize(kSwitchNames));
1383   } else if (process_type == switches::kUtilityProcess) {
1384 #if defined(ENABLE_EXTENSIONS)
1385     static const char* const kSwitchNames[] = {
1386       extensions::switches::kAllowHTTPBackgroundPage,
1387       extensions::switches::kEnableExperimentalExtensionApis,
1388       extensions::switches::kExtensionsOnChromeURLs,
1389       extensions::switches::kWhitelistedExtensionID,
1390     };
1391
1392     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1393                                    arraysize(kSwitchNames));
1394 #endif
1395   } else if (process_type == switches::kPluginProcess) {
1396 #if defined(OS_CHROMEOS)
1397     static const char* const kSwitchNames[] = {
1398       chromeos::switches::kLoginProfile,
1399     };
1400
1401     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1402                                    arraysize(kSwitchNames));
1403 #endif
1404   } else if (process_type == switches::kZygoteProcess) {
1405     static const char* const kSwitchNames[] = {
1406       // Load (in-process) Pepper plugins in-process in the zygote pre-sandbox.
1407       switches::kDisableBundledPpapiFlash,
1408 #if !defined(DISABLE_NACL)
1409       switches::kEnableNaClNonSfiMode,
1410       switches::kNaClDangerousNoSandboxNonSfi,
1411 #endif
1412       switches::kPpapiFlashPath,
1413       switches::kPpapiFlashVersion,
1414     };
1415
1416     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1417                                    arraysize(kSwitchNames));
1418   } else if (process_type == switches::kGpuProcess) {
1419     // If --ignore-gpu-blacklist is passed in, don't send in crash reports
1420     // because GPU is expected to be unreliable.
1421     if (browser_command_line.HasSwitch(switches::kIgnoreGpuBlacklist) &&
1422         !command_line->HasSwitch(switches::kDisableBreakpad))
1423       command_line->AppendSwitch(switches::kDisableBreakpad);
1424   }
1425
1426   // The command line switch kEnableBenchmarking needs to be specified along
1427   // with the kEnableStatsTable switch to ensure that the stats table global
1428   // is initialized correctly.
1429   if (command_line->HasSwitch(switches::kEnableBenchmarking))
1430     DCHECK(command_line->HasSwitch(switches::kEnableStatsTable));
1431 }
1432
1433 std::string ChromeContentBrowserClient::GetApplicationLocale() {
1434   if (BrowserThread::CurrentlyOn(BrowserThread::IO))
1435     return g_io_thread_application_locale.Get();
1436   return g_browser_process->GetApplicationLocale();
1437 }
1438
1439 std::string ChromeContentBrowserClient::GetAcceptLangs(
1440     content::BrowserContext* context) {
1441   Profile* profile = Profile::FromBrowserContext(context);
1442   return profile->GetPrefs()->GetString(prefs::kAcceptLanguages);
1443 }
1444
1445 const gfx::ImageSkia* ChromeContentBrowserClient::GetDefaultFavicon() {
1446   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
1447   return rb.GetNativeImageNamed(IDR_DEFAULT_FAVICON).ToImageSkia();
1448 }
1449
1450 bool ChromeContentBrowserClient::AllowAppCache(
1451     const GURL& manifest_url,
1452     const GURL& first_party,
1453     content::ResourceContext* context) {
1454   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1455   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1456   return io_data->GetCookieSettings()->
1457       IsSettingCookieAllowed(manifest_url, first_party);
1458 }
1459
1460 bool ChromeContentBrowserClient::AllowServiceWorker(
1461     const GURL& scope,
1462     const GURL& first_party_url,
1463     content::ResourceContext* context) {
1464   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1465   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1466   return io_data->GetCookieSettings()->
1467       IsSettingCookieAllowed(scope, first_party_url);
1468 }
1469
1470 bool ChromeContentBrowserClient::AllowGetCookie(
1471     const GURL& url,
1472     const GURL& first_party,
1473     const net::CookieList& cookie_list,
1474     content::ResourceContext* context,
1475     int render_process_id,
1476     int render_frame_id) {
1477   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1478   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1479   bool allow = io_data->GetCookieSettings()->
1480       IsReadingCookieAllowed(url, first_party);
1481
1482   BrowserThread::PostTask(
1483       BrowserThread::UI, FROM_HERE,
1484       base::Bind(&TabSpecificContentSettings::CookiesRead, render_process_id,
1485                  render_frame_id, url, first_party, cookie_list, !allow, true));
1486   return allow;
1487 }
1488
1489 bool ChromeContentBrowserClient::AllowSetCookie(
1490     const GURL& url,
1491     const GURL& first_party,
1492     const std::string& cookie_line,
1493     content::ResourceContext* context,
1494     int render_process_id,
1495     int render_frame_id,
1496     net::CookieOptions* options) {
1497   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1498   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1499   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1500   bool allow = cookie_settings->IsSettingCookieAllowed(url, first_party);
1501
1502   if (prerender_tracker_) {
1503     prerender_tracker_->OnCookieChangedForURL(
1504         render_process_id,
1505         context->GetRequestContext()->cookie_store()->GetCookieMonster(),
1506         url);
1507   }
1508
1509   BrowserThread::PostTask(
1510       BrowserThread::UI, FROM_HERE,
1511       base::Bind(&TabSpecificContentSettings::CookieChanged, render_process_id,
1512                  render_frame_id, url, first_party, cookie_line, *options,
1513                  !allow));
1514   return allow;
1515 }
1516
1517 bool ChromeContentBrowserClient::AllowSaveLocalState(
1518     content::ResourceContext* context) {
1519   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1520   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1521   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1522   ContentSetting setting = cookie_settings->GetDefaultCookieSetting(NULL);
1523
1524   // TODO(bauerb): Should we also disallow local state if the default is BLOCK?
1525   // Could we even support per-origin settings?
1526   return setting != CONTENT_SETTING_SESSION_ONLY;
1527 }
1528
1529 bool ChromeContentBrowserClient::AllowWorkerDatabase(
1530     const GURL& url,
1531     const base::string16& name,
1532     const base::string16& display_name,
1533     unsigned long estimated_size,
1534     content::ResourceContext* context,
1535     const std::vector<std::pair<int, int> >& render_frames) {
1536   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1537   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1538   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1539   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1540
1541   // Record access to database for potential display in UI.
1542   std::vector<std::pair<int, int> >::const_iterator i;
1543   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1544     BrowserThread::PostTask(
1545         BrowserThread::UI, FROM_HERE,
1546         base::Bind(&TabSpecificContentSettings::WebDatabaseAccessed,
1547                    i->first, i->second, url, name, display_name, !allow));
1548   }
1549
1550   return allow;
1551 }
1552
1553 void ChromeContentBrowserClient::AllowWorkerFileSystem(
1554     const GURL& url,
1555     content::ResourceContext* context,
1556     const std::vector<std::pair<int, int> >& render_frames,
1557     base::Callback<void(bool)> callback) {
1558   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1559   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1560   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1561   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1562
1563 #if defined(ENABLE_EXTENSIONS)
1564   GuestPermissionRequestHelper(url, render_frames, callback, allow);
1565 #else
1566   FileSystemAccessed(url, render_frames, callback, allow);
1567 #endif
1568 }
1569
1570 #if defined(ENABLE_EXTENSIONS)
1571 void ChromeContentBrowserClient::GuestPermissionRequestHelper(
1572     const GURL& url,
1573     const std::vector<std::pair<int, int> >& render_frames,
1574     base::Callback<void(bool)> callback,
1575     bool allow) {
1576   DCHECK(BrowserThread:: CurrentlyOn(BrowserThread::IO));
1577   std::vector<std::pair<int, int> >::const_iterator i;
1578   std::map<int, int> process_map;
1579   std::map<int, int>::const_iterator it;
1580   bool has_web_view_guest = false;
1581   // Record access to file system for potential display in UI.
1582   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1583     if (process_map.find(i->first) != process_map.end())
1584       continue;
1585
1586     process_map.insert(std::pair<int, int>(i->first, i->second));
1587
1588     if (extensions::WebViewRendererState::GetInstance()->IsGuest(i->first))
1589       has_web_view_guest = true;
1590   }
1591   if (!has_web_view_guest) {
1592     FileSystemAccessed(url, render_frames, callback, allow);
1593     return;
1594   }
1595   DCHECK_EQ(1U, process_map.size());
1596   it = process_map.begin();
1597   BrowserThread::PostTask(
1598       BrowserThread::UI,
1599       FROM_HERE,
1600       base::Bind(&ChromeContentBrowserClient::
1601                   RequestFileSystemPermissionOnUIThread,
1602                   it->first,
1603                   it->second,
1604                   url,
1605                   allow,
1606                   base::Bind(&ChromeContentBrowserClient::FileSystemAccessed,
1607                             weak_factory_.GetWeakPtr(),
1608                             url,
1609                             render_frames,
1610                             callback)));
1611 }
1612
1613 void ChromeContentBrowserClient::RequestFileSystemPermissionOnUIThread(
1614     int render_process_id,
1615     int render_frame_id,
1616     const GURL& url,
1617     bool allowed_by_default,
1618     const base::Callback<void(bool)>& callback) {
1619   DCHECK(BrowserThread:: CurrentlyOn(BrowserThread::UI));
1620   extensions::WebViewPermissionHelper* web_view_permission_helper =
1621       extensions::WebViewPermissionHelper::FromFrameID(
1622           render_process_id, render_frame_id);
1623   web_view_permission_helper->RequestFileSystemPermission(url,
1624                                                           allowed_by_default,
1625                                                           callback);
1626 }
1627 #endif
1628
1629 void ChromeContentBrowserClient::FileSystemAccessed(
1630     const GURL& url,
1631     const std::vector<std::pair<int, int> >& render_frames,
1632     base::Callback<void(bool)> callback,
1633     bool allow) {
1634   // Record access to file system for potential display in UI.
1635   std::vector<std::pair<int, int> >::const_iterator i;
1636   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1637     BrowserThread::PostTask(
1638         BrowserThread::UI,
1639         FROM_HERE,
1640         base::Bind(&TabSpecificContentSettings::FileSystemAccessed,
1641                    i->first, i->second, url, !allow));
1642   }
1643   callback.Run(allow);
1644 }
1645
1646 bool ChromeContentBrowserClient::AllowWorkerIndexedDB(
1647     const GURL& url,
1648     const base::string16& name,
1649     content::ResourceContext* context,
1650     const std::vector<std::pair<int, int> >& render_frames) {
1651   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1652   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1653   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1654   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1655
1656   // Record access to IndexedDB for potential display in UI.
1657   std::vector<std::pair<int, int> >::const_iterator i;
1658   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1659     BrowserThread::PostTask(
1660         BrowserThread::UI, FROM_HERE,
1661         base::Bind(&TabSpecificContentSettings::IndexedDBAccessed,
1662                    i->first, i->second, url, name, !allow));
1663   }
1664
1665   return allow;
1666 }
1667
1668 net::URLRequestContext*
1669 ChromeContentBrowserClient::OverrideRequestContextForURL(
1670     const GURL& url, content::ResourceContext* context) {
1671   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1672 #if defined(ENABLE_EXTENSIONS)
1673   if (url.SchemeIs(extensions::kExtensionScheme)) {
1674     ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1675     return io_data->extensions_request_context();
1676   }
1677 #endif
1678
1679   return NULL;
1680 }
1681
1682 QuotaPermissionContext*
1683 ChromeContentBrowserClient::CreateQuotaPermissionContext() {
1684   return new ChromeQuotaPermissionContext();
1685 }
1686
1687 void ChromeContentBrowserClient::AllowCertificateError(
1688     int render_process_id,
1689     int render_frame_id,
1690     int cert_error,
1691     const net::SSLInfo& ssl_info,
1692     const GURL& request_url,
1693     ResourceType resource_type,
1694     bool overridable,
1695     bool strict_enforcement,
1696     bool expired_previous_decision,
1697     const base::Callback<void(bool)>& callback,
1698     content::CertificateRequestResultType* result) {
1699   if (resource_type != content::RESOURCE_TYPE_MAIN_FRAME) {
1700     // A sub-resource has a certificate error.  The user doesn't really
1701     // have a context for making the right decision, so block the
1702     // request hard, without an info bar to allow showing the insecure
1703     // content.
1704     *result = content::CERTIFICATE_REQUEST_RESULT_TYPE_DENY;
1705     return;
1706   }
1707
1708   // If the tab is being prerendered, cancel the prerender and the request.
1709   content::RenderFrameHost* render_frame_host =
1710       content::RenderFrameHost::FromID(render_process_id, render_frame_id);
1711   WebContents* tab = WebContents::FromRenderFrameHost(render_frame_host);
1712   if (!tab) {
1713     NOTREACHED();
1714     return;
1715   }
1716
1717   prerender::PrerenderContents* prerender_contents =
1718       prerender::PrerenderContents::FromWebContents(tab);
1719   if (prerender_contents) {
1720     prerender_contents->Destroy(prerender::FINAL_STATUS_SSL_ERROR);
1721     *result = content::CERTIFICATE_REQUEST_RESULT_TYPE_CANCEL;
1722     return;
1723   }
1724
1725 #if defined(ENABLE_CAPTIVE_PORTAL_DETECTION)
1726   CaptivePortalTabHelper* captive_portal_tab_helper =
1727       CaptivePortalTabHelper::FromWebContents(tab);
1728   if (captive_portal_tab_helper)
1729     captive_portal_tab_helper->OnSSLCertError(ssl_info);
1730 #endif
1731
1732   // Otherwise, display an SSL blocking page. The interstitial page takes
1733   // ownership of ssl_blocking_page.
1734   int options_mask = 0;
1735   if (overridable)
1736     options_mask |= SSLBlockingPage::OVERRIDABLE;
1737   if (strict_enforcement)
1738     options_mask |= SSLBlockingPage::STRICT_ENFORCEMENT;
1739   if (expired_previous_decision)
1740     options_mask |= SSLBlockingPage::EXPIRED_BUT_PREVIOUSLY_ALLOWED;
1741   SSLBlockingPage* ssl_blocking_page = new SSLBlockingPage(
1742       tab, cert_error, ssl_info, request_url, options_mask, callback);
1743   ssl_blocking_page->Show();
1744 }
1745
1746 void ChromeContentBrowserClient::SelectClientCertificate(
1747     int render_process_id,
1748     int render_frame_id,
1749     net::SSLCertRequestInfo* cert_request_info,
1750     const base::Callback<void(net::X509Certificate*)>& callback) {
1751   content::RenderFrameHost* rfh = content::RenderFrameHost::FromID(
1752       render_process_id, render_frame_id);
1753   WebContents* tab = WebContents::FromRenderFrameHost(rfh);
1754   if (!tab) {
1755     // TODO(davidben): This makes the request hang, but returning no certificate
1756     // also breaks. It should abort the request. See https://crbug.com/417092
1757     return;
1758   }
1759
1760   prerender::PrerenderContents* prerender_contents =
1761       prerender::PrerenderContents::FromWebContents(tab);
1762   if (prerender_contents) {
1763     prerender_contents->Destroy(
1764         prerender::FINAL_STATUS_SSL_CLIENT_CERTIFICATE_REQUESTED);
1765     return;
1766   }
1767
1768   GURL requesting_url("https://" + cert_request_info->host_and_port.ToString());
1769   DCHECK(requesting_url.is_valid())
1770       << "Invalid URL string: https://"
1771       << cert_request_info->host_and_port.ToString();
1772
1773   Profile* profile = Profile::FromBrowserContext(tab->GetBrowserContext());
1774   scoped_ptr<base::Value> filter =
1775       profile->GetHostContentSettingsMap()->GetWebsiteSetting(
1776           requesting_url,
1777           requesting_url,
1778           CONTENT_SETTINGS_TYPE_AUTO_SELECT_CERTIFICATE,
1779           std::string(),
1780           NULL);
1781
1782   if (filter.get()) {
1783     // Try to automatically select a client certificate.
1784     if (filter->IsType(base::Value::TYPE_DICTIONARY)) {
1785       base::DictionaryValue* filter_dict =
1786           static_cast<base::DictionaryValue*>(filter.get());
1787
1788       const std::vector<scoped_refptr<net::X509Certificate> >&
1789           all_client_certs = cert_request_info->client_certs;
1790       for (size_t i = 0; i < all_client_certs.size(); ++i) {
1791         if (CertMatchesFilter(*all_client_certs[i].get(), *filter_dict)) {
1792           // Use the first certificate that is matched by the filter.
1793           callback.Run(all_client_certs[i].get());
1794           return;
1795         }
1796       }
1797     } else {
1798       NOTREACHED();
1799     }
1800   }
1801
1802   chrome::ShowSSLClientCertificateSelector(tab, cert_request_info, callback);
1803 }
1804
1805 void ChromeContentBrowserClient::AddCertificate(
1806     net::CertificateMimeType cert_type,
1807     const void* cert_data,
1808     size_t cert_size,
1809     int render_process_id,
1810     int render_frame_id) {
1811   chrome::SSLAddCertificate(cert_type, cert_data, cert_size,
1812                             render_process_id, render_frame_id);
1813 }
1814
1815 content::MediaObserver* ChromeContentBrowserClient::GetMediaObserver() {
1816   return MediaCaptureDevicesDispatcher::GetInstance();
1817 }
1818
1819 void ChromeContentBrowserClient::RequestDesktopNotificationPermission(
1820     const GURL& source_origin,
1821     content::RenderFrameHost* render_frame_host,
1822     const base::Callback<void(blink::WebNotificationPermission)>& callback) {
1823 #if defined(ENABLE_NOTIFICATIONS)
1824   // Skip showing the infobar if the request comes from an extension, and that
1825   // extension has the 'notify' permission. (If the extension does not have the
1826   // permission, the user will still be prompted.)
1827   Profile* profile = Profile::FromBrowserContext(
1828       render_frame_host->GetSiteInstance()->GetBrowserContext());
1829   DesktopNotificationService* notification_service =
1830       DesktopNotificationServiceFactory::GetForProfile(profile);
1831   WebContents* web_contents = WebContents::FromRenderFrameHost(
1832       render_frame_host);
1833   int render_process_id = render_frame_host->GetProcess()->GetID();
1834   const PermissionRequestID request_id(render_process_id,
1835       web_contents->GetRoutingID(),
1836       -1 /* bridge id */,
1837       GURL());
1838
1839   notification_service->RequestNotificationPermission(
1840       web_contents,
1841       request_id,
1842       source_origin,
1843       // TODO(peter): plumb user_gesture over IPC
1844       true,
1845       callback);
1846
1847 #else
1848   NOTIMPLEMENTED();
1849 #endif
1850 }
1851
1852 blink::WebNotificationPermission
1853 ChromeContentBrowserClient::CheckDesktopNotificationPermission(
1854     const GURL& source_origin,
1855     content::ResourceContext* context,
1856     int render_process_id) {
1857 #if defined(ENABLE_NOTIFICATIONS)
1858   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1859
1860   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1861 #if defined(ENABLE_EXTENSIONS)
1862   InfoMap* extension_info_map = io_data->GetExtensionInfoMap();
1863
1864   // We want to see if there is an extension that hasn't been manually disabled
1865   // that has the notifications permission and applies to this security origin.
1866   // First, get the list of extensions with permission for the origin.
1867   extensions::ExtensionSet extensions;
1868   extension_info_map->GetExtensionsWithAPIPermissionForSecurityOrigin(
1869       source_origin,
1870       render_process_id,
1871       extensions::APIPermission::kNotifications,
1872       &extensions);
1873   for (extensions::ExtensionSet::const_iterator iter = extensions.begin();
1874        iter != extensions.end(); ++iter) {
1875     // Then, check to see if it's been disabled by the user.
1876     if (!extension_info_map->AreNotificationsDisabled((*iter)->id()))
1877       return blink::WebNotificationPermissionAllowed;
1878   }
1879 #endif
1880
1881   // No enabled extensions exist, so check the normal host content settings.
1882   HostContentSettingsMap* host_content_settings_map =
1883       io_data->GetHostContentSettingsMap();
1884   ContentSetting setting = host_content_settings_map->GetContentSetting(
1885       source_origin,
1886       source_origin,
1887       CONTENT_SETTINGS_TYPE_NOTIFICATIONS,
1888       NO_RESOURCE_IDENTIFIER);
1889
1890   if (setting == CONTENT_SETTING_ALLOW)
1891     return blink::WebNotificationPermissionAllowed;
1892   if (setting == CONTENT_SETTING_BLOCK)
1893     return blink::WebNotificationPermissionDenied;
1894   return blink::WebNotificationPermissionDefault;
1895 #else
1896   return blink::WebNotificationPermissionAllowed;
1897 #endif
1898 }
1899
1900 void ChromeContentBrowserClient::ShowDesktopNotification(
1901     const content::ShowDesktopNotificationHostMsgParams& params,
1902     RenderFrameHost* render_frame_host,
1903     scoped_ptr<content::DesktopNotificationDelegate> delegate,
1904     base::Closure* cancel_callback) {
1905 #if defined(ENABLE_NOTIFICATIONS)
1906   content::RenderProcessHost* process = render_frame_host->GetProcess();
1907   Profile* profile = Profile::FromBrowserContext(process->GetBrowserContext());
1908   DesktopNotificationService* service =
1909       DesktopNotificationServiceFactory::GetForProfile(profile);
1910   service->ShowDesktopNotification(
1911       params, render_frame_host, delegate.Pass(), cancel_callback);
1912
1913   profile->GetHostContentSettingsMap()->UpdateLastUsage(
1914       params.origin, params.origin, CONTENT_SETTINGS_TYPE_NOTIFICATIONS);
1915 #else
1916   NOTIMPLEMENTED();
1917 #endif
1918 }
1919
1920 void ChromeContentBrowserClient::RequestGeolocationPermission(
1921     content::WebContents* web_contents,
1922     int bridge_id,
1923     const GURL& requesting_frame,
1924     bool user_gesture,
1925     const base::Callback<void(bool)>& result_callback) {
1926   int render_process_id = web_contents->GetRenderProcessHost()->GetID();
1927   int render_view_id = web_contents->GetRenderViewHost()->GetRoutingID();
1928
1929   const PermissionRequestID request_id(render_process_id,
1930                                        render_view_id,
1931                                        bridge_id,
1932                                        requesting_frame);
1933   GeolocationPermissionContextFactory::GetForProfile(
1934       Profile::FromBrowserContext(web_contents->GetBrowserContext()))->
1935           RequestPermission(web_contents, request_id,
1936                             requesting_frame.GetOrigin(), user_gesture,
1937                             result_callback);
1938 }
1939
1940 void ChromeContentBrowserClient::CancelGeolocationPermissionRequest(
1941     content::WebContents* web_contents,
1942     int bridge_id,
1943     const GURL& requesting_frame) {
1944   int render_process_id = web_contents->GetRenderProcessHost()->GetID();
1945   int render_view_id = web_contents->GetRenderViewHost()->GetRoutingID();
1946
1947   const PermissionRequestID request_id(render_process_id,
1948                                        render_view_id,
1949                                        bridge_id,
1950                                        requesting_frame);
1951   GeolocationPermissionContextFactory::GetForProfile(
1952         Profile::FromBrowserContext(web_contents->GetBrowserContext()))->
1953             CancelPermissionRequest(web_contents, request_id);
1954 }
1955
1956 void ChromeContentBrowserClient::RequestMidiSysExPermission(
1957     content::WebContents* web_contents,
1958     int bridge_id,
1959     const GURL& requesting_frame,
1960     bool user_gesture,
1961     base::Callback<void(bool)> result_callback,
1962     base::Closure* cancel_callback) {
1963   MidiPermissionContext* context =
1964       MidiPermissionContextFactory::GetForProfile(
1965           Profile::FromBrowserContext(web_contents->GetBrowserContext()));
1966   int renderer_id = web_contents->GetRenderProcessHost()->GetID();
1967   int render_view_id = web_contents->GetRenderViewHost()->GetRoutingID();
1968   const PermissionRequestID id(renderer_id, render_view_id, bridge_id, GURL());
1969
1970   context->RequestPermission(web_contents, id, requesting_frame,
1971                              user_gesture, result_callback);
1972 }
1973
1974 void ChromeContentBrowserClient::DidUseGeolocationPermission(
1975     content::WebContents* web_contents,
1976     const GURL& frame_url,
1977     const GURL& main_frame_url) {
1978   Profile::FromBrowserContext(web_contents->GetBrowserContext())
1979       ->GetHostContentSettingsMap()
1980       ->UpdateLastUsage(
1981           frame_url, main_frame_url, CONTENT_SETTINGS_TYPE_GEOLOCATION);
1982 }
1983
1984 void ChromeContentBrowserClient::RequestProtectedMediaIdentifierPermission(
1985     content::WebContents* web_contents,
1986     const GURL& origin,
1987     base::Callback<void(bool)> result_callback,
1988     base::Closure* cancel_callback) {
1989 #if defined(OS_ANDROID)
1990   ProtectedMediaIdentifierPermissionContext* context =
1991       ProtectedMediaIdentifierPermissionContextFactory::GetForProfile(
1992           Profile::FromBrowserContext(web_contents->GetBrowserContext()));
1993   context->RequestProtectedMediaIdentifierPermission(web_contents,
1994                                                      origin,
1995                                                      result_callback,
1996                                                      cancel_callback);
1997 #else
1998   NOTIMPLEMENTED();
1999   result_callback.Run(false);
2000 #endif  // defined(OS_ANDROID)
2001 }
2002
2003 bool ChromeContentBrowserClient::CanCreateWindow(
2004     const GURL& opener_url,
2005     const GURL& opener_top_level_frame_url,
2006     const GURL& source_origin,
2007     WindowContainerType container_type,
2008     const GURL& target_url,
2009     const content::Referrer& referrer,
2010     WindowOpenDisposition disposition,
2011     const WebWindowFeatures& features,
2012     bool user_gesture,
2013     bool opener_suppressed,
2014     content::ResourceContext* context,
2015     int render_process_id,
2016     int opener_id,
2017     bool* no_javascript_access) {
2018   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
2019
2020   *no_javascript_access = false;
2021
2022   // If the opener is trying to create a background window but doesn't have
2023   // the appropriate permission, fail the attempt.
2024   if (container_type == WINDOW_CONTAINER_TYPE_BACKGROUND) {
2025 #if defined(ENABLE_EXTENSIONS)
2026     ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
2027     InfoMap* map = io_data->GetExtensionInfoMap();
2028     if (!map->SecurityOriginHasAPIPermission(
2029             source_origin,
2030             render_process_id,
2031             APIPermission::kBackground)) {
2032       return false;
2033     }
2034
2035     // Note: this use of GetExtensionOrAppByURL is safe but imperfect.  It may
2036     // return a recently installed Extension even if this CanCreateWindow call
2037     // was made by an old copy of the page in a normal web process.  That's ok,
2038     // because the permission check above would have caused an early return
2039     // already. We must use the full URL to find hosted apps, though, and not
2040     // just the origin.
2041     const Extension* extension =
2042         map->extensions().GetExtensionOrAppByURL(opener_url);
2043     if (extension && !extensions::BackgroundInfo::AllowJSAccess(extension))
2044       *no_javascript_access = true;
2045 #endif
2046
2047     return true;
2048   }
2049
2050 #if defined(ENABLE_EXTENSIONS)
2051   if (extensions::WebViewRendererState::GetInstance()->IsGuest(
2052       render_process_id))
2053     return true;
2054 #endif
2055
2056   HostContentSettingsMap* content_settings =
2057       ProfileIOData::FromResourceContext(context)->GetHostContentSettingsMap();
2058   BlockedWindowParams blocked_params(target_url,
2059                                      referrer,
2060                                      disposition,
2061                                      features,
2062                                      user_gesture,
2063                                      opener_suppressed,
2064                                      render_process_id,
2065                                      opener_id);
2066
2067   if (!user_gesture && !CommandLine::ForCurrentProcess()->HasSwitch(
2068         switches::kDisablePopupBlocking)) {
2069     if (content_settings->GetContentSetting(opener_top_level_frame_url,
2070                                             opener_top_level_frame_url,
2071                                             CONTENT_SETTINGS_TYPE_POPUPS,
2072                                             std::string()) !=
2073         CONTENT_SETTING_ALLOW) {
2074       BrowserThread::PostTask(BrowserThread::UI,
2075                               FROM_HERE,
2076                               base::Bind(&HandleBlockedPopupOnUIThread,
2077                                          blocked_params));
2078       return false;
2079     }
2080   }
2081
2082 #if defined(OS_ANDROID)
2083   if (SingleTabModeTabHelper::IsRegistered(render_process_id, opener_id)) {
2084     BrowserThread::PostTask(BrowserThread::UI,
2085                             FROM_HERE,
2086                             base::Bind(&HandleSingleTabModeBlockOnUIThread,
2087                                        blocked_params));
2088     return false;
2089   }
2090 #endif
2091
2092   return true;
2093 }
2094
2095 void ChromeContentBrowserClient::ResourceDispatcherHostCreated() {
2096   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
2097   prerender_tracker_ = g_browser_process->prerender_tracker();
2098   return g_browser_process->ResourceDispatcherHostCreated();
2099 }
2100
2101 // TODO(tommi): Rename from Get to Create.
2102 content::SpeechRecognitionManagerDelegate*
2103     ChromeContentBrowserClient::GetSpeechRecognitionManagerDelegate() {
2104   return new speech::ChromeSpeechRecognitionManagerDelegate();
2105 }
2106
2107 net::NetLog* ChromeContentBrowserClient::GetNetLog() {
2108   return g_browser_process->net_log();
2109 }
2110
2111 AccessTokenStore* ChromeContentBrowserClient::CreateAccessTokenStore() {
2112   return new ChromeAccessTokenStore();
2113 }
2114
2115 bool ChromeContentBrowserClient::IsFastShutdownPossible() {
2116   return true;
2117 }
2118
2119 void ChromeContentBrowserClient::OverrideWebkitPrefs(
2120     RenderViewHost* rvh, const GURL& url, WebPreferences* web_prefs) {
2121   Profile* profile = Profile::FromBrowserContext(
2122       rvh->GetProcess()->GetBrowserContext());
2123   PrefService* prefs = profile->GetPrefs();
2124
2125   // Fill per-script font preferences. These are not registered on Android
2126   // - http://crbug.com/308033.
2127 #if !defined(OS_ANDROID)
2128   FontFamilyCache::FillFontFamilyMap(profile,
2129                                      prefs::kWebKitStandardFontFamilyMap,
2130                                      &web_prefs->standard_font_family_map);
2131   FontFamilyCache::FillFontFamilyMap(profile,
2132                                      prefs::kWebKitFixedFontFamilyMap,
2133                                      &web_prefs->fixed_font_family_map);
2134   FontFamilyCache::FillFontFamilyMap(profile,
2135                                      prefs::kWebKitSerifFontFamilyMap,
2136                                      &web_prefs->serif_font_family_map);
2137   FontFamilyCache::FillFontFamilyMap(profile,
2138                                      prefs::kWebKitSansSerifFontFamilyMap,
2139                                      &web_prefs->sans_serif_font_family_map);
2140   FontFamilyCache::FillFontFamilyMap(profile,
2141                                      prefs::kWebKitCursiveFontFamilyMap,
2142                                      &web_prefs->cursive_font_family_map);
2143   FontFamilyCache::FillFontFamilyMap(profile,
2144                                      prefs::kWebKitFantasyFontFamilyMap,
2145                                      &web_prefs->fantasy_font_family_map);
2146   FontFamilyCache::FillFontFamilyMap(profile,
2147                                      prefs::kWebKitPictographFontFamilyMap,
2148                                      &web_prefs->pictograph_font_family_map);
2149 #endif
2150
2151   web_prefs->default_font_size =
2152       prefs->GetInteger(prefs::kWebKitDefaultFontSize);
2153   web_prefs->default_fixed_font_size =
2154       prefs->GetInteger(prefs::kWebKitDefaultFixedFontSize);
2155   web_prefs->minimum_font_size =
2156       prefs->GetInteger(prefs::kWebKitMinimumFontSize);
2157   web_prefs->minimum_logical_font_size =
2158       prefs->GetInteger(prefs::kWebKitMinimumLogicalFontSize);
2159
2160   web_prefs->default_encoding = prefs->GetString(prefs::kDefaultCharset);
2161
2162   web_prefs->javascript_can_open_windows_automatically =
2163       prefs->GetBoolean(prefs::kWebKitJavascriptCanOpenWindowsAutomatically);
2164   web_prefs->dom_paste_enabled =
2165       prefs->GetBoolean(prefs::kWebKitDomPasteEnabled);
2166   web_prefs->shrinks_standalone_images_to_fit =
2167       prefs->GetBoolean(prefs::kWebKitShrinksStandaloneImagesToFit);
2168   web_prefs->tabs_to_links = prefs->GetBoolean(prefs::kWebkitTabsToLinks);
2169
2170   if (!prefs->GetBoolean(prefs::kWebKitJavascriptEnabled))
2171     web_prefs->javascript_enabled = false;
2172   if (!prefs->GetBoolean(prefs::kWebKitWebSecurityEnabled))
2173     web_prefs->web_security_enabled = false;
2174   if (!prefs->GetBoolean(prefs::kWebKitPluginsEnabled))
2175     web_prefs->plugins_enabled = false;
2176   if (!prefs->GetBoolean(prefs::kWebKitJavaEnabled))
2177     web_prefs->java_enabled = false;
2178   web_prefs->loads_images_automatically =
2179       prefs->GetBoolean(prefs::kWebKitLoadsImagesAutomatically);
2180
2181   if (prefs->GetBoolean(prefs::kDisable3DAPIs))
2182     web_prefs->experimental_webgl_enabled = false;
2183
2184   web_prefs->allow_displaying_insecure_content =
2185       prefs->GetBoolean(prefs::kWebKitAllowDisplayingInsecureContent);
2186   web_prefs->allow_running_insecure_content =
2187       prefs->GetBoolean(prefs::kWebKitAllowRunningInsecureContent);
2188 #if defined(OS_ANDROID)
2189   web_prefs->font_scale_factor =
2190       static_cast<float>(prefs->GetDouble(prefs::kWebKitFontScaleFactor));
2191   web_prefs->device_scale_adjustment = GetDeviceScaleAdjustment();
2192   web_prefs->force_enable_zoom =
2193       prefs->GetBoolean(prefs::kWebKitForceEnableZoom);
2194 #endif
2195
2196 #if defined(OS_ANDROID)
2197   web_prefs->password_echo_enabled =
2198       prefs->GetBoolean(prefs::kWebKitPasswordEchoEnabled);
2199 #else
2200   web_prefs->password_echo_enabled = browser_defaults::kPasswordEchoEnabled;
2201 #endif
2202
2203   web_prefs->asynchronous_spell_checking_enabled = true;
2204   web_prefs->unified_textchecker_enabled = true;
2205
2206   web_prefs->uses_universal_detector =
2207       prefs->GetBoolean(prefs::kWebKitUsesUniversalDetector);
2208   web_prefs->text_areas_are_resizable =
2209       prefs->GetBoolean(prefs::kWebKitTextAreasAreResizable);
2210   web_prefs->hyperlink_auditing_enabled =
2211       prefs->GetBoolean(prefs::kEnableHyperlinkAuditing);
2212
2213   // Make sure we will set the default_encoding with canonical encoding name.
2214   web_prefs->default_encoding =
2215       CharacterEncoding::GetCanonicalEncodingNameByAliasName(
2216           web_prefs->default_encoding);
2217   if (web_prefs->default_encoding.empty()) {
2218     prefs->ClearPref(prefs::kDefaultCharset);
2219     web_prefs->default_encoding = prefs->GetString(prefs::kDefaultCharset);
2220   }
2221   DCHECK(!web_prefs->default_encoding.empty());
2222
2223   for (size_t i = 0; i < extra_parts_.size(); ++i)
2224     extra_parts_[i]->OverrideWebkitPrefs(rvh, url, web_prefs);
2225 }
2226
2227 void ChromeContentBrowserClient::BrowserURLHandlerCreated(
2228     BrowserURLHandler* handler) {
2229   for (size_t i = 0; i < extra_parts_.size(); ++i)
2230     extra_parts_[i]->BrowserURLHandlerCreated(handler);
2231
2232   // about: handler. Must come before chrome: handler, since it will
2233   // rewrite about: urls to chrome: URLs and then expect chrome: to
2234   // actually handle them.
2235   handler->AddHandlerPair(&WillHandleBrowserAboutURL,
2236                           BrowserURLHandler::null_handler());
2237
2238 #if defined(OS_ANDROID)
2239   // Handler to rewrite chrome://newtab on Android.
2240   handler->AddHandlerPair(&chrome::android::HandleAndroidNewTabURL,
2241                           BrowserURLHandler::null_handler());
2242 #else
2243   // Handler to rewrite chrome://newtab for InstantExtended.
2244   handler->AddHandlerPair(&chrome::HandleNewTabURLRewrite,
2245                           &chrome::HandleNewTabURLReverseRewrite);
2246 #endif
2247
2248   // chrome: & friends.
2249   handler->AddHandlerPair(&HandleWebUI, &HandleWebUIReverse);
2250 }
2251
2252 void ChromeContentBrowserClient::ClearCache(RenderViewHost* rvh) {
2253   Profile* profile = Profile::FromBrowserContext(
2254       rvh->GetSiteInstance()->GetProcess()->GetBrowserContext());
2255   BrowsingDataRemover* remover =
2256       BrowsingDataRemover::CreateForUnboundedRange(profile);
2257   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
2258                   BrowsingDataHelper::UNPROTECTED_WEB);
2259   // BrowsingDataRemover takes care of deleting itself when done.
2260 }
2261
2262 void ChromeContentBrowserClient::ClearCookies(RenderViewHost* rvh) {
2263   Profile* profile = Profile::FromBrowserContext(
2264       rvh->GetSiteInstance()->GetProcess()->GetBrowserContext());
2265   BrowsingDataRemover* remover =
2266       BrowsingDataRemover::CreateForUnboundedRange(profile);
2267   int remove_mask = BrowsingDataRemover::REMOVE_SITE_DATA;
2268   remover->Remove(remove_mask, BrowsingDataHelper::UNPROTECTED_WEB);
2269   // BrowsingDataRemover takes care of deleting itself when done.
2270 }
2271
2272 base::FilePath ChromeContentBrowserClient::GetDefaultDownloadDirectory() {
2273   return DownloadPrefs::GetDefaultDownloadDirectory();
2274 }
2275
2276 std::string ChromeContentBrowserClient::GetDefaultDownloadName() {
2277   return l10n_util::GetStringUTF8(IDS_DEFAULT_DOWNLOAD_FILENAME);
2278 }
2279
2280 void ChromeContentBrowserClient::DidCreatePpapiPlugin(
2281     content::BrowserPpapiHost* browser_host) {
2282 #if defined(ENABLE_PLUGINS)
2283   browser_host->GetPpapiHost()->AddHostFactoryFilter(
2284       scoped_ptr<ppapi::host::HostFactory>(
2285           new ChromeBrowserPepperHostFactory(browser_host)));
2286 #endif
2287 }
2288
2289 content::BrowserPpapiHost*
2290     ChromeContentBrowserClient::GetExternalBrowserPpapiHost(
2291         int plugin_process_id) {
2292 #if !defined(DISABLE_NACL)
2293   content::BrowserChildProcessHostIterator iter(PROCESS_TYPE_NACL_LOADER);
2294   while (!iter.Done()) {
2295     nacl::NaClProcessHost* host = static_cast<nacl::NaClProcessHost*>(
2296         iter.GetDelegate());
2297     if (host->process() &&
2298         host->process()->GetData().id == plugin_process_id) {
2299       // Found the plugin.
2300       return host->browser_ppapi_host();
2301     }
2302     ++iter;
2303   }
2304 #endif
2305   return NULL;
2306 }
2307
2308 bool ChromeContentBrowserClient::AllowPepperSocketAPI(
2309     content::BrowserContext* browser_context,
2310     const GURL& url,
2311     bool private_api,
2312     const content::SocketPermissionRequest* params) {
2313 #if defined(ENABLE_EXTENSIONS)
2314   Profile* profile = Profile::FromBrowserContext(browser_context);
2315   const extensions::ExtensionSet* extension_set = NULL;
2316   if (profile) {
2317     const ExtensionService* ext_service =
2318         extensions::ExtensionSystem::Get(profile)->extension_service();
2319     if (ext_service) {
2320       extension_set = ext_service->extensions();
2321     }
2322   }
2323
2324   if (private_api) {
2325     // Access to private socket APIs is controlled by the whitelist.
2326     if (IsExtensionOrSharedModuleWhitelisted(url, extension_set,
2327                                              allowed_socket_origins_)) {
2328       return true;
2329     }
2330   } else {
2331     // Access to public socket APIs is controlled by extension permissions.
2332     if (url.is_valid() && url.SchemeIs(extensions::kExtensionScheme) &&
2333         extension_set) {
2334       const Extension* extension = extension_set->GetByID(url.host());
2335       if (extension) {
2336         const extensions::PermissionsData* permissions_data =
2337             extension->permissions_data();
2338         if (params) {
2339           extensions::SocketPermission::CheckParam check_params(
2340               params->type, params->host, params->port);
2341           if (permissions_data->CheckAPIPermissionWithParam(
2342                   extensions::APIPermission::kSocket, &check_params)) {
2343             return true;
2344           }
2345         } else if (permissions_data->HasAPIPermission(
2346                        extensions::APIPermission::kSocket)) {
2347           return true;
2348         }
2349       }
2350     }
2351   }
2352
2353   // Allow both public and private APIs if the command line says so.
2354   return IsHostAllowedByCommandLine(url, extension_set,
2355                                     switches::kAllowNaClSocketAPI);
2356 #else
2357   return false;
2358 #endif
2359 }
2360
2361 ui::SelectFilePolicy* ChromeContentBrowserClient::CreateSelectFilePolicy(
2362     WebContents* web_contents) {
2363   return new ChromeSelectFilePolicy(web_contents);
2364 }
2365
2366 void ChromeContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
2367     std::vector<std::string>* additional_allowed_schemes) {
2368   ContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
2369       additional_allowed_schemes);
2370   additional_allowed_schemes->push_back(content::kChromeDevToolsScheme);
2371   additional_allowed_schemes->push_back(content::kChromeUIScheme);
2372   for (size_t i = 0; i < extra_parts_.size(); ++i) {
2373     extra_parts_[i]->GetAdditionalAllowedSchemesForFileSystem(
2374         additional_allowed_schemes);
2375   }
2376 }
2377
2378 void ChromeContentBrowserClient::GetURLRequestAutoMountHandlers(
2379     std::vector<storage::URLRequestAutoMountHandler>* handlers) {
2380   for (size_t i = 0; i < extra_parts_.size(); ++i)
2381     extra_parts_[i]->GetURLRequestAutoMountHandlers(handlers);
2382 }
2383
2384 void ChromeContentBrowserClient::GetAdditionalFileSystemBackends(
2385     content::BrowserContext* browser_context,
2386     const base::FilePath& storage_partition_path,
2387     ScopedVector<storage::FileSystemBackend>* additional_backends) {
2388 #if defined(OS_CHROMEOS)
2389   storage::ExternalMountPoints* external_mount_points =
2390       content::BrowserContext::GetMountPoints(browser_context);
2391   DCHECK(external_mount_points);
2392   chromeos::FileSystemBackend* backend = new chromeos::FileSystemBackend(
2393       new drive::FileSystemBackendDelegate,
2394       new chromeos::file_system_provider::BackendDelegate,
2395       new chromeos::MTPFileSystemBackendDelegate(storage_partition_path),
2396       browser_context->GetSpecialStoragePolicy(),
2397       external_mount_points,
2398       storage::ExternalMountPoints::GetSystemInstance());
2399   backend->AddSystemMountPoints();
2400   DCHECK(backend->CanHandleType(storage::kFileSystemTypeExternal));
2401   additional_backends->push_back(backend);
2402 #endif
2403
2404   for (size_t i = 0; i < extra_parts_.size(); ++i) {
2405     extra_parts_[i]->GetAdditionalFileSystemBackends(
2406         browser_context, storage_partition_path, additional_backends);
2407   }
2408 }
2409
2410 #if defined(OS_POSIX) && !defined(OS_MACOSX)
2411 void ChromeContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
2412     const CommandLine& command_line,
2413     int child_process_id,
2414     FileDescriptorInfo* mappings) {
2415 #if defined(OS_ANDROID)
2416   base::FilePath data_path;
2417   PathService::Get(ui::DIR_RESOURCE_PAKS_ANDROID, &data_path);
2418   DCHECK(!data_path.empty());
2419
2420   int flags = base::File::FLAG_OPEN | base::File::FLAG_READ;
2421   base::FilePath chrome_resources_pak =
2422       data_path.AppendASCII("chrome_100_percent.pak");
2423   base::File file(chrome_resources_pak, flags);
2424   DCHECK(file.IsValid());
2425   mappings->Transfer(kAndroidChrome100PercentPakDescriptor,
2426                      base::ScopedFD(file.TakePlatformFile()));
2427
2428   const std::string locale = GetApplicationLocale();
2429   base::FilePath locale_pak = ResourceBundle::GetSharedInstance().
2430       GetLocaleFilePath(locale, false);
2431   file.Initialize(locale_pak, flags);
2432   DCHECK(file.IsValid());
2433   mappings->Transfer(kAndroidLocalePakDescriptor,
2434                      base::ScopedFD(file.TakePlatformFile()));
2435
2436   base::FilePath resources_pack_path;
2437   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
2438   file.Initialize(resources_pack_path, flags);
2439   DCHECK(file.IsValid());
2440   mappings->Transfer(kAndroidUIResourcesPakDescriptor,
2441                      base::ScopedFD(file.TakePlatformFile()));
2442
2443   if (breakpad::IsCrashReporterEnabled()) {
2444     file = breakpad::CrashDumpManager::GetInstance()->CreateMinidumpFile(
2445                child_process_id);
2446     if (file.IsValid()) {
2447       mappings->Transfer(kAndroidMinidumpDescriptor,
2448                          base::ScopedFD(file.TakePlatformFile()));
2449     } else {
2450       LOG(ERROR) << "Failed to create file for minidump, crash reporting will "
2451                  "be disabled for this process.";
2452     }
2453   }
2454
2455   base::FilePath app_data_path;
2456   PathService::Get(base::DIR_ANDROID_APP_DATA, &app_data_path);
2457   DCHECK(!app_data_path.empty());
2458
2459   flags = base::File::FLAG_OPEN | base::File::FLAG_READ;
2460   base::FilePath icudata_path =
2461       app_data_path.AppendASCII("icudtl.dat");
2462   base::File icudata_file(icudata_path, flags);
2463   DCHECK(icudata_file.IsValid());
2464   mappings->Transfer(kAndroidICUDataDescriptor,
2465                      base::ScopedFD(icudata_file.TakePlatformFile()));
2466
2467 #else
2468   int crash_signal_fd = GetCrashSignalFD(command_line);
2469   if (crash_signal_fd >= 0) {
2470     mappings->Share(kCrashDumpSignal, crash_signal_fd);
2471   }
2472 #endif  // defined(OS_ANDROID)
2473 }
2474 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
2475
2476 #if defined(OS_WIN)
2477 const wchar_t* ChromeContentBrowserClient::GetResourceDllName() {
2478   return chrome::kBrowserResourcesDll;
2479 }
2480
2481 void ChromeContentBrowserClient::PreSpawnRenderer(
2482     sandbox::TargetPolicy* policy,
2483     bool* success) {
2484   // This code is duplicated in nacl_exe_win_64.cc.
2485   // Allow the server side of a pipe restricted to the "chrome.nacl."
2486   // namespace so that it cannot impersonate other system or other chrome
2487   // service pipes.
2488   sandbox::ResultCode result = policy->AddRule(
2489       sandbox::TargetPolicy::SUBSYS_NAMED_PIPES,
2490       sandbox::TargetPolicy::NAMEDPIPES_ALLOW_ANY,
2491       L"\\\\.\\pipe\\chrome.nacl.*");
2492   if (result != sandbox::SBOX_ALL_OK) {
2493     *success = false;
2494     return;
2495   }
2496
2497   // Renderers need to send named pipe handles and shared memory
2498   // segment handles to NaCl loader processes.
2499   result = policy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
2500                            sandbox::TargetPolicy::HANDLES_DUP_ANY,
2501                            L"File");
2502   if (result != sandbox::SBOX_ALL_OK) {
2503     *success = false;
2504     return;
2505   }
2506 }
2507 #endif
2508
2509 bool ChromeContentBrowserClient::CheckMediaAccessPermission(
2510     content::BrowserContext* browser_context,
2511     const GURL& security_origin,
2512     content::MediaStreamType type) {
2513   return MediaCaptureDevicesDispatcher::GetInstance()
2514       ->CheckMediaAccessPermission(
2515           browser_context, security_origin, type);
2516 }
2517
2518 content::DevToolsManagerDelegate*
2519 ChromeContentBrowserClient::GetDevToolsManagerDelegate() {
2520 #if defined(OS_ANDROID)
2521   return new DevToolsManagerDelegateAndroid();
2522 #else
2523   return new ChromeDevToolsManagerDelegate();
2524 #endif
2525 }
2526
2527 bool ChromeContentBrowserClient::IsPluginAllowedToCallRequestOSFileHandle(
2528     content::BrowserContext* browser_context,
2529     const GURL& url) {
2530 #if defined(ENABLE_EXTENSIONS)
2531   Profile* profile = Profile::FromBrowserContext(browser_context);
2532   const extensions::ExtensionSet* extension_set = NULL;
2533   if (profile) {
2534     const ExtensionService* ext_service =
2535         extensions::ExtensionSystem::Get(profile)->extension_service();
2536     if (ext_service) {
2537       extension_set = ext_service->extensions();
2538     }
2539   }
2540   return IsExtensionOrSharedModuleWhitelisted(url, extension_set,
2541                                               allowed_file_handle_origins_) ||
2542          IsHostAllowedByCommandLine(url, extension_set,
2543                                     switches::kAllowNaClFileHandleAPI);
2544 #else
2545   return false;
2546 #endif
2547 }
2548
2549 bool ChromeContentBrowserClient::IsPluginAllowedToUseDevChannelAPIs(
2550     content::BrowserContext* browser_context,
2551     const GURL& url) {
2552 #if defined(ENABLE_EXTENSIONS)
2553   // Allow access for tests.
2554   if (CommandLine::ForCurrentProcess()->HasSwitch(
2555           switches::kEnablePepperTesting)) {
2556     return true;
2557   }
2558
2559   Profile* profile = Profile::FromBrowserContext(browser_context);
2560   const extensions::ExtensionSet* extension_set = NULL;
2561   if (profile) {
2562     const ExtensionService* ext_service =
2563         extensions::ExtensionSystem::Get(profile)->extension_service();
2564     if (ext_service) {
2565       extension_set = ext_service->extensions();
2566     }
2567   }
2568
2569   // Allow access for whitelisted applications.
2570   if (IsExtensionOrSharedModuleWhitelisted(url,
2571                                            extension_set,
2572                                            allowed_dev_channel_origins_)) {
2573       return true;
2574   }
2575
2576   chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
2577   // Allow dev channel APIs to be used on "Canary", "Dev", and "Unknown"
2578   // releases of Chrome. Permitting "Unknown" allows these APIs to be used on
2579   // Chromium builds as well.
2580   return channel <= chrome::VersionInfo::CHANNEL_DEV;
2581 #else
2582   return false;
2583 #endif
2584 }
2585
2586 net::CookieStore*
2587 ChromeContentBrowserClient::OverrideCookieStoreForRenderProcess(
2588     int render_process_id) {
2589   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
2590   if (!prerender_tracker_)
2591     return NULL;
2592   return prerender_tracker_->GetPrerenderCookieStoreForRenderProcess(
2593                                  render_process_id).get();
2594 }
2595
2596 #if defined(ENABLE_WEBRTC)
2597 void ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch(
2598     CommandLine* to_command_line,
2599     const CommandLine& from_command_line,
2600     VersionInfo::Channel channel) {
2601 #if defined(OS_ANDROID)
2602   const VersionInfo::Channel kMaxDisableEncryptionChannel =
2603       VersionInfo::CHANNEL_BETA;
2604 #else
2605   const VersionInfo::Channel kMaxDisableEncryptionChannel =
2606       VersionInfo::CHANNEL_DEV;
2607 #endif
2608   if (channel <= kMaxDisableEncryptionChannel) {
2609     static const char* const kWebRtcDevSwitchNames[] = {
2610       switches::kDisableWebRtcEncryption,
2611     };
2612     to_command_line->CopySwitchesFrom(from_command_line,
2613                                       kWebRtcDevSwitchNames,
2614                                       arraysize(kWebRtcDevSwitchNames));
2615   }
2616 }
2617 #endif  // defined(ENABLE_WEBRTC)
2618
2619 }  // namespace chrome