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/bind_helpers.h"
  13 #include "base/command_line.h"
  14 #include "base/files/scoped_file.h"
  15 #include "base/i18n/icu_util.h"
  16 #include "base/lazy_instance.h"
  17 #include "base/path_service.h"
  18 #include "base/prefs/pref_service.h"
  19 #include "base/prefs/scoped_user_pref_update.h"
  20 #include "base/strings/string_number_conversions.h"
  21 #include "base/strings/utf_string_conversions.h"
  22 #include "base/threading/sequenced_worker_pool.h"
  23 #include "chrome/browser/browser_about_handler.h"
  24 #include "chrome/browser/browser_process.h"
  25 #include "chrome/browser/browser_shutdown.h"
  26 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  27 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  28 #include "chrome/browser/character_encoding.h"
  29 #include "chrome/browser/chrome_content_browser_client_parts.h"
  30 #include "chrome/browser/chrome_net_benchmarking_message_filter.h"
  31 #include "chrome/browser/chrome_quota_permission_context.h"
  32 #include "chrome/browser/content_settings/cookie_settings.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/media/media_capture_devices_dispatcher.h"
  39 #include "chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h"
  40 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  41 #include "chrome/browser/net/chrome_net_log.h"
  42 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
  43 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings_factory.h"
  44 #include "chrome/browser/notifications/platform_notification_service_impl.h"
  45 #include "chrome/browser/platform_util.h"
  46 #include "chrome/browser/prerender/prerender_final_status.h"
  47 #include "chrome/browser/prerender/prerender_manager.h"
  48 #include "chrome/browser/prerender/prerender_manager_factory.h"
  49 #include "chrome/browser/prerender/prerender_message_filter.h"
  50 #include "chrome/browser/printing/printing_message_filter.h"
  51 #include "chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.h"
  52 #include "chrome/browser/profiles/profile.h"
  53 #include "chrome/browser/profiles/profile_io_data.h"
  54 #include "chrome/browser/renderer_host/chrome_render_message_filter.h"
  55 #include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
  56 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
  57 #include "chrome/browser/safe_browsing/ui_manager.h"
  58 #include "chrome/browser/search/instant_service.h"
  59 #include "chrome/browser/search/instant_service_factory.h"
  60 #include "chrome/browser/search/search.h"
  61 #include "chrome/browser/search_engines/search_provider_install_state_message_filter.h"
  62 #include "chrome/browser/speech/chrome_speech_recognition_manager_delegate.h"
  63 #include "chrome/browser/speech/tts_controller.h"
  64 #include "chrome/browser/speech/tts_message_filter.h"
  65 #include "chrome/browser/ssl/ssl_add_certificate.h"
  66 #include "chrome/browser/ssl/ssl_blocking_page.h"
  67 #include "chrome/browser/ssl/ssl_cert_reporter.h"
  68 #include "chrome/browser/ssl/ssl_client_certificate_selector.h"
  69 #include "chrome/browser/ssl/ssl_error_handler.h"
  70 #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h"
  71 #include "chrome/browser/tab_contents/tab_util.h"
  72 #include "chrome/browser/tracing/chrome_tracing_delegate.h"
  73 #include "chrome/browser/ui/blocked_content/blocked_window_params.h"
  74 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
  75 #include "chrome/browser/ui/chrome_select_file_policy.h"
  76 #include "chrome/browser/ui/sync/sync_promo_ui.h"
  77 #include "chrome/browser/ui/tab_contents/chrome_web_contents_view_delegate.h"
  78 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  79 #include "chrome/common/chrome_constants.h"
  80 #include "chrome/common/chrome_paths.h"
  81 #include "chrome/common/chrome_switches.h"
  82 #include "chrome/common/env_vars.h"
  83 #include "chrome/common/logging_chrome.h"
  84 #include "chrome/common/pepper_permission_util.h"
  85 #include "chrome/common/pref_names.h"
  86 #include "chrome/common/render_messages.h"
  87 #include "chrome/common/url_constants.h"
  88 #include "chrome/grit/generated_resources.h"
  89 #include "chrome/installer/util/google_update_settings.h"
  90 #include "chromeos/chromeos_constants.h"
  91 #include "components/cdm/browser/cdm_message_filter_android.h"
  92 #include "components/cloud_devices/common/cloud_devices_switches.h"
  93 #include "components/content_settings/core/browser/content_settings_utils.h"
  94 #include "components/content_settings/core/browser/host_content_settings_map.h"
  95 #include "components/content_settings/core/common/content_settings.h"
  96 #include "components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.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/rappor/rappor_utils.h"
 102 #include "components/signin/core/common/profile_management_switches.h"
 103 #include "components/translate/core/common/translate_switches.h"
 104 #include "components/url_fixer/url_fixer.h"
 105 #include "content/public/browser/browser_child_process_host.h"
 106 #include "content/public/browser/browser_main_parts.h"
 107 #include "content/public/browser/browser_ppapi_host.h"
 108 #include "content/public/browser/browser_thread.h"
 109 #include "content/public/browser/browser_url_handler.h"
 110 #include "content/public/browser/child_process_data.h"
 111 #include "content/public/browser/child_process_security_policy.h"
 112 #include "content/public/browser/client_certificate_delegate.h"
 113 #include "content/public/browser/render_frame_host.h"
 114 #include "content/public/browser/render_process_host.h"
 115 #include "content/public/browser/render_view_host.h"
 116 #include "content/public/browser/resource_context.h"
 117 #include "content/public/browser/site_instance.h"
 118 #include "content/public/browser/web_contents.h"
 119 #include "content/public/common/child_process_host.h"
 120 #include "content/public/common/content_descriptors.h"
 121 #include "content/public/common/url_utils.h"
 122 #include "content/public/common/web_preferences.h"
 123 #include "gin/v8_initializer.h"
 124 #include "net/base/mime_util.h"
 125 #include "net/cookies/canonical_cookie.h"
 126 #include "net/cookies/cookie_options.h"
 127 #include "net/ssl/ssl_cert_request_info.h"
 128 #include "ppapi/host/ppapi_host.h"
 129 #include "storage/browser/fileapi/external_mount_points.h"
 130 #include "ui/base/l10n/l10n_util.h"
 131 #include "ui/base/resource/resource_bundle.h"
 132 #include "ui/resources/grit/ui_resources.h"
 133
 134 #if defined(OS_WIN)
 135 #include "base/win/windows_version.h"
 136 #include "chrome/browser/chrome_browser_main_win.h"
 137 #include "sandbox/win/src/sandbox_policy.h"
 138 #elif defined(OS_MACOSX)
 139 #include "chrome/browser/chrome_browser_main_mac.h"
 140 #include "chrome/browser/spellchecker/spellcheck_message_filter_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/policy/browser_policy_connector_chromeos.h"
 150 #include "chrome/browser/chromeos/system/input_device_settings.h"
 151 #include "chromeos/chromeos_switches.h"
 152 #include "components/user_manager/user_manager.h"
 153 #elif defined(OS_LINUX)
 154 #include "chrome/browser/chrome_browser_main_linux.h"
 155 #elif defined(OS_ANDROID)
 156 #include "chrome/browser/android/new_tab_page_url_handler.h"
 157 #include "chrome/browser/android/service_tab_launcher.h"
 158 #include "chrome/browser/android/webapps/single_tab_mode_tab_helper.h"
 159 #include "chrome/browser/chrome_browser_main_android.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(TOOLKIT_VIEWS)
 184 #include "chrome/browser/ui/views/chrome_browser_main_extra_parts_views.h"
 185 #endif
 186
 187 #if defined(USE_ASH)
 188 #include "chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h"
 189 #endif
 190
 191 #if defined(USE_AURA)
 192 #include "chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.h"
 193 #endif
 194
 195 #if defined(USE_X11)
 196 #include "chrome/browser/chrome_browser_main_extra_parts_x11.h"
 197 #endif
 198
 199 #if defined(ENABLE_CAPTIVE_PORTAL_DETECTION)
 200 #include "chrome/browser/captive_portal/captive_portal_tab_helper.h"
 201 #endif
 202
 203 #if !defined(DISABLE_NACL)
 204 #include "components/nacl/browser/nacl_browser.h"
 205 #include "components/nacl/browser/nacl_host_message_filter.h"
 206 #include "components/nacl/browser/nacl_process_host.h"
 207 #include "components/nacl/common/nacl_process_type.h"
 208 #include "components/nacl/common/nacl_switches.h"
 209 #endif
 210
 211 #if defined(ENABLE_EXTENSIONS)
 212 #include "chrome/browser/accessibility/animation_policy_prefs.h"
 213 #include "chrome/browser/extensions/chrome_content_browser_client_extensions_part.h"
 214 #include "chrome/browser/extensions/extension_util.h"
 215 #include "chrome/browser/media/cast_transport_host_filter.h"
 216 #include "chrome/browser/speech/extension_api/tts_engine_extension_api.h"
 217 #include "extensions/browser/extension_registry.h"
 218 #include "extensions/browser/guest_view/guest_view_base.h"
 219 #include "extensions/browser/guest_view/guest_view_manager.h"
 220 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 221 #include "extensions/browser/guest_view/web_view/web_view_permission_helper.h"
 222 #include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
 223 #include "extensions/common/constants.h"
 224 #include "extensions/common/extension.h"
 225 #include "extensions/common/extension_set.h"
 226 #include "extensions/common/manifest_handlers/background_info.h"
 227 #include "extensions/common/manifest_handlers/shared_module_info.h"
 228 #include "extensions/common/permissions/permissions_data.h"
 229 #include "extensions/common/permissions/socket_permission.h"
 230 #include "extensions/common/switches.h"
 231 #endif
 232
 233 #if defined(ENABLE_PLUGINS)
 234 #include "chrome/browser/plugins/chrome_content_browser_client_plugins_part.h"
 235 #endif
 236
 237 #if defined(ENABLE_SPELLCHECK)
 238 #include "chrome/browser/spellchecker/spellcheck_message_filter.h"
 239 #endif
 240
 241 #if defined(ENABLE_WEBRTC)
 242 #include "chrome/browser/media/webrtc_logging_handler_host.h"
 243 #endif
 244
 245 using base::FileDescriptor;
 246 using blink::WebWindowFeatures;
 247 using content::AccessTokenStore;
 248 using content::BrowserThread;
 249 using content::BrowserURLHandler;
 250 using content::ChildProcessSecurityPolicy;
 251 using content::QuotaPermissionContext;
 252 using content::RenderFrameHost;
 253 using content::RenderViewHost;
 254 using content::ResourceType;
 255 using content::SiteInstance;
 256 using content::WebContents;
 257 using content::WebPreferences;
 258 using message_center::NotifierId;
 259
 260 #if defined(OS_POSIX)
 261 using content::FileDescriptorInfo;
 262 #endif
 263
 264 #if defined(ENABLE_EXTENSIONS)
 265 using extensions::APIPermission;
 266 using extensions::ChromeContentBrowserClientExtensionsPart;
 267 using extensions::Extension;
 268 using extensions::InfoMap;
 269 using extensions::Manifest;
 270 #endif
 271
 272 #if defined(ENABLE_PLUGINS)
 273 using plugins::ChromeContentBrowserClientPluginsPart;
 274 #endif
 275
 276 namespace {
 277
 278 // Cached version of the locale so we can return the locale on the I/O
 279 // thread.
 280 base::LazyInstance<std::string> g_io_thread_application_locale;
 281
 282 #if defined(ENABLE_PLUGINS)
 283 // TODO(teravest): Add renderer-side API-specific checking for these APIs so
 284 // that blanket permission isn't granted to all dev channel APIs for these.
 285 // http://crbug.com/386743
 286 const char* const kPredefinedAllowedDevChannelOrigins[] = {
 287   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",  // see crbug.com/383937
 288   "4EB74897CB187C7633357C2FE832E0AD6A44883A"   // see crbug.com/383937
 289 };
 290
 291 const char* const kPredefinedAllowedFileHandleOrigins[] = {
 292   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",  // see crbug.com/234789
 293   "4EB74897CB187C7633357C2FE832E0AD6A44883A"   // see crbug.com/234789
 294 };
 295
 296 const char* const kPredefinedAllowedSocketOrigins[] = {
 297   "okddffdblfhhnmhodogpojmfkjmhinfp",  // Test SSH Client
 298   "pnhechapfaindjhompbnflcldabbghjo",  // HTerm App (SSH Client)
 299   "bglhmjfplikpjnfoegeomebmfnkjomhe",  // see crbug.com/122126
 300   "gbchcmhmhahfdphkhkmpfmihenigjmpp",  // Chrome Remote Desktop
 301   "kgngmbheleoaphbjbaiobfdepmghbfah",  // Pre-release Chrome Remote Desktop
 302   "odkaodonbgfohohmklejpjiejmcipmib",  // Dogfood Chrome Remote Desktop
 303   "ojoimpklfciegopdfgeenehpalipignm",  // Chromoting canary
 304   "cbkkbcmdlboombapidmoeolnmdacpkch",  // see crbug.com/129089
 305   "hhnbmknkdabfoieppbbljkhkfjcmcbjh",  // see crbug.com/134099
 306   "mablfbjkhmhkmefkjjacnbaikjkipphg",  // see crbug.com/134099
 307   "pdeelgamlgannhelgoegilelnnojegoh",  // see crbug.com/134099
 308   "cabapfdbkniadpollkckdnedaanlciaj",  // see crbug.com/134099
 309   "mapljbgnjledlpdmlchihnmeclmefbba",  // see crbug.com/134099
 310   "ghbfeebgmiidnnmeobbbaiamklmpbpii",  // see crbug.com/134099
 311   "jdfhpkjeckflbbleddjlpimecpbjdeep",  // see crbug.com/142514
 312   "iabmpiboiopbgfabjmgeedhcmjenhbla",  // see crbug.com/165080
 313   "B7CF8A292249681AF81771650BA4CEEAF19A4560",  // see crbug.com/165080
 314   "7525AF4F66763A70A883C4700529F647B470E4D2",  // see crbug.com/238084
 315   "0B549507088E1564D672F7942EB87CA4DAD73972",  // see crbug.com/238084
 316   "864288364E239573E777D3E0E36864E590E95C74"   // see crbug.com/238084
 317 };
 318 #endif
 319
 320 // Returns a copy of the given url with its host set to given host and path set
 321 // to given path. Other parts of the url will be the same.
 322 GURL ReplaceURLHostAndPath(const GURL& url,
 323                            const std::string& host,
 324                            const std::string& path) {
 325   url::Replacements<char> replacements;
 326   replacements.SetHost(host.c_str(), url::Component(0, host.length()));
 327   replacements.SetPath(path.c_str(), url::Component(0, path.length()));
 328   return url.ReplaceComponents(replacements);
 329 }
 330
 331 // Maps "foo://bar/baz/" to "foo://chrome/bar/baz/".
 332 GURL AddUberHost(const GURL& url) {
 333   const std::string uber_host = chrome::kChromeUIUberHost;
 334   const std::string new_path = url.host() + url.path();
 335
 336   return ReplaceURLHostAndPath(url, uber_host, new_path);
 337 }
 338
 339 // If url->host() is "chrome" and url->path() has characters other than the
 340 // first slash, changes the url from "foo://chrome/bar/" to "foo://bar/" and
 341 // returns true. Otherwise returns false.
 342 bool RemoveUberHost(GURL* url) {
 343   if (url->host() != chrome::kChromeUIUberHost)
 344     return false;
 345
 346   if (url->path().empty() || url->path() == "/")
 347     return false;
 348
 349   const std::string old_path = url->path();
 350
 351   const std::string::size_type separator = old_path.find('/', 1);
 352   std::string new_host;
 353   std::string new_path;
 354   if (separator == std::string::npos) {
 355     new_host = old_path.substr(1);
 356   } else {
 357     new_host = old_path.substr(1, separator - 1);
 358     new_path = old_path.substr(separator);
 359   }
 360
 361   // Do not allow URLs with paths empty before the first slash since we can't
 362   // have an empty host. (e.g "foo://chrome//")
 363   if (new_host.empty())
 364     return false;
 365
 366   *url = ReplaceURLHostAndPath(*url, new_host, new_path);
 367
 368   DCHECK(url->is_valid());
 369
 370   return true;
 371 }
 372
 373 // Handles rewriting Web UI URLs.
 374 bool HandleWebUI(GURL* url, content::BrowserContext* browser_context) {
 375   // Do not handle special URLs such as "about:foo"
 376   if (!url->host().empty()) {
 377     const GURL chrome_url = AddUberHost(*url);
 378
 379     // Handle valid "chrome://chrome/foo" URLs so the reverse handler will
 380     // be called.
 381     if (ChromeWebUIControllerFactory::GetInstance()->UseWebUIForURL(
 382             browser_context, chrome_url))
 383       return true;
 384   }
 385
 386   if (!ChromeWebUIControllerFactory::GetInstance()->UseWebUIForURL(
 387           browser_context, *url))
 388     return false;
 389
 390 #if defined(OS_CHROMEOS)
 391   // Special case : in ChromeOS in Guest mode bookmarks and history are
 392   // disabled for security reasons. New tab page explains the reasons, so
 393   // we redirect user to new tab page.
 394   if (user_manager::UserManager::Get()->IsLoggedInAsGuest()) {
 395     if (url->SchemeIs(content::kChromeUIScheme) &&
 396         (url->DomainIs(chrome::kChromeUIBookmarksHost) ||
 397          url->DomainIs(chrome::kChromeUIHistoryHost))) {
 398       // Rewrite with new tab URL
 399       *url = GURL(chrome::kChromeUINewTabURL);
 400     }
 401   }
 402 #endif
 403
 404   return true;
 405 }
 406
 407 // Reverse URL handler for Web UI. Maps "chrome://chrome/foo/" to
 408 // "chrome://foo/".
 409 bool HandleWebUIReverse(GURL* url, content::BrowserContext* browser_context) {
 410   if (!url->is_valid() || !url->SchemeIs(content::kChromeUIScheme))
 411     return false;
 412
 413   return RemoveUberHost(url);
 414 }
 415
 416 bool CertMatchesFilter(const net::X509Certificate& cert,
 417                        const base::DictionaryValue& filter) {
 418   // TODO(markusheintz): This is the minimal required filter implementation.
 419   // Implement a better matcher.
 420
 421   // An empty filter matches any client certificate since no requirements are
 422   // specified at all.
 423   if (filter.empty())
 424     return true;
 425
 426   std::string common_name;
 427   if (filter.GetString("ISSUER.CN", &common_name) &&
 428       (cert.issuer().common_name == common_name)) {
 429     return true;
 430   }
 431   return false;
 432 }
 433
 434 #if defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
 435 breakpad::CrashHandlerHostLinux* CreateCrashHandlerHost(
 436     const std::string& process_type) {
 437   base::FilePath dumps_path;
 438   PathService::Get(chrome::DIR_CRASH_DUMPS, &dumps_path);
 439   {
 440     ANNOTATE_SCOPED_MEMORY_LEAK;
 441     bool upload = (getenv(env_vars::kHeadless) == NULL);
 442     breakpad::CrashHandlerHostLinux* crash_handler =
 443         new breakpad::CrashHandlerHostLinux(process_type, dumps_path, upload);
 444     crash_handler->StartUploaderThread();
 445     return crash_handler;
 446   }
 447 }
 448
 449 int GetCrashSignalFD(const base::CommandLine& command_line) {
 450   // Extensions have the same process type as renderers.
 451   if (command_line.HasSwitch(extensions::switches::kExtensionProcess)) {
 452     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 453     if (!crash_handler)
 454       crash_handler = CreateCrashHandlerHost("extension");
 455     return crash_handler->GetDeathSignalSocket();
 456   }
 457
 458   std::string process_type =
 459       command_line.GetSwitchValueASCII(switches::kProcessType);
 460
 461   if (process_type == switches::kRendererProcess) {
 462     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 463     if (!crash_handler)
 464       crash_handler = CreateCrashHandlerHost(process_type);
 465     return crash_handler->GetDeathSignalSocket();
 466   }
 467
 468   if (process_type == switches::kPluginProcess) {
 469     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 470     if (!crash_handler)
 471       crash_handler = CreateCrashHandlerHost(process_type);
 472     return crash_handler->GetDeathSignalSocket();
 473   }
 474
 475   if (process_type == switches::kPpapiPluginProcess) {
 476     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 477     if (!crash_handler)
 478       crash_handler = CreateCrashHandlerHost(process_type);
 479     return crash_handler->GetDeathSignalSocket();
 480   }
 481
 482   if (process_type == switches::kGpuProcess) {
 483     static breakpad::CrashHandlerHostLinux* crash_handler = NULL;
 484     if (!crash_handler)
 485       crash_handler = CreateCrashHandlerHost(process_type);
 486     return crash_handler->GetDeathSignalSocket();
 487   }
 488
 489   return -1;
 490 }
 491 #endif  // defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
 492
 493 void SetApplicationLocaleOnIOThread(const std::string& locale) {
 494   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 495   g_io_thread_application_locale.Get() = locale;
 496 }
 497
 498 void HandleBlockedPopupOnUIThread(const BlockedWindowParams& params) {
 499   // TODO(jochen): This code path should use RenderFrameHosts. See
 500   // http://crbug.com/431769 for details.
 501   RenderViewHost* render_view_host =
 502       RenderViewHost::FromID(params.render_process_id(), params.opener_id());
 503   if (!render_view_host)
 504     return;
 505   WebContents* tab = WebContents::FromRenderViewHost(render_view_host);
 506   // The tab might already have navigated away.
 507   if (!tab || tab->GetRenderViewHost() != render_view_host)
 508     return;
 509
 510   prerender::PrerenderContents* prerender_contents =
 511       prerender::PrerenderContents::FromWebContents(tab);
 512   if (prerender_contents) {
 513     prerender_contents->Destroy(prerender::FINAL_STATUS_CREATE_NEW_WINDOW);
 514     return;
 515   }
 516
 517   PopupBlockerTabHelper* popup_helper =
 518       PopupBlockerTabHelper::FromWebContents(tab);
 519   if (!popup_helper)
 520     return;
 521   popup_helper->AddBlockedPopup(params);
 522 }
 523
 524 // An implementation of the SSLCertReporter interface used by
 525 // SSLErrorHandler. Uses the SafeBrowsing UI manager to send invalid
 526 // certificate reports.
 527 class SafeBrowsingSSLCertReporter : public SSLCertReporter {
 528  public:
 529   explicit SafeBrowsingSSLCertReporter(
 530       const scoped_refptr<SafeBrowsingUIManager>& safe_browsing_ui_manager)
 531       : safe_browsing_ui_manager_(safe_browsing_ui_manager) {}
 532   ~SafeBrowsingSSLCertReporter() override {}
 533
 534   // SSLCertReporter implementation
 535   void ReportInvalidCertificateChain(const std::string& hostname,
 536                                      const net::SSLInfo& ssl_info) override {
 537     if (safe_browsing_ui_manager_) {
 538       safe_browsing_ui_manager_->ReportInvalidCertificateChain(
 539           hostname, ssl_info, base::Bind(&base::DoNothing));
 540     }
 541   }
 542
 543  private:
 544   const scoped_refptr<SafeBrowsingUIManager> safe_browsing_ui_manager_;
 545 };
 546
 547 #if defined(OS_ANDROID)
 548
 549 void HandleSingleTabModeBlockOnUIThread(const BlockedWindowParams& params) {
 550   WebContents* web_contents =
 551       tab_util::GetWebContentsByID(params.render_process_id(),
 552                                    params.opener_id());
 553   if (!web_contents)
 554     return;
 555
 556   SingleTabModeTabHelper::FromWebContents(web_contents)->HandleOpenUrl(params);
 557 }
 558
 559 float GetDeviceScaleAdjustment() {
 560   static const float kMinFSM = 1.05f;
 561   static const int kWidthForMinFSM = 320;
 562   static const float kMaxFSM = 1.3f;
 563   static const int kWidthForMaxFSM = 800;
 564
 565   gfx::DeviceDisplayInfo info;
 566   int minWidth = info.GetSmallestDIPWidth();
 567
 568   if (minWidth <= kWidthForMinFSM)
 569     return kMinFSM;
 570   if (minWidth >= kWidthForMaxFSM)
 571     return kMaxFSM;
 572
 573   // The font scale multiplier varies linearly between kMinFSM and kMaxFSM.
 574   float ratio = static_cast<float>(minWidth - kWidthForMinFSM) /
 575       (kWidthForMaxFSM - kWidthForMinFSM);
 576   return ratio * (kMaxFSM - kMinFSM) + kMinFSM;
 577 }
 578
 579 #endif  // defined(OS_ANDROID)
 580
 581 #if defined(ENABLE_EXTENSIONS)
 582 // By default, JavaScript and images are enabled in guest content.
 583 void GetGuestViewDefaultContentSettingRules(
 584     bool incognito,
 585     RendererContentSettingRules* rules) {
 586   rules->image_rules.push_back(
 587       ContentSettingPatternSource(ContentSettingsPattern::Wildcard(),
 588                                   ContentSettingsPattern::Wildcard(),
 589                                   CONTENT_SETTING_ALLOW,
 590                                   std::string(),
 591                                   incognito));
 592
 593   rules->script_rules.push_back(
 594       ContentSettingPatternSource(ContentSettingsPattern::Wildcard(),
 595                                   ContentSettingsPattern::Wildcard(),
 596                                   CONTENT_SETTING_ALLOW,
 597                                   std::string(),
 598                                   incognito));
 599 }
 600 #endif  // defined(ENABLE_EXTENSIONS)
 601
 602 }  // namespace
 603
 604 namespace chrome {
 605
 606 ChromeContentBrowserClient::ChromeContentBrowserClient()
 607     :
 608 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 609       v8_natives_fd_(-1),
 610       v8_snapshot_fd_(-1),
 611 #endif  // OS_POSIX && !OS_MACOSX
 612       weak_factory_(this) {
 613 #if defined(ENABLE_PLUGINS)
 614   for (size_t i = 0; i < arraysize(kPredefinedAllowedDevChannelOrigins); ++i)
 615     allowed_dev_channel_origins_.insert(kPredefinedAllowedDevChannelOrigins[i]);
 616   for (size_t i = 0; i < arraysize(kPredefinedAllowedFileHandleOrigins); ++i)
 617     allowed_file_handle_origins_.insert(kPredefinedAllowedFileHandleOrigins[i]);
 618   for (size_t i = 0; i < arraysize(kPredefinedAllowedSocketOrigins); ++i)
 619     allowed_socket_origins_.insert(kPredefinedAllowedSocketOrigins[i]);
 620
 621   extra_parts_.push_back(new ChromeContentBrowserClientPluginsPart);
 622 #endif
 623
 624 #if !defined(OS_ANDROID)
 625   TtsExtensionEngine* tts_extension_engine = TtsExtensionEngine::GetInstance();
 626   TtsController::GetInstance()->SetTtsEngineDelegate(tts_extension_engine);
 627 #endif
 628
 629 #if defined(ENABLE_EXTENSIONS)
 630   extra_parts_.push_back(new ChromeContentBrowserClientExtensionsPart);
 631 #endif
 632 }
 633
 634 ChromeContentBrowserClient::~ChromeContentBrowserClient() {
 635   for (int i = static_cast<int>(extra_parts_.size()) - 1; i >= 0; --i)
 636     delete extra_parts_[i];
 637   extra_parts_.clear();
 638 }
 639
 640 // static
 641 void ChromeContentBrowserClient::RegisterProfilePrefs(
 642     user_prefs::PrefRegistrySyncable* registry) {
 643   registry->RegisterBooleanPref(
 644       prefs::kDisable3DAPIs,
 645       false,
 646       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 647   registry->RegisterBooleanPref(
 648       prefs::kEnableHyperlinkAuditing,
 649       true,
 650       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 651   registry->RegisterListPref(
 652       prefs::kEnableDeprecatedWebPlatformFeatures,
 653       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 654 }
 655
 656 // static
 657 void ChromeContentBrowserClient::SetApplicationLocale(
 658     const std::string& locale) {
 659   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 660
 661   // This object is guaranteed to outlive all threads so we don't have to
 662   // worry about the lack of refcounting and can just post as Unretained.
 663   //
 664   // The common case is that this function is called early in Chrome startup
 665   // before any threads are created (it will also be called later if the user
 666   // changes the pref). In this case, there will be no threads created and
 667   // posting will fail. When there are no threads, we can just set the string
 668   // without worrying about threadsafety.
 669   if (!BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
 670           base::Bind(&SetApplicationLocaleOnIOThread, locale))) {
 671     g_io_thread_application_locale.Get() = locale;
 672   }
 673 }
 674
 675 content::BrowserMainParts* ChromeContentBrowserClient::CreateBrowserMainParts(
 676     const content::MainFunctionParams& parameters) {
 677   ChromeBrowserMainParts* main_parts;
 678   // Construct the Main browser parts based on the OS type.
 679 #if defined(OS_WIN)
 680   main_parts = new ChromeBrowserMainPartsWin(parameters);
 681 #elif defined(OS_MACOSX)
 682   main_parts = new ChromeBrowserMainPartsMac(parameters);
 683 #elif defined(OS_CHROMEOS)
 684   main_parts = new chromeos::ChromeBrowserMainPartsChromeos(parameters);
 685 #elif defined(OS_LINUX)
 686   main_parts = new ChromeBrowserMainPartsLinux(parameters);
 687 #elif defined(OS_ANDROID)
 688   main_parts = new ChromeBrowserMainPartsAndroid(parameters);
 689 #elif defined(OS_POSIX)
 690   main_parts = new ChromeBrowserMainPartsPosix(parameters);
 691 #else
 692   NOTREACHED();
 693   main_parts = new ChromeBrowserMainParts(parameters);
 694 #endif
 695
 696   chrome::AddProfilesExtraParts(main_parts);
 697
 698   // Construct additional browser parts. Stages are called in the order in
 699   // which they are added.
 700 #if defined(TOOLKIT_VIEWS)
 701   main_parts->AddParts(new ChromeBrowserMainExtraPartsViews());
 702 #endif
 703
 704 // TODO(oshima): Athena on chrome currently requires USE_ASH to build.
 705 // We should reduce the dependency as much as possible.
 706 #if defined(USE_ASH)
 707   main_parts->AddParts(new ChromeBrowserMainExtraPartsAsh());
 708 #endif
 709
 710 #if defined(USE_AURA)
 711   main_parts->AddParts(new ChromeBrowserMainExtraPartsAura());
 712 #endif
 713
 714 #if defined(USE_X11)
 715   main_parts->AddParts(new ChromeBrowserMainExtraPartsX11());
 716 #endif
 717
 718   chrome::AddMetricsExtraParts(main_parts);
 719
 720   return main_parts;
 721 }
 722
 723 std::string ChromeContentBrowserClient::GetStoragePartitionIdForSite(
 724     content::BrowserContext* browser_context,
 725     const GURL& site) {
 726   std::string partition_id;
 727
 728   // The partition ID for webview guest processes is the string value of its
 729   // SiteInstance URL - "chrome-guest://app_id/persist?partition".
 730   if (site.SchemeIs(content::kGuestScheme)) {
 731     partition_id = site.spec();
 732   } else if (!switches::IsEnableWebviewBasedSignin() &&
 733              site.GetOrigin().spec() == kChromeUIChromeSigninURL) {
 734     // The non-webview Chrome signin page has an embedded iframe of extension
 735     // and web content, thus it must be isolated from other webUI pages.
 736     partition_id = site.GetOrigin().spec();
 737   }
 738
 739   DCHECK(IsValidStoragePartitionId(browser_context, partition_id));
 740   return partition_id;
 741 }
 742
 743 bool ChromeContentBrowserClient::IsValidStoragePartitionId(
 744     content::BrowserContext* browser_context,
 745     const std::string& partition_id) {
 746   // The default ID is empty and is always valid.
 747   if (partition_id.empty())
 748     return true;
 749
 750   return GURL(partition_id).is_valid();
 751 }
 752
 753 void ChromeContentBrowserClient::GetStoragePartitionConfigForSite(
 754     content::BrowserContext* browser_context,
 755     const GURL& site,
 756     bool can_be_default,
 757     std::string* partition_domain,
 758     std::string* partition_name,
 759     bool* in_memory) {
 760   // Default to the browser-wide storage partition and override based on |site|
 761   // below.
 762   partition_domain->clear();
 763   partition_name->clear();
 764   *in_memory = false;
 765
 766   bool success = false;
 767 #if defined(ENABLE_EXTENSIONS)
 768   success = extensions::WebViewGuest::GetGuestPartitionConfigForSite(
 769       site, partition_domain, partition_name, in_memory);
 770
 771   if (!success && site.SchemeIs(extensions::kExtensionScheme)) {
 772     // If |can_be_default| is false, the caller is stating that the |site|
 773     // should be parsed as if it had isolated storage. In particular it is
 774     // important to NOT check ExtensionService for the is_storage_isolated()
 775     // attribute because this code path is run during Extension uninstall
 776     // to do cleanup after the Extension has already been unloaded from the
 777     // ExtensionService.
 778     bool is_isolated = !can_be_default;
 779     if (can_be_default) {
 780       if (extensions::util::SiteHasIsolatedStorage(site, browser_context))
 781         is_isolated = true;
 782     }
 783
 784     if (is_isolated) {
 785       CHECK(site.has_host());
 786       // For extensions with isolated storage, the the host of the |site| is
 787       // the |partition_domain|. The |in_memory| and |partition_name| are only
 788       // used in guest schemes so they are cleared here.
 789       *partition_domain = site.host();
 790       *in_memory = false;
 791       partition_name->clear();
 792     }
 793     success = true;
 794   }
 795 #endif
 796
 797   if (!success && (!switches::IsEnableWebviewBasedSignin() &&
 798                    site.GetOrigin().spec() == kChromeUIChromeSigninURL)) {
 799     // The non-webview Chrome signin page has an embedded iframe of extension
 800     // and web content, thus it must be isolated from other webUI pages.
 801     *partition_domain = chrome::kChromeUIChromeSigninHost;
 802   }
 803
 804   // Assert that if |can_be_default| is false, the code above must have found a
 805   // non-default partition.  If this fails, the caller has a serious logic
 806   // error about which StoragePartition they expect to be in and it is not
 807   // safe to continue.
 808   CHECK(can_be_default || !partition_domain->empty());
 809 }
 810
 811 content::WebContentsViewDelegate*
 812     ChromeContentBrowserClient::GetWebContentsViewDelegate(
 813         content::WebContents* web_contents) {
 814   return chrome::CreateWebContentsViewDelegate(web_contents);
 815 }
 816
 817 void ChromeContentBrowserClient::RenderProcessWillLaunch(
 818     content::RenderProcessHost* host) {
 819   int id = host->GetID();
 820   Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext());
 821   net::URLRequestContextGetter* context =
 822       profile->GetRequestContextForRenderProcess(id);
 823
 824   host->AddFilter(new ChromeRenderMessageFilter(id, profile));
 825 #if defined(ENABLE_EXTENSIONS)
 826   host->AddFilter(new cast::CastTransportHostFilter);
 827 #endif
 828 #if defined(ENABLE_PRINTING)
 829   host->AddFilter(new printing::PrintingMessageFilter(id, profile));
 830 #endif
 831   host->AddFilter(new SearchProviderInstallStateMessageFilter(id, profile));
 832 #if defined(ENABLE_SPELLCHECK)
 833   host->AddFilter(new SpellCheckMessageFilter(id));
 834 #endif
 835 #if defined(OS_MACOSX)
 836   host->AddFilter(new SpellCheckMessageFilterMac(id));
 837 #endif
 838   host->AddFilter(new ChromeNetBenchmarkingMessageFilter(profile, context));
 839   host->AddFilter(new prerender::PrerenderMessageFilter(id, profile));
 840   host->AddFilter(new TtsMessageFilter(host->GetBrowserContext()));
 841 #if defined(ENABLE_WEBRTC)
 842   WebRtcLoggingHandlerHost* webrtc_logging_handler_host =
 843       new WebRtcLoggingHandlerHost(profile);
 844   host->SetWebRtcLogMessageCallback(base::Bind(
 845       &WebRtcLoggingHandlerHost::LogMessage, webrtc_logging_handler_host));
 846   host->AddFilter(webrtc_logging_handler_host);
 847   host->SetUserData(host, new base::UserDataAdapter<WebRtcLoggingHandlerHost>(
 848       webrtc_logging_handler_host));
 849 #endif
 850 #if !defined(DISABLE_NACL)
 851   host->AddFilter(new nacl::NaClHostMessageFilter(
 852       id, profile->IsOffTheRecord(),
 853       profile->GetPath(),
 854       context));
 855 #endif
 856 #if defined(OS_ANDROID)
 857   host->AddFilter(new cdm::CdmMessageFilterAndroid());
 858 #endif
 859   DataReductionProxyChromeSettings* data_reduction_proxy_settings =
 860       DataReductionProxyChromeSettingsFactory::GetForBrowserContext(profile);
 861   host->AddFilter(new data_reduction_proxy::DataReductionProxyMessageFilter(
 862       data_reduction_proxy_settings));
 863
 864   host->Send(new ChromeViewMsg_SetIsIncognitoProcess(
 865       profile->IsOffTheRecord()));
 866
 867   for (size_t i = 0; i < extra_parts_.size(); ++i)
 868     extra_parts_[i]->RenderProcessWillLaunch(host);
 869
 870   RendererContentSettingRules rules;
 871   if (host->IsIsolatedGuest()) {
 872 #if defined(ENABLE_EXTENSIONS)
 873     GetGuestViewDefaultContentSettingRules(profile->IsOffTheRecord(), &rules);
 874 #else
 875     NOTREACHED();
 876 #endif
 877   } else {
 878     GetRendererContentSettingRules(
 879         profile->GetHostContentSettingsMap(), &rules);
 880   }
 881   host->Send(new ChromeViewMsg_SetContentSettingRules(rules));
 882 }
 883
 884 GURL ChromeContentBrowserClient::GetEffectiveURL(
 885     content::BrowserContext* browser_context, const GURL& url) {
 886   Profile* profile = Profile::FromBrowserContext(browser_context);
 887   if (!profile)
 888     return url;
 889
 890   // If the input |url| should be assigned to the Instant renderer, make its
 891   // effective URL distinct from other URLs on the search provider's domain.
 892   if (chrome::ShouldAssignURLToInstantRenderer(url, profile))
 893     return chrome::GetEffectiveURLForInstant(url, profile);
 894
 895 #if defined(ENABLE_EXTENSIONS)
 896   return ChromeContentBrowserClientExtensionsPart::GetEffectiveURL(
 897       profile, url);
 898 #else
 899   return url;
 900 #endif
 901 }
 902
 903 bool ChromeContentBrowserClient::ShouldUseProcessPerSite(
 904     content::BrowserContext* browser_context, const GURL& effective_url) {
 905   // Non-extension, non-Instant URLs should generally use
 906   // process-per-site-instance.  Because we expect to use the effective URL,
 907   // URLs for hosted apps (apart from bookmark apps) should have an extension
 908   // scheme by now.
 909
 910   Profile* profile = Profile::FromBrowserContext(browser_context);
 911   if (!profile)
 912     return false;
 913
 914   if (chrome::ShouldUseProcessPerSiteForInstantURL(effective_url, profile))
 915     return true;
 916
 917 #if defined(ENABLE_EXTENSIONS)
 918   return ChromeContentBrowserClientExtensionsPart::ShouldUseProcessPerSite(
 919       profile, effective_url);
 920 #else
 921   return false;
 922 #endif
 923 }
 924
 925 // These are treated as WebUI schemes but do not get WebUI bindings. Also,
 926 // view-source is allowed for these schemes.
 927 void ChromeContentBrowserClient::GetAdditionalWebUISchemes(
 928     std::vector<std::string>* additional_schemes) {
 929   additional_schemes->push_back(chrome::kChromeSearchScheme);
 930   additional_schemes->push_back(dom_distiller::kDomDistillerScheme);
 931 }
 932
 933 void ChromeContentBrowserClient::GetAdditionalWebUIHostsToIgnoreParititionCheck(
 934     std::vector<std::string>* hosts) {
 935   hosts->push_back(chrome::kChromeUIExtensionIconHost);
 936   hosts->push_back(chrome::kChromeUIFaviconHost);
 937   hosts->push_back(chrome::kChromeUIThemeHost);
 938   hosts->push_back(chrome::kChromeUIThumbnailHost);
 939   hosts->push_back(chrome::kChromeUIThumbnailHost2);
 940   hosts->push_back(chrome::kChromeUIThumbnailListHost);
 941 }
 942
 943 net::URLRequestContextGetter*
 944 ChromeContentBrowserClient::CreateRequestContext(
 945     content::BrowserContext* browser_context,
 946     content::ProtocolHandlerMap* protocol_handlers,
 947     content::URLRequestInterceptorScopedVector request_interceptors) {
 948   Profile* profile = Profile::FromBrowserContext(browser_context);
 949   return profile->CreateRequestContext(protocol_handlers,
 950                                        request_interceptors.Pass());
 951 }
 952
 953 net::URLRequestContextGetter*
 954 ChromeContentBrowserClient::CreateRequestContextForStoragePartition(
 955     content::BrowserContext* browser_context,
 956     const base::FilePath& partition_path,
 957     bool in_memory,
 958     content::ProtocolHandlerMap* protocol_handlers,
 959     content::URLRequestInterceptorScopedVector request_interceptors) {
 960   Profile* profile = Profile::FromBrowserContext(browser_context);
 961   return profile->CreateRequestContextForStoragePartition(
 962       partition_path,
 963       in_memory,
 964       protocol_handlers,
 965       request_interceptors.Pass());
 966 }
 967
 968 bool ChromeContentBrowserClient::IsHandledURL(const GURL& url) {
 969   return ProfileIOData::IsHandledURL(url);
 970 }
 971
 972 bool ChromeContentBrowserClient::CanCommitURL(
 973     content::RenderProcessHost* process_host,
 974     const GURL& url) {
 975 #if defined(ENABLE_EXTENSIONS)
 976   return ChromeContentBrowserClientExtensionsPart::CanCommitURL(
 977       process_host, url);
 978 #else
 979   return true;
 980 #endif
 981 }
 982
 983 bool ChromeContentBrowserClient::ShouldAllowOpenURL(
 984     content::SiteInstance* site_instance, const GURL& url) {
 985   GURL from_url = site_instance->GetSiteURL();
 986
 987 #if defined(ENABLE_EXTENSIONS)
 988   bool result;
 989   if (ChromeContentBrowserClientExtensionsPart::ShouldAllowOpenURL(
 990       site_instance, from_url, url, &result))
 991     return result;
 992 #endif
 993
 994   // Do not allow chrome://chrome-signin navigate to other chrome:// URLs, since
 995   // the signin page may host untrusted web content.
 996   if (from_url.GetOrigin().spec() == chrome::kChromeUIChromeSigninURL &&
 997       url.SchemeIs(content::kChromeUIScheme) &&
 998       url.host() != chrome::kChromeUIChromeSigninHost) {
 999     VLOG(1) << "Blocked navigation to " << url.spec() << " from "
1000             << chrome::kChromeUIChromeSigninURL;
1001     return false;
1002   }
1003
1004   return true;
1005 }
1006
1007 bool ChromeContentBrowserClient::IsSuitableHost(
1008     content::RenderProcessHost* process_host,
1009     const GURL& site_url) {
1010   Profile* profile =
1011       Profile::FromBrowserContext(process_host->GetBrowserContext());
1012   // This may be NULL during tests. In that case, just assume any site can
1013   // share any host.
1014   if (!profile)
1015     return true;
1016
1017   // Instant URLs should only be in the instant process and instant process
1018   // should only have Instant URLs.
1019   InstantService* instant_service =
1020       InstantServiceFactory::GetForProfile(profile);
1021   if (instant_service) {
1022     bool is_instant_process = instant_service->IsInstantProcess(
1023         process_host->GetID());
1024     bool should_be_in_instant_process =
1025         chrome::ShouldAssignURLToInstantRenderer(site_url, profile);
1026     if (is_instant_process || should_be_in_instant_process)
1027       return is_instant_process && should_be_in_instant_process;
1028   }
1029
1030 #if defined(ENABLE_EXTENSIONS)
1031   return ChromeContentBrowserClientExtensionsPart::IsSuitableHost(
1032       profile, process_host, site_url);
1033 #else
1034   return true;
1035 #endif
1036 }
1037
1038 bool ChromeContentBrowserClient::MayReuseHost(
1039     content::RenderProcessHost* process_host) {
1040   // If there is currently a prerender in progress for the host provided,
1041   // it may not be shared. We require prerenders to be by themselves in a
1042   // separate process so that we can monitor their resource usage.
1043   Profile* profile = Profile::FromBrowserContext(
1044       process_host->GetBrowserContext());
1045   prerender::PrerenderManager* prerender_manager =
1046       prerender::PrerenderManagerFactory::GetForProfile(profile);
1047   if (prerender_manager &&
1048       !prerender_manager->MayReuseProcessHost(process_host)) {
1049     return false;
1050   }
1051
1052   return true;
1053 }
1054
1055 bool ChromeContentBrowserClient::ShouldTryToUseExistingProcessHost(
1056     content::BrowserContext* browser_context, const GURL& url) {
1057   // It has to be a valid URL for us to check for an extension.
1058   if (!url.is_valid())
1059     return false;
1060
1061 #if defined(ENABLE_EXTENSIONS)
1062   Profile* profile = Profile::FromBrowserContext(browser_context);
1063   return ChromeContentBrowserClientExtensionsPart::
1064       ShouldTryToUseExistingProcessHost(
1065           profile, url);
1066 #else
1067   return false;
1068 #endif
1069 }
1070
1071 void ChromeContentBrowserClient::SiteInstanceGotProcess(
1072     SiteInstance* site_instance) {
1073   CHECK(site_instance->HasProcess());
1074
1075   Profile* profile = Profile::FromBrowserContext(
1076       site_instance->GetBrowserContext());
1077   if (!profile)
1078     return;
1079
1080   // Remember the ID of the Instant process to signal the renderer process
1081   // on startup in |AppendExtraCommandLineSwitches| below.
1082   if (chrome::ShouldAssignURLToInstantRenderer(
1083           site_instance->GetSiteURL(), profile)) {
1084     InstantService* instant_service =
1085         InstantServiceFactory::GetForProfile(profile);
1086     if (instant_service)
1087       instant_service->AddInstantProcess(site_instance->GetProcess()->GetID());
1088   }
1089
1090   for (size_t i = 0; i < extra_parts_.size(); ++i)
1091     extra_parts_[i]->SiteInstanceGotProcess(site_instance);
1092 }
1093
1094 void ChromeContentBrowserClient::SiteInstanceDeleting(
1095     SiteInstance* site_instance) {
1096   if (!site_instance->HasProcess())
1097     return;
1098
1099   for (size_t i = 0; i < extra_parts_.size(); ++i)
1100     extra_parts_[i]->SiteInstanceDeleting(site_instance);
1101 }
1102
1103 bool ChromeContentBrowserClient::ShouldSwapBrowsingInstancesForNavigation(
1104     SiteInstance* site_instance,
1105     const GURL& current_url,
1106     const GURL& new_url) {
1107 #if defined(ENABLE_EXTENSIONS)
1108   return ChromeContentBrowserClientExtensionsPart::
1109       ShouldSwapBrowsingInstancesForNavigation(
1110           site_instance, current_url, new_url);
1111 #else
1112   return false;
1113 #endif
1114 }
1115
1116 bool ChromeContentBrowserClient::ShouldSwapProcessesForRedirect(
1117     content::ResourceContext* resource_context, const GURL& current_url,
1118     const GURL& new_url) {
1119 #if defined(ENABLE_EXTENSIONS)
1120   return ChromeContentBrowserClientExtensionsPart::
1121       ShouldSwapProcessesForRedirect(resource_context, current_url, new_url);
1122 #else
1123   return false;
1124 #endif
1125 }
1126
1127 bool ChromeContentBrowserClient::ShouldAssignSiteForURL(const GURL& url) {
1128   return !url.SchemeIs(chrome::kChromeNativeScheme);
1129 }
1130
1131 std::string ChromeContentBrowserClient::GetCanonicalEncodingNameByAliasName(
1132     const std::string& alias_name) {
1133   return CharacterEncoding::GetCanonicalEncodingNameByAliasName(alias_name);
1134 }
1135
1136 namespace {
1137
1138 bool IsAutoReloadEnabled() {
1139   // Fetch the field trial, even though we don't use it. Calling FindFullName()
1140   // causes the field-trial mechanism to report which group we're in, which
1141   // might reflect a hard disable or hard enable via flag, both of which have
1142   // their own field trial groups. This lets us know what percentage of users
1143   // manually enable or disable auto-reload.
1144   std::string group = base::FieldTrialList::FindFullName(
1145       "AutoReloadExperiment");
1146   const base::CommandLine& browser_command_line =
1147       *base::CommandLine::ForCurrentProcess();
1148   if (browser_command_line.HasSwitch(switches::kEnableOfflineAutoReload))
1149     return true;
1150   if (browser_command_line.HasSwitch(switches::kDisableOfflineAutoReload))
1151     return false;
1152   return true;
1153 }
1154
1155 bool IsAutoReloadVisibleOnlyEnabled() {
1156   // See the block comment in IsAutoReloadEnabled().
1157   std::string group = base::FieldTrialList::FindFullName(
1158       "AutoReloadVisibleOnlyExperiment");
1159   const base::CommandLine& browser_command_line =
1160       *base::CommandLine::ForCurrentProcess();
1161   if (browser_command_line.HasSwitch(
1162       switches::kEnableOfflineAutoReloadVisibleOnly)) {
1163     return true;
1164   }
1165   if (browser_command_line.HasSwitch(
1166       switches::kDisableOfflineAutoReloadVisibleOnly)) {
1167     return false;
1168   }
1169   return true;
1170 }
1171
1172 }  // namespace
1173
1174 void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
1175     base::CommandLine* command_line,
1176     int child_process_id) {
1177 #if defined(OS_MACOSX)
1178   scoped_ptr<metrics::ClientInfo> client_info =
1179       GoogleUpdateSettings::LoadMetricsClientInfo();
1180   if (client_info) {
1181     command_line->AppendSwitchASCII(switches::kMetricsClientID,
1182                                     client_info->client_id);
1183   }
1184 #elif defined(OS_POSIX)
1185   if (breakpad::IsCrashReporterEnabled()) {
1186     scoped_ptr<metrics::ClientInfo> client_info =
1187         GoogleUpdateSettings::LoadMetricsClientInfo();
1188     command_line->AppendSwitchASCII(switches::kEnableCrashReporter,
1189                                     client_info ? client_info->client_id
1190                                                 : std::string());
1191   }
1192 #endif
1193
1194   if (logging::DialogsAreSuppressed())
1195     command_line->AppendSwitch(switches::kNoErrorDialogs);
1196
1197   std::string process_type =
1198       command_line->GetSwitchValueASCII(switches::kProcessType);
1199   const base::CommandLine& browser_command_line =
1200       *base::CommandLine::ForCurrentProcess();
1201
1202   static const char* const kCommonSwitchNames[] = {
1203     switches::kUserAgent,
1204     switches::kUserDataDir,  // Make logs go to the right file.
1205   };
1206   command_line->CopySwitchesFrom(browser_command_line, kCommonSwitchNames,
1207                                  arraysize(kCommonSwitchNames));
1208
1209 #if defined(ENABLE_IPC_FUZZER)
1210   static const char* const kIpcFuzzerSwitches[] = {
1211       switches::kIpcDumpDirectory,
1212       switches::kIpcFuzzerTestcase,
1213   };
1214   command_line->CopySwitchesFrom(browser_command_line, kIpcFuzzerSwitches,
1215                                  arraysize(kIpcFuzzerSwitches));
1216 #endif
1217
1218 #if defined(OS_CHROMEOS)
1219   static const char* const kChromeOSSwitches[] = {
1220     switches::kDisableDinosaurEasterEgg,
1221   };
1222   command_line->CopySwitchesFrom(browser_command_line, kChromeOSSwitches,
1223                                  arraysize(kChromeOSSwitches));
1224
1225   // On Chrome OS need to pass primary user homedir (in multi-profiles session).
1226   base::FilePath homedir;
1227   PathService::Get(base::DIR_HOME, &homedir);
1228   command_line->AppendSwitchASCII(chromeos::switches::kHomedir,
1229                                   homedir.value().c_str());
1230 #endif
1231
1232 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1233 #if defined(V8_USE_EXTERNAL_STARTUP_DATA)
1234   if (process_type != switches::kZygoteProcess) {
1235     command_line->AppendSwitch(::switches::kV8NativesPassedByFD);
1236     command_line->AppendSwitch(::switches::kV8SnapshotPassedByFD);
1237   }
1238 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
1239 #endif  // OS_POSIX && !OS_MACOSX
1240
1241   if (process_type == switches::kRendererProcess) {
1242     content::RenderProcessHost* process =
1243         content::RenderProcessHost::FromID(child_process_id);
1244     Profile* profile =
1245         process ? Profile::FromBrowserContext(process->GetBrowserContext())
1246                 : NULL;
1247     for (size_t i = 0; i < extra_parts_.size(); ++i) {
1248       extra_parts_[i]->AppendExtraRendererCommandLineSwitches(
1249           command_line, process, profile);
1250     }
1251
1252 #if defined(OS_CHROMEOS)
1253     const std::string& login_profile =
1254         browser_command_line.GetSwitchValueASCII(
1255             chromeos::switches::kLoginProfile);
1256     if (!login_profile.empty())
1257       command_line->AppendSwitchASCII(
1258           chromeos::switches::kLoginProfile, login_profile);
1259 #endif
1260
1261 #if defined(ENABLE_WEBRTC)
1262     MaybeCopyDisableWebRtcEncryptionSwitch(command_line,
1263                                            browser_command_line,
1264                                            VersionInfo::GetChannel());
1265 #endif
1266
1267     if (process) {
1268       PrefService* prefs = profile->GetPrefs();
1269       // Currently this pref is only registered if applied via a policy.
1270       if (prefs->HasPrefPath(prefs::kDisable3DAPIs) &&
1271           prefs->GetBoolean(prefs::kDisable3DAPIs)) {
1272         // Turn this policy into a command line switch.
1273         command_line->AppendSwitch(switches::kDisable3DAPIs);
1274       }
1275
1276       const base::ListValue* switches =
1277           prefs->GetList(prefs::kEnableDeprecatedWebPlatformFeatures);
1278       if (switches) {
1279         // Enable any deprecated features that have been re-enabled by policy.
1280         for (base::ListValue::const_iterator it = switches->begin();
1281              it != switches->end(); ++it) {
1282           std::string switch_to_enable;
1283           if ((*it)->GetAsString(&switch_to_enable))
1284             command_line->AppendSwitch(switch_to_enable);
1285         }
1286       }
1287
1288       // Disable client-side phishing detection in the renderer if it is
1289       // disabled in the Profile preferences or the browser process.
1290       if (!prefs->GetBoolean(prefs::kSafeBrowsingEnabled) ||
1291           !g_browser_process->safe_browsing_detection_service()) {
1292         command_line->AppendSwitch(
1293             switches::kDisableClientSidePhishingDetection);
1294       }
1295
1296       if (prefs->GetBoolean(prefs::kPrintPreviewDisabled))
1297         command_line->AppendSwitch(switches::kDisablePrintPreview);
1298
1299       InstantService* instant_service =
1300           InstantServiceFactory::GetForProfile(profile);
1301       if (instant_service &&
1302           instant_service->IsInstantProcess(process->GetID()))
1303         command_line->AppendSwitch(switches::kInstantProcess);
1304     }
1305
1306     if (IsAutoReloadEnabled())
1307       command_line->AppendSwitch(switches::kEnableOfflineAutoReload);
1308     if (IsAutoReloadVisibleOnlyEnabled()) {
1309       command_line->AppendSwitch(
1310           switches::kEnableOfflineAutoReloadVisibleOnly);
1311     }
1312
1313     {
1314       // Enable showing a saved copy if this session is in the field trial
1315       // or the user explicitly enabled it.  Note that as far as the
1316       // renderer is concerned, the feature is enabled if-and-only-if
1317       // one of the kEnableShowSavedCopy* switches is on the command
1318       // line; the yes/no/default behavior is only at the browser
1319       // command line level.
1320
1321       // Command line switches override
1322       const std::string& show_saved_copy_value =
1323           browser_command_line.GetSwitchValueASCII(switches::kShowSavedCopy);
1324       if (show_saved_copy_value == switches::kEnableShowSavedCopyPrimary ||
1325           show_saved_copy_value == switches::kEnableShowSavedCopySecondary ||
1326           show_saved_copy_value == switches::kDisableShowSavedCopy) {
1327         command_line->AppendSwitchASCII(switches::kShowSavedCopy,
1328                                         show_saved_copy_value);
1329       } else {
1330         std::string group =
1331             base::FieldTrialList::FindFullName("LoadStaleCacheExperiment");
1332
1333         if (group == "Primary") {
1334           command_line->AppendSwitchASCII(
1335               switches::kShowSavedCopy, switches::kEnableShowSavedCopyPrimary);
1336         } else if (group == "Secondary") {
1337           command_line->AppendSwitchASCII(
1338               switches::kShowSavedCopy,
1339               switches::kEnableShowSavedCopySecondary);
1340         }
1341       }
1342     }
1343
1344     // Please keep this in alphabetical order.
1345     static const char* const kSwitchNames[] = {
1346       autofill::switches::kDisableFillOnAccountSelect,
1347       autofill::switches::kDisablePasswordGeneration,
1348       autofill::switches::kEnableFillOnAccountSelect,
1349       autofill::switches::kEnableFillOnAccountSelectNoHighlighting,
1350       autofill::switches::kEnablePasswordGeneration,
1351       autofill::switches::kEnablePasswordSaveOnInPageNavigation,
1352       autofill::switches::kEnableSingleClickAutofill,
1353       autofill::switches::kIgnoreAutocompleteOffForAutofill,
1354       autofill::switches::kLocalHeuristicsOnlyForPasswordGeneration,
1355 #if defined(ENABLE_EXTENSIONS)
1356       extensions::switches::kAllowHTTPBackgroundPage,
1357       extensions::switches::kAllowLegacyExtensionManifests,
1358       extensions::switches::kEnableSurfaceWorker,
1359       extensions::switches::kEnableAppWindowControls,
1360       extensions::switches::kEnableEmbeddedExtensionOptions,
1361       extensions::switches::kEnableExperimentalExtensionApis,
1362       extensions::switches::kExtensionsOnChromeURLs,
1363       extensions::switches::kWhitelistedExtensionID,
1364 #endif
1365       switches::kAllowInsecureLocalhost,
1366       switches::kAppsCheckoutURL,
1367       switches::kAppsGalleryURL,
1368       switches::kCloudPrintURL,
1369       switches::kCloudPrintXmppEndpoint,
1370       switches::kDisableBundledPpapiFlash,
1371       switches::kDisableCastStreamingHWEncoding,
1372       switches::kDisableJavaScriptHarmonyShipping,
1373       switches::kDisableNewBookmarkApps,
1374       switches::kDisableOutOfProcessPdf,
1375       switches::kEnableBenchmarking,
1376       switches::kEnableNaCl,
1377 #if !defined(DISABLE_NACL)
1378       switches::kEnableNaClDebug,
1379       switches::kEnableNaClNonSfiMode,
1380       switches::kEnablePNaClSubzero,
1381 #endif
1382       switches::kEnableNetBenchmarking,
1383       switches::kEnableNewBookmarkApps,
1384       switches::kEnableOutOfProcessPdf,
1385       switches::kEnablePluginPlaceholderShadowDom,
1386       switches::kJavaScriptHarmony,
1387       switches::kMessageLoopHistogrammer,
1388       switches::kPpapiFlashArgs,
1389       switches::kPpapiFlashPath,
1390       switches::kPpapiFlashVersion,
1391       switches::kProfilingAtStart,
1392       switches::kProfilingFile,
1393       switches::kProfilingFlush,
1394       translate::switches::kTranslateSecurityOrigin,
1395     };
1396
1397     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1398                                    arraysize(kSwitchNames));
1399   } else if (process_type == switches::kUtilityProcess) {
1400 #if defined(ENABLE_EXTENSIONS)
1401     static const char* const kSwitchNames[] = {
1402       extensions::switches::kAllowHTTPBackgroundPage,
1403       extensions::switches::kEnableExperimentalExtensionApis,
1404       extensions::switches::kExtensionsOnChromeURLs,
1405       extensions::switches::kWhitelistedExtensionID,
1406     };
1407
1408     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1409                                    arraysize(kSwitchNames));
1410 #endif
1411   } else if (process_type == switches::kPluginProcess) {
1412 #if defined(OS_CHROMEOS)
1413     static const char* const kSwitchNames[] = {
1414       chromeos::switches::kLoginProfile,
1415     };
1416
1417     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1418                                    arraysize(kSwitchNames));
1419 #endif
1420   } else if (process_type == switches::kZygoteProcess) {
1421     static const char* const kSwitchNames[] = {
1422       // Load (in-process) Pepper plugins in-process in the zygote pre-sandbox.
1423       switches::kDisableBundledPpapiFlash,
1424 #if !defined(DISABLE_NACL)
1425       switches::kEnableNaClDebug,
1426       switches::kEnableNaClNonSfiMode,
1427       switches::kEnablePNaClSubzero,
1428       switches::kNaClDangerousNoSandboxNonSfi,
1429       switches::kUseNaClHelperNonSfi,
1430 #endif
1431       switches::kPpapiFlashPath,
1432       switches::kPpapiFlashVersion,
1433     };
1434
1435     command_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
1436                                    arraysize(kSwitchNames));
1437   } else if (process_type == switches::kGpuProcess) {
1438     // If --ignore-gpu-blacklist is passed in, don't send in crash reports
1439     // because GPU is expected to be unreliable.
1440     if (browser_command_line.HasSwitch(switches::kIgnoreGpuBlacklist) &&
1441         !command_line->HasSwitch(switches::kDisableBreakpad))
1442       command_line->AppendSwitch(switches::kDisableBreakpad);
1443   }
1444
1445   // The command line switch kEnableBenchmarking needs to be specified along
1446   // with the kEnableStatsTable switch to ensure that the stats table global
1447   // is initialized correctly.
1448   if (command_line->HasSwitch(switches::kEnableBenchmarking))
1449     DCHECK(command_line->HasSwitch(switches::kEnableStatsTable));
1450 }
1451
1452 std::string ChromeContentBrowserClient::GetApplicationLocale() {
1453   if (BrowserThread::CurrentlyOn(BrowserThread::IO))
1454     return g_io_thread_application_locale.Get();
1455   return g_browser_process->GetApplicationLocale();
1456 }
1457
1458 std::string ChromeContentBrowserClient::GetAcceptLangs(
1459     content::BrowserContext* context) {
1460   Profile* profile = Profile::FromBrowserContext(context);
1461   return profile->GetPrefs()->GetString(prefs::kAcceptLanguages);
1462 }
1463
1464 const gfx::ImageSkia* ChromeContentBrowserClient::GetDefaultFavicon() {
1465   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
1466   return rb.GetNativeImageNamed(IDR_DEFAULT_FAVICON).ToImageSkia();
1467 }
1468
1469 bool ChromeContentBrowserClient::AllowAppCache(
1470     const GURL& manifest_url,
1471     const GURL& first_party,
1472     content::ResourceContext* context) {
1473   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1474   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1475   return io_data->GetCookieSettings()->
1476       IsSettingCookieAllowed(manifest_url, first_party);
1477 }
1478
1479 bool ChromeContentBrowserClient::AllowServiceWorker(
1480     const GURL& scope,
1481     const GURL& first_party_url,
1482     content::ResourceContext* context) {
1483   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1484   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1485   return io_data->GetCookieSettings()->
1486       IsSettingCookieAllowed(scope, first_party_url);
1487 }
1488
1489 bool ChromeContentBrowserClient::AllowGetCookie(
1490     const GURL& url,
1491     const GURL& first_party,
1492     const net::CookieList& cookie_list,
1493     content::ResourceContext* context,
1494     int render_process_id,
1495     int render_frame_id) {
1496   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1497   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1498   bool allow = io_data->GetCookieSettings()->
1499       IsReadingCookieAllowed(url, first_party);
1500
1501   BrowserThread::PostTask(
1502       BrowserThread::UI, FROM_HERE,
1503       base::Bind(&TabSpecificContentSettings::CookiesRead, render_process_id,
1504                  render_frame_id, url, first_party, cookie_list, !allow));
1505   return allow;
1506 }
1507
1508 bool ChromeContentBrowserClient::AllowSetCookie(
1509     const GURL& url,
1510     const GURL& first_party,
1511     const std::string& cookie_line,
1512     content::ResourceContext* context,
1513     int render_process_id,
1514     int render_frame_id,
1515     net::CookieOptions* options) {
1516   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1517   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1518   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1519   bool allow = cookie_settings->IsSettingCookieAllowed(url, first_party);
1520
1521   BrowserThread::PostTask(
1522       BrowserThread::UI, FROM_HERE,
1523       base::Bind(&TabSpecificContentSettings::CookieChanged, render_process_id,
1524                  render_frame_id, url, first_party, cookie_line, *options,
1525                  !allow));
1526   return allow;
1527 }
1528
1529 bool ChromeContentBrowserClient::AllowSaveLocalState(
1530     content::ResourceContext* context) {
1531   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1532   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1533   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1534   ContentSetting setting = cookie_settings->GetDefaultCookieSetting(NULL);
1535
1536   // TODO(bauerb): Should we also disallow local state if the default is BLOCK?
1537   // Could we even support per-origin settings?
1538   return setting != CONTENT_SETTING_SESSION_ONLY;
1539 }
1540
1541 bool ChromeContentBrowserClient::AllowWorkerDatabase(
1542     const GURL& url,
1543     const base::string16& name,
1544     const base::string16& display_name,
1545     unsigned long estimated_size,
1546     content::ResourceContext* context,
1547     const std::vector<std::pair<int, int> >& render_frames) {
1548   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1549   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1550   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1551   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1552
1553   // Record access to database for potential display in UI.
1554   std::vector<std::pair<int, int> >::const_iterator i;
1555   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1556     BrowserThread::PostTask(
1557         BrowserThread::UI, FROM_HERE,
1558         base::Bind(&TabSpecificContentSettings::WebDatabaseAccessed,
1559                    i->first, i->second, url, name, display_name, !allow));
1560   }
1561
1562   return allow;
1563 }
1564
1565 void ChromeContentBrowserClient::AllowWorkerFileSystem(
1566     const GURL& url,
1567     content::ResourceContext* context,
1568     const std::vector<std::pair<int, int> >& render_frames,
1569     base::Callback<void(bool)> callback) {
1570   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1571   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1572   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1573   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1574
1575 #if defined(ENABLE_EXTENSIONS)
1576   GuestPermissionRequestHelper(url, render_frames, callback, allow);
1577 #else
1578   FileSystemAccessed(url, render_frames, callback, allow);
1579 #endif
1580 }
1581
1582 #if defined(ENABLE_EXTENSIONS)
1583 void ChromeContentBrowserClient::GuestPermissionRequestHelper(
1584     const GURL& url,
1585     const std::vector<std::pair<int, int> >& render_frames,
1586     base::Callback<void(bool)> callback,
1587     bool allow) {
1588   DCHECK(BrowserThread:: CurrentlyOn(BrowserThread::IO));
1589   std::vector<std::pair<int, int> >::const_iterator i;
1590   std::map<int, int> process_map;
1591   std::map<int, int>::const_iterator it;
1592   bool has_web_view_guest = false;
1593   // Record access to file system for potential display in UI.
1594   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1595     if (process_map.find(i->first) != process_map.end())
1596       continue;
1597
1598     process_map.insert(std::pair<int, int>(i->first, i->second));
1599
1600     if (extensions::WebViewRendererState::GetInstance()->IsGuest(i->first))
1601       has_web_view_guest = true;
1602   }
1603   if (!has_web_view_guest) {
1604     FileSystemAccessed(url, render_frames, callback, allow);
1605     return;
1606   }
1607   DCHECK_EQ(1U, process_map.size());
1608   it = process_map.begin();
1609   BrowserThread::PostTask(
1610       BrowserThread::UI,
1611       FROM_HERE,
1612       base::Bind(&ChromeContentBrowserClient::
1613                   RequestFileSystemPermissionOnUIThread,
1614                   it->first,
1615                   it->second,
1616                   url,
1617                   allow,
1618                   base::Bind(&ChromeContentBrowserClient::FileSystemAccessed,
1619                             weak_factory_.GetWeakPtr(),
1620                             url,
1621                             render_frames,
1622                             callback)));
1623 }
1624
1625 void ChromeContentBrowserClient::RequestFileSystemPermissionOnUIThread(
1626     int render_process_id,
1627     int render_frame_id,
1628     const GURL& url,
1629     bool allowed_by_default,
1630     const base::Callback<void(bool)>& callback) {
1631   DCHECK(BrowserThread:: CurrentlyOn(BrowserThread::UI));
1632   extensions::WebViewPermissionHelper* web_view_permission_helper =
1633       extensions::WebViewPermissionHelper::FromFrameID(
1634           render_process_id, render_frame_id);
1635   web_view_permission_helper->RequestFileSystemPermission(url,
1636                                                           allowed_by_default,
1637                                                           callback);
1638 }
1639 #endif
1640
1641 void ChromeContentBrowserClient::FileSystemAccessed(
1642     const GURL& url,
1643     const std::vector<std::pair<int, int> >& render_frames,
1644     base::Callback<void(bool)> callback,
1645     bool allow) {
1646   // Record access to file system for potential display in UI.
1647   std::vector<std::pair<int, int> >::const_iterator i;
1648   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1649     BrowserThread::PostTask(
1650         BrowserThread::UI,
1651         FROM_HERE,
1652         base::Bind(&TabSpecificContentSettings::FileSystemAccessed,
1653                    i->first, i->second, url, !allow));
1654   }
1655   callback.Run(allow);
1656 }
1657
1658 bool ChromeContentBrowserClient::AllowWorkerIndexedDB(
1659     const GURL& url,
1660     const base::string16& name,
1661     content::ResourceContext* context,
1662     const std::vector<std::pair<int, int> >& render_frames) {
1663   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1664   ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1665   CookieSettings* cookie_settings = io_data->GetCookieSettings();
1666   bool allow = cookie_settings->IsSettingCookieAllowed(url, url);
1667
1668   // Record access to IndexedDB for potential display in UI.
1669   std::vector<std::pair<int, int> >::const_iterator i;
1670   for (i = render_frames.begin(); i != render_frames.end(); ++i) {
1671     BrowserThread::PostTask(
1672         BrowserThread::UI, FROM_HERE,
1673         base::Bind(&TabSpecificContentSettings::IndexedDBAccessed,
1674                    i->first, i->second, url, name, !allow));
1675   }
1676
1677   return allow;
1678 }
1679
1680 net::URLRequestContext*
1681 ChromeContentBrowserClient::OverrideRequestContextForURL(
1682     const GURL& url, content::ResourceContext* context) {
1683   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1684 #if defined(ENABLE_EXTENSIONS)
1685   if (url.SchemeIs(extensions::kExtensionScheme)) {
1686     ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1687     return io_data->extensions_request_context();
1688   }
1689 #endif
1690
1691   return NULL;
1692 }
1693
1694 QuotaPermissionContext*
1695 ChromeContentBrowserClient::CreateQuotaPermissionContext() {
1696   return new ChromeQuotaPermissionContext();
1697 }
1698
1699 void ChromeContentBrowserClient::AllowCertificateError(
1700     int render_process_id,
1701     int render_frame_id,
1702     int cert_error,
1703     const net::SSLInfo& ssl_info,
1704     const GURL& request_url,
1705     ResourceType resource_type,
1706     bool overridable,
1707     bool strict_enforcement,
1708     bool expired_previous_decision,
1709     const base::Callback<void(bool)>& callback,
1710     content::CertificateRequestResultType* result) {
1711   if (resource_type != content::RESOURCE_TYPE_MAIN_FRAME) {
1712     // A sub-resource has a certificate error.  The user doesn't really
1713     // have a context for making the right decision, so block the
1714     // request hard, without an info bar to allow showing the insecure
1715     // content.
1716     *result = content::CERTIFICATE_REQUEST_RESULT_TYPE_DENY;
1717     return;
1718   }
1719
1720   // If the tab is being prerendered, cancel the prerender and the request.
1721   content::RenderFrameHost* render_frame_host =
1722       content::RenderFrameHost::FromID(render_process_id, render_frame_id);
1723   WebContents* tab = WebContents::FromRenderFrameHost(render_frame_host);
1724   if (!tab) {
1725     NOTREACHED();
1726     return;
1727   }
1728
1729   prerender::PrerenderContents* prerender_contents =
1730       prerender::PrerenderContents::FromWebContents(tab);
1731   if (prerender_contents) {
1732     prerender_contents->Destroy(prerender::FINAL_STATUS_SSL_ERROR);
1733     *result = content::CERTIFICATE_REQUEST_RESULT_TYPE_CANCEL;
1734     return;
1735   }
1736
1737   // Otherwise, display an SSL blocking page. The interstitial page takes
1738   // ownership of ssl_blocking_page.
1739   int options_mask = 0;
1740   if (overridable)
1741     options_mask |= SSLBlockingPage::OVERRIDABLE;
1742   if (strict_enforcement)
1743     options_mask |= SSLBlockingPage::STRICT_ENFORCEMENT;
1744   if (expired_previous_decision)
1745     options_mask |= SSLBlockingPage::EXPIRED_BUT_PREVIOUSLY_ALLOWED;
1746
1747   SafeBrowsingService* safe_browsing_service =
1748       g_browser_process->safe_browsing_service();
1749   scoped_ptr<SafeBrowsingSSLCertReporter> cert_reporter(
1750       new SafeBrowsingSSLCertReporter(safe_browsing_service
1751                                           ? safe_browsing_service->ui_manager()
1752                                           : nullptr));
1753   SSLErrorHandler::HandleSSLError(tab, cert_error, ssl_info, request_url,
1754                                   options_mask, cert_reporter.Pass(), callback);
1755 }
1756
1757 void ChromeContentBrowserClient::SelectClientCertificate(
1758     content::WebContents* web_contents,
1759     net::SSLCertRequestInfo* cert_request_info,
1760     scoped_ptr<content::ClientCertificateDelegate> delegate) {
1761   prerender::PrerenderContents* prerender_contents =
1762       prerender::PrerenderContents::FromWebContents(web_contents);
1763   if (prerender_contents) {
1764     prerender_contents->Destroy(
1765         prerender::FINAL_STATUS_SSL_CLIENT_CERTIFICATE_REQUESTED);
1766     return;
1767   }
1768
1769   GURL requesting_url("https://" + cert_request_info->host_and_port.ToString());
1770   DCHECK(requesting_url.is_valid())
1771       << "Invalid URL string: https://"
1772       << cert_request_info->host_and_port.ToString();
1773
1774   Profile* profile =
1775       Profile::FromBrowserContext(web_contents->GetBrowserContext());
1776   scoped_ptr<base::Value> filter =
1777       profile->GetHostContentSettingsMap()->GetWebsiteSetting(
1778           requesting_url,
1779           requesting_url,
1780           CONTENT_SETTINGS_TYPE_AUTO_SELECT_CERTIFICATE,
1781           std::string(),
1782           NULL);
1783
1784   if (filter.get()) {
1785     // Try to automatically select a client certificate.
1786     if (filter->IsType(base::Value::TYPE_DICTIONARY)) {
1787       base::DictionaryValue* filter_dict =
1788           static_cast<base::DictionaryValue*>(filter.get());
1789
1790       const std::vector<scoped_refptr<net::X509Certificate> >&
1791           all_client_certs = cert_request_info->client_certs;
1792       for (size_t i = 0; i < all_client_certs.size(); ++i) {
1793         if (CertMatchesFilter(*all_client_certs[i].get(), *filter_dict)) {
1794           // Use the first certificate that is matched by the filter.
1795           delegate->ContinueWithCertificate(all_client_certs[i].get());
1796           return;
1797         }
1798       }
1799     } else {
1800       NOTREACHED();
1801     }
1802   }
1803
1804   chrome::ShowSSLClientCertificateSelector(web_contents, cert_request_info,
1805                                            delegate.Pass());
1806 }
1807
1808 void ChromeContentBrowserClient::AddCertificate(
1809     net::CertificateMimeType cert_type,
1810     const void* cert_data,
1811     size_t cert_size,
1812     int render_process_id,
1813     int render_frame_id) {
1814   chrome::SSLAddCertificate(cert_type, cert_data, cert_size,
1815                             render_process_id, render_frame_id);
1816 }
1817
1818 content::MediaObserver* ChromeContentBrowserClient::GetMediaObserver() {
1819   return MediaCaptureDevicesDispatcher::GetInstance();
1820 }
1821
1822 content::PlatformNotificationService*
1823 ChromeContentBrowserClient::GetPlatformNotificationService() {
1824 #if defined(ENABLE_NOTIFICATIONS)
1825   return PlatformNotificationServiceImpl::GetInstance();
1826 #else
1827   NOTIMPLEMENTED();
1828   return NULL;
1829 #endif
1830 }
1831
1832 bool ChromeContentBrowserClient::CanCreateWindow(
1833     const GURL& opener_url,
1834     const GURL& opener_top_level_frame_url,
1835     const GURL& source_origin,
1836     WindowContainerType container_type,
1837     const GURL& target_url,
1838     const content::Referrer& referrer,
1839     WindowOpenDisposition disposition,
1840     const WebWindowFeatures& features,
1841     bool user_gesture,
1842     bool opener_suppressed,
1843     content::ResourceContext* context,
1844     int render_process_id,
1845     int opener_id,
1846     bool* no_javascript_access) {
1847   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
1848
1849   *no_javascript_access = false;
1850
1851   // If the opener is trying to create a background window but doesn't have
1852   // the appropriate permission, fail the attempt.
1853   if (container_type == WINDOW_CONTAINER_TYPE_BACKGROUND) {
1854 #if defined(ENABLE_EXTENSIONS)
1855     ProfileIOData* io_data = ProfileIOData::FromResourceContext(context);
1856     InfoMap* map = io_data->GetExtensionInfoMap();
1857     if (!map->SecurityOriginHasAPIPermission(
1858             source_origin,
1859             render_process_id,
1860             APIPermission::kBackground)) {
1861       return false;
1862     }
1863
1864     // Note: this use of GetExtensionOrAppByURL is safe but imperfect.  It may
1865     // return a recently installed Extension even if this CanCreateWindow call
1866     // was made by an old copy of the page in a normal web process.  That's ok,
1867     // because the permission check above would have caused an early return
1868     // already. We must use the full URL to find hosted apps, though, and not
1869     // just the origin.
1870     const Extension* extension =
1871         map->extensions().GetExtensionOrAppByURL(opener_url);
1872     if (extension && !extensions::BackgroundInfo::AllowJSAccess(extension))
1873       *no_javascript_access = true;
1874 #endif
1875
1876     return true;
1877   }
1878
1879 #if defined(ENABLE_EXTENSIONS)
1880   if (extensions::WebViewRendererState::GetInstance()->IsGuest(
1881       render_process_id))
1882     return true;
1883 #endif
1884
1885   HostContentSettingsMap* content_settings =
1886       ProfileIOData::FromResourceContext(context)->GetHostContentSettingsMap();
1887   BlockedWindowParams blocked_params(target_url,
1888                                      referrer,
1889                                      disposition,
1890                                      features,
1891                                      user_gesture,
1892                                      opener_suppressed,
1893                                      render_process_id,
1894                                      opener_id);
1895
1896   if (!user_gesture &&
1897       !base::CommandLine::ForCurrentProcess()->HasSwitch(
1898           switches::kDisablePopupBlocking)) {
1899     if (content_settings->GetContentSetting(opener_top_level_frame_url,
1900                                             opener_top_level_frame_url,
1901                                             CONTENT_SETTINGS_TYPE_POPUPS,
1902                                             std::string()) !=
1903         CONTENT_SETTING_ALLOW) {
1904       BrowserThread::PostTask(BrowserThread::UI,
1905                               FROM_HERE,
1906                               base::Bind(&HandleBlockedPopupOnUIThread,
1907                                          blocked_params));
1908       return false;
1909     }
1910   }
1911
1912 #if defined(OS_ANDROID)
1913   if (SingleTabModeTabHelper::IsRegistered(render_process_id, opener_id)) {
1914     BrowserThread::PostTask(BrowserThread::UI,
1915                             FROM_HERE,
1916                             base::Bind(&HandleSingleTabModeBlockOnUIThread,
1917                                        blocked_params));
1918     return false;
1919   }
1920 #endif
1921
1922   return true;
1923 }
1924
1925 void ChromeContentBrowserClient::ResourceDispatcherHostCreated() {
1926   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
1927   return g_browser_process->ResourceDispatcherHostCreated();
1928 }
1929
1930 content::SpeechRecognitionManagerDelegate*
1931     ChromeContentBrowserClient::CreateSpeechRecognitionManagerDelegate() {
1932   return new speech::ChromeSpeechRecognitionManagerDelegate();
1933 }
1934
1935 net::NetLog* ChromeContentBrowserClient::GetNetLog() {
1936   return g_browser_process->net_log();
1937 }
1938
1939 AccessTokenStore* ChromeContentBrowserClient::CreateAccessTokenStore() {
1940   return new ChromeAccessTokenStore();
1941 }
1942
1943 bool ChromeContentBrowserClient::IsFastShutdownPossible() {
1944   return true;
1945 }
1946
1947 void ChromeContentBrowserClient::OverrideWebkitPrefs(
1948     RenderViewHost* rvh, WebPreferences* web_prefs) {
1949   Profile* profile = Profile::FromBrowserContext(
1950       rvh->GetProcess()->GetBrowserContext());
1951   PrefService* prefs = profile->GetPrefs();
1952
1953   // Fill per-script font preferences. These are not registered on Android
1954   // - http://crbug.com/308033.
1955 #if !defined(OS_ANDROID)
1956   FontFamilyCache::FillFontFamilyMap(profile,
1957                                      prefs::kWebKitStandardFontFamilyMap,
1958                                      &web_prefs->standard_font_family_map);
1959   FontFamilyCache::FillFontFamilyMap(profile,
1960                                      prefs::kWebKitFixedFontFamilyMap,
1961                                      &web_prefs->fixed_font_family_map);
1962   FontFamilyCache::FillFontFamilyMap(profile,
1963                                      prefs::kWebKitSerifFontFamilyMap,
1964                                      &web_prefs->serif_font_family_map);
1965   FontFamilyCache::FillFontFamilyMap(profile,
1966                                      prefs::kWebKitSansSerifFontFamilyMap,
1967                                      &web_prefs->sans_serif_font_family_map);
1968   FontFamilyCache::FillFontFamilyMap(profile,
1969                                      prefs::kWebKitCursiveFontFamilyMap,
1970                                      &web_prefs->cursive_font_family_map);
1971   FontFamilyCache::FillFontFamilyMap(profile,
1972                                      prefs::kWebKitFantasyFontFamilyMap,
1973                                      &web_prefs->fantasy_font_family_map);
1974   FontFamilyCache::FillFontFamilyMap(profile,
1975                                      prefs::kWebKitPictographFontFamilyMap,
1976                                      &web_prefs->pictograph_font_family_map);
1977 #endif
1978
1979   web_prefs->default_font_size =
1980       prefs->GetInteger(prefs::kWebKitDefaultFontSize);
1981   web_prefs->default_fixed_font_size =
1982       prefs->GetInteger(prefs::kWebKitDefaultFixedFontSize);
1983   web_prefs->minimum_font_size =
1984       prefs->GetInteger(prefs::kWebKitMinimumFontSize);
1985   web_prefs->minimum_logical_font_size =
1986       prefs->GetInteger(prefs::kWebKitMinimumLogicalFontSize);
1987
1988   web_prefs->default_encoding = prefs->GetString(prefs::kDefaultCharset);
1989
1990   web_prefs->javascript_can_open_windows_automatically =
1991       prefs->GetBoolean(prefs::kWebKitJavascriptCanOpenWindowsAutomatically);
1992   web_prefs->dom_paste_enabled =
1993       prefs->GetBoolean(prefs::kWebKitDomPasteEnabled);
1994   web_prefs->shrinks_standalone_images_to_fit =
1995       prefs->GetBoolean(prefs::kWebKitShrinksStandaloneImagesToFit);
1996   web_prefs->tabs_to_links = prefs->GetBoolean(prefs::kWebkitTabsToLinks);
1997
1998   if (!prefs->GetBoolean(prefs::kWebKitJavascriptEnabled))
1999     web_prefs->javascript_enabled = false;
2000   if (!prefs->GetBoolean(prefs::kWebKitWebSecurityEnabled))
2001     web_prefs->web_security_enabled = false;
2002   if (!prefs->GetBoolean(prefs::kWebKitPluginsEnabled))
2003     web_prefs->plugins_enabled = false;
2004   if (!prefs->GetBoolean(prefs::kWebKitJavaEnabled))
2005     web_prefs->java_enabled = false;
2006   web_prefs->loads_images_automatically =
2007       prefs->GetBoolean(prefs::kWebKitLoadsImagesAutomatically);
2008
2009   if (prefs->GetBoolean(prefs::kDisable3DAPIs))
2010     web_prefs->experimental_webgl_enabled = false;
2011
2012   web_prefs->allow_displaying_insecure_content =
2013       prefs->GetBoolean(prefs::kWebKitAllowDisplayingInsecureContent);
2014   web_prefs->allow_running_insecure_content =
2015       prefs->GetBoolean(prefs::kWebKitAllowRunningInsecureContent);
2016 #if defined(OS_ANDROID)
2017   web_prefs->font_scale_factor =
2018       static_cast<float>(prefs->GetDouble(prefs::kWebKitFontScaleFactor));
2019   web_prefs->device_scale_adjustment = GetDeviceScaleAdjustment();
2020   web_prefs->force_enable_zoom =
2021       prefs->GetBoolean(prefs::kWebKitForceEnableZoom);
2022 #endif
2023
2024 #if defined(OS_ANDROID)
2025   web_prefs->password_echo_enabled =
2026       prefs->GetBoolean(prefs::kWebKitPasswordEchoEnabled);
2027 #else
2028   web_prefs->password_echo_enabled = browser_defaults::kPasswordEchoEnabled;
2029 #endif
2030
2031   web_prefs->asynchronous_spell_checking_enabled = true;
2032   web_prefs->unified_textchecker_enabled = true;
2033
2034   web_prefs->uses_universal_detector =
2035       prefs->GetBoolean(prefs::kWebKitUsesUniversalDetector);
2036   web_prefs->text_areas_are_resizable =
2037       prefs->GetBoolean(prefs::kWebKitTextAreasAreResizable);
2038   web_prefs->hyperlink_auditing_enabled =
2039       prefs->GetBoolean(prefs::kEnableHyperlinkAuditing);
2040
2041 #if defined(ENABLE_EXTENSIONS)
2042   std::string image_animation_policy =
2043       prefs->GetString(prefs::kAnimationPolicy);
2044   if (image_animation_policy == kAnimationPolicyOnce)
2045     web_prefs->animation_policy =
2046         content::IMAGE_ANIMATION_POLICY_ANIMATION_ONCE;
2047   else if (image_animation_policy == kAnimationPolicyNone)
2048     web_prefs->animation_policy = content::IMAGE_ANIMATION_POLICY_NO_ANIMATION;
2049   else
2050     web_prefs->animation_policy = content::IMAGE_ANIMATION_POLICY_ALLOWED;
2051 #endif
2052
2053   // Make sure we will set the default_encoding with canonical encoding name.
2054   web_prefs->default_encoding =
2055       CharacterEncoding::GetCanonicalEncodingNameByAliasName(
2056           web_prefs->default_encoding);
2057   if (web_prefs->default_encoding.empty()) {
2058     prefs->ClearPref(prefs::kDefaultCharset);
2059     web_prefs->default_encoding = prefs->GetString(prefs::kDefaultCharset);
2060   }
2061   DCHECK(!web_prefs->default_encoding.empty());
2062
2063   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
2064           switches::kEnablePotentiallyAnnoyingSecurityFeatures)) {
2065     web_prefs->disable_reading_from_canvas = true;
2066     web_prefs->strict_mixed_content_checking = true;
2067     web_prefs->strict_powerful_feature_restrictions = true;
2068   }
2069
2070   for (size_t i = 0; i < extra_parts_.size(); ++i)
2071     extra_parts_[i]->OverrideWebkitPrefs(rvh, web_prefs);
2072 }
2073
2074 void ChromeContentBrowserClient::BrowserURLHandlerCreated(
2075     BrowserURLHandler* handler) {
2076   for (size_t i = 0; i < extra_parts_.size(); ++i)
2077     extra_parts_[i]->BrowserURLHandlerCreated(handler);
2078
2079   // about: handler. Must come before chrome: handler, since it will
2080   // rewrite about: urls to chrome: URLs and then expect chrome: to
2081   // actually handle them.  Also relies on a preliminary fixup phase.
2082   handler->SetFixupHandler(&FixupBrowserAboutURL);
2083   handler->AddHandlerPair(&WillHandleBrowserAboutURL,
2084                           BrowserURLHandler::null_handler());
2085
2086 #if defined(OS_ANDROID)
2087   // Handler to rewrite chrome://newtab on Android.
2088   handler->AddHandlerPair(&chrome::android::HandleAndroidNativePageURL,
2089                           BrowserURLHandler::null_handler());
2090 #else
2091   // Handler to rewrite chrome://newtab for InstantExtended.
2092   handler->AddHandlerPair(&chrome::HandleNewTabURLRewrite,
2093                           &chrome::HandleNewTabURLReverseRewrite);
2094 #endif
2095
2096   // chrome: & friends.
2097   handler->AddHandlerPair(&HandleWebUI, &HandleWebUIReverse);
2098 }
2099
2100 void ChromeContentBrowserClient::ClearCache(RenderFrameHost* rfh) {
2101   Profile* profile = Profile::FromBrowserContext(
2102       rfh->GetSiteInstance()->GetProcess()->GetBrowserContext());
2103   BrowsingDataRemover* remover =
2104       BrowsingDataRemover::CreateForUnboundedRange(profile);
2105   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
2106                   BrowsingDataHelper::UNPROTECTED_WEB);
2107   // BrowsingDataRemover takes care of deleting itself when done.
2108 }
2109
2110 void ChromeContentBrowserClient::ClearCookies(RenderFrameHost* rfh) {
2111   Profile* profile = Profile::FromBrowserContext(
2112       rfh->GetSiteInstance()->GetProcess()->GetBrowserContext());
2113   BrowsingDataRemover* remover =
2114       BrowsingDataRemover::CreateForUnboundedRange(profile);
2115   int remove_mask = BrowsingDataRemover::REMOVE_SITE_DATA;
2116   remover->Remove(remove_mask, BrowsingDataHelper::UNPROTECTED_WEB);
2117   // BrowsingDataRemover takes care of deleting itself when done.
2118 }
2119
2120 base::FilePath ChromeContentBrowserClient::GetDefaultDownloadDirectory() {
2121   return DownloadPrefs::GetDefaultDownloadDirectory();
2122 }
2123
2124 std::string ChromeContentBrowserClient::GetDefaultDownloadName() {
2125   return l10n_util::GetStringUTF8(IDS_DEFAULT_DOWNLOAD_FILENAME);
2126 }
2127
2128 void ChromeContentBrowserClient::DidCreatePpapiPlugin(
2129     content::BrowserPpapiHost* browser_host) {
2130 #if defined(ENABLE_PLUGINS)
2131   ChromeContentBrowserClientPluginsPart::DidCreatePpapiPlugin(browser_host);
2132 #endif
2133 }
2134
2135 content::BrowserPpapiHost*
2136     ChromeContentBrowserClient::GetExternalBrowserPpapiHost(
2137         int plugin_process_id) {
2138 #if !defined(DISABLE_NACL)
2139   content::BrowserChildProcessHostIterator iter(PROCESS_TYPE_NACL_LOADER);
2140   while (!iter.Done()) {
2141     nacl::NaClProcessHost* host = static_cast<nacl::NaClProcessHost*>(
2142         iter.GetDelegate());
2143     if (host->process() &&
2144         host->process()->GetData().id == plugin_process_id) {
2145       // Found the plugin.
2146       return host->browser_ppapi_host();
2147     }
2148     ++iter;
2149   }
2150 #endif
2151   return NULL;
2152 }
2153
2154 bool ChromeContentBrowserClient::AllowPepperSocketAPI(
2155     content::BrowserContext* browser_context,
2156     const GURL& url,
2157     bool private_api,
2158     const content::SocketPermissionRequest* params) {
2159 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
2160   return ChromeContentBrowserClientPluginsPart::AllowPepperSocketAPI(
2161       browser_context, url, private_api, params, allowed_socket_origins_);
2162 #else
2163   return false;
2164 #endif
2165 }
2166
2167 ui::SelectFilePolicy* ChromeContentBrowserClient::CreateSelectFilePolicy(
2168     WebContents* web_contents) {
2169   return new ChromeSelectFilePolicy(web_contents);
2170 }
2171
2172 void ChromeContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
2173     std::vector<std::string>* additional_allowed_schemes) {
2174   ContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
2175       additional_allowed_schemes);
2176   additional_allowed_schemes->push_back(content::kChromeDevToolsScheme);
2177   additional_allowed_schemes->push_back(content::kChromeUIScheme);
2178   for (size_t i = 0; i < extra_parts_.size(); ++i) {
2179     extra_parts_[i]->GetAdditionalAllowedSchemesForFileSystem(
2180         additional_allowed_schemes);
2181   }
2182 }
2183
2184 void ChromeContentBrowserClient::GetURLRequestAutoMountHandlers(
2185     std::vector<storage::URLRequestAutoMountHandler>* handlers) {
2186   for (size_t i = 0; i < extra_parts_.size(); ++i)
2187     extra_parts_[i]->GetURLRequestAutoMountHandlers(handlers);
2188 }
2189
2190 void ChromeContentBrowserClient::GetAdditionalFileSystemBackends(
2191     content::BrowserContext* browser_context,
2192     const base::FilePath& storage_partition_path,
2193     ScopedVector<storage::FileSystemBackend>* additional_backends) {
2194 #if defined(OS_CHROMEOS)
2195   storage::ExternalMountPoints* external_mount_points =
2196       content::BrowserContext::GetMountPoints(browser_context);
2197   DCHECK(external_mount_points);
2198   chromeos::FileSystemBackend* backend = new chromeos::FileSystemBackend(
2199       new drive::FileSystemBackendDelegate,
2200       new chromeos::file_system_provider::BackendDelegate,
2201       new chromeos::MTPFileSystemBackendDelegate(storage_partition_path),
2202       external_mount_points,
2203       storage::ExternalMountPoints::GetSystemInstance());
2204   backend->AddSystemMountPoints();
2205   DCHECK(backend->CanHandleType(storage::kFileSystemTypeExternal));
2206   additional_backends->push_back(backend);
2207 #endif
2208
2209   for (size_t i = 0; i < extra_parts_.size(); ++i) {
2210     extra_parts_[i]->GetAdditionalFileSystemBackends(
2211         browser_context, storage_partition_path, additional_backends);
2212   }
2213 }
2214
2215 #if defined(OS_POSIX) && !defined(OS_MACOSX)
2216 void ChromeContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
2217     const base::CommandLine& command_line,
2218     int child_process_id,
2219     FileDescriptorInfo* mappings) {
2220 #if defined(V8_USE_EXTERNAL_STARTUP_DATA)
2221   if (v8_natives_fd_.get() == -1 || v8_snapshot_fd_.get() == -1) {
2222     int v8_natives_fd = -1;
2223     int v8_snapshot_fd = -1;
2224     if (gin::V8Initializer::OpenV8FilesForChildProcesses(&v8_natives_fd,
2225                                                          &v8_snapshot_fd)) {
2226       v8_natives_fd_.reset(v8_natives_fd);
2227       v8_snapshot_fd_.reset(v8_snapshot_fd);
2228     }
2229   }
2230   DCHECK(v8_natives_fd_.get() != -1 && v8_snapshot_fd_.get() != -1);
2231   mappings->Share(kV8NativesDataDescriptor, v8_natives_fd_.get());
2232   mappings->Share(kV8SnapshotDataDescriptor, v8_snapshot_fd_.get());
2233 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
2234
2235 #if defined(OS_ANDROID)
2236   base::FilePath data_path;
2237   PathService::Get(ui::DIR_RESOURCE_PAKS_ANDROID, &data_path);
2238   DCHECK(!data_path.empty());
2239
2240   int flags = base::File::FLAG_OPEN | base::File::FLAG_READ;
2241   base::FilePath chrome_resources_pak =
2242       data_path.AppendASCII("chrome_100_percent.pak");
2243   base::File file(chrome_resources_pak, flags);
2244   DCHECK(file.IsValid());
2245   mappings->Transfer(kAndroidChrome100PercentPakDescriptor,
2246                      base::ScopedFD(file.TakePlatformFile()));
2247
2248   const std::string locale = GetApplicationLocale();
2249   base::FilePath locale_pak = ResourceBundle::GetSharedInstance().
2250       GetLocaleFilePath(locale, false);
2251   file.Initialize(locale_pak, flags);
2252   DCHECK(file.IsValid());
2253   mappings->Transfer(kAndroidLocalePakDescriptor,
2254                      base::ScopedFD(file.TakePlatformFile()));
2255
2256   base::FilePath resources_pack_path;
2257   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
2258   file.Initialize(resources_pack_path, flags);
2259   DCHECK(file.IsValid());
2260   mappings->Transfer(kAndroidUIResourcesPakDescriptor,
2261                      base::ScopedFD(file.TakePlatformFile()));
2262
2263   if (breakpad::IsCrashReporterEnabled()) {
2264     file = breakpad::CrashDumpManager::GetInstance()->CreateMinidumpFile(
2265                child_process_id);
2266     if (file.IsValid()) {
2267       mappings->Transfer(kAndroidMinidumpDescriptor,
2268                          base::ScopedFD(file.TakePlatformFile()));
2269     } else {
2270       LOG(ERROR) << "Failed to create file for minidump, crash reporting will "
2271                  "be disabled for this process.";
2272     }
2273   }
2274
2275   base::FilePath app_data_path;
2276   PathService::Get(base::DIR_ANDROID_APP_DATA, &app_data_path);
2277   DCHECK(!app_data_path.empty());
2278
2279   flags = base::File::FLAG_OPEN | base::File::FLAG_READ;
2280   base::FilePath icudata_path =
2281       app_data_path.AppendASCII(base::i18n::kIcuDataFileName);
2282   base::File icudata_file(icudata_path, flags);
2283   DCHECK(icudata_file.IsValid());
2284   mappings->Transfer(kAndroidICUDataDescriptor,
2285                      base::ScopedFD(icudata_file.TakePlatformFile()));
2286 #else
2287   int crash_signal_fd = GetCrashSignalFD(command_line);
2288   if (crash_signal_fd >= 0) {
2289     mappings->Share(kCrashDumpSignal, crash_signal_fd);
2290   }
2291 #endif  // defined(OS_ANDROID)
2292 }
2293 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
2294
2295 #if defined(OS_WIN)
2296 const wchar_t* ChromeContentBrowserClient::GetResourceDllName() {
2297   return chrome::kBrowserResourcesDll;
2298 }
2299
2300 void ChromeContentBrowserClient::PreSpawnRenderer(
2301     sandbox::TargetPolicy* policy,
2302     bool* success) {
2303   // This code is duplicated in nacl_exe_win_64.cc.
2304   // Allow the server side of a pipe restricted to the "chrome.nacl."
2305   // namespace so that it cannot impersonate other system or other chrome
2306   // service pipes.
2307   sandbox::ResultCode result = policy->AddRule(
2308       sandbox::TargetPolicy::SUBSYS_NAMED_PIPES,
2309       sandbox::TargetPolicy::NAMEDPIPES_ALLOW_ANY,
2310       L"\\\\.\\pipe\\chrome.nacl.*");
2311   if (result != sandbox::SBOX_ALL_OK) {
2312     *success = false;
2313     return;
2314   }
2315
2316   // Renderers need to send named pipe handles and shared memory
2317   // segment handles to NaCl loader processes.
2318   result = policy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
2319                            sandbox::TargetPolicy::HANDLES_DUP_ANY,
2320                            L"File");
2321   if (result != sandbox::SBOX_ALL_OK) {
2322     *success = false;
2323     return;
2324   }
2325 }
2326 #endif
2327
2328 bool ChromeContentBrowserClient::CheckMediaAccessPermission(
2329     content::BrowserContext* browser_context,
2330     const GURL& security_origin,
2331     content::MediaStreamType type) {
2332   return MediaCaptureDevicesDispatcher::GetInstance()
2333       ->CheckMediaAccessPermission(
2334           browser_context, security_origin, type);
2335 }
2336
2337 void ChromeContentBrowserClient::OpenURL(
2338     content::BrowserContext* browser_context,
2339     const content::OpenURLParams& params,
2340     const base::Callback<void(content::WebContents*)>& callback) {
2341   DCHECK_CURRENTLY_ON(BrowserThread::UI);
2342
2343 #if !defined(OS_ANDROID) && !defined(OS_IOS)
2344   NavigateParams nav_params(Profile::FromBrowserContext(browser_context),
2345                             params.url,
2346                             params.transition);
2347   FillNavigateParamsFromOpenURLParams(&nav_params, params);
2348   nav_params.user_gesture = params.user_gesture;
2349
2350   Navigate(&nav_params);
2351   callback.Run(nav_params.target_contents);
2352 #elif defined(OS_ANDROID)
2353   chrome::android::ServiceTabLauncher::GetInstance()->LaunchTab(
2354       browser_context, params, callback);
2355 #else
2356   NOTIMPLEMENTED();
2357 #endif
2358 }
2359
2360 void ChromeContentBrowserClient::RecordURLMetric(const std::string& metric,
2361                                                  const GURL& url) {
2362   if (url.is_valid()) {
2363     rappor::SampleDomainAndRegistryFromGURL(g_browser_process->rappor_service(),
2364                                             metric, url);
2365   }
2366 }
2367
2368 content::DevToolsManagerDelegate*
2369 ChromeContentBrowserClient::GetDevToolsManagerDelegate() {
2370 #if defined(OS_ANDROID)
2371   return new DevToolsManagerDelegateAndroid();
2372 #else
2373   return new ChromeDevToolsManagerDelegate();
2374 #endif
2375 }
2376
2377 content::TracingDelegate* ChromeContentBrowserClient::GetTracingDelegate() {
2378 #if !defined(OS_ANDROID)
2379   return new ChromeTracingDelegate();
2380 #else
2381   return nullptr;
2382 #endif
2383 }
2384
2385 bool ChromeContentBrowserClient::IsPluginAllowedToCallRequestOSFileHandle(
2386     content::BrowserContext* browser_context,
2387     const GURL& url) {
2388 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
2389   return ChromeContentBrowserClientPluginsPart::
2390       IsPluginAllowedToCallRequestOSFileHandle(browser_context, url,
2391                                                allowed_file_handle_origins_);
2392 #else
2393   return false;
2394 #endif
2395 }
2396
2397 bool ChromeContentBrowserClient::IsPluginAllowedToUseDevChannelAPIs(
2398     content::BrowserContext* browser_context,
2399     const GURL& url) {
2400 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
2401   return ChromeContentBrowserClientPluginsPart::
2402       IsPluginAllowedToUseDevChannelAPIs(browser_context, url,
2403                                          allowed_dev_channel_origins_);
2404 #else
2405   return false;
2406 #endif
2407 }
2408
2409 void ChromeContentBrowserClient::OverridePageVisibilityState(
2410       RenderFrameHost* render_frame_host,
2411       blink::WebPageVisibilityState* visibility_state) {
2412   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
2413
2414   WebContents* web_contents =
2415       WebContents::FromRenderFrameHost(render_frame_host);
2416   DCHECK(web_contents);
2417
2418   Profile* profile =
2419       Profile::FromBrowserContext(web_contents->GetBrowserContext());
2420   prerender::PrerenderManager* prerender_manager =
2421       prerender::PrerenderManagerFactory::GetForProfile(profile);
2422   if (prerender_manager &&
2423       prerender_manager->IsWebContentsPrerendering(web_contents, nullptr)) {
2424     *visibility_state = blink::WebPageVisibilityStatePrerender;
2425   }
2426 }
2427
2428 #if defined(ENABLE_WEBRTC)
2429 void ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch(
2430     base::CommandLine* to_command_line,
2431     const base::CommandLine& from_command_line,
2432     VersionInfo::Channel channel) {
2433 #if defined(OS_ANDROID)
2434   const VersionInfo::Channel kMaxDisableEncryptionChannel =
2435       VersionInfo::CHANNEL_BETA;
2436 #else
2437   const VersionInfo::Channel kMaxDisableEncryptionChannel =
2438       VersionInfo::CHANNEL_DEV;
2439 #endif
2440   if (channel <= kMaxDisableEncryptionChannel) {
2441     static const char* const kWebRtcDevSwitchNames[] = {
2442       switches::kDisableWebRtcEncryption,
2443     };
2444     to_command_line->CopySwitchesFrom(from_command_line,
2445                                       kWebRtcDevSwitchNames,
2446                                       arraysize(kWebRtcDevSwitchNames));
2447   }
2448 }
2449 #endif  // defined(ENABLE_WEBRTC)
2450
2451 }  // namespace chrome