chrome/renderer/chrome_content_renderer_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/renderer/chrome_content_renderer_client.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/debug/crash_logging.h"
   9 #include "base/logging.h"
  10 #include "base/metrics/field_trial.h"
  11 #include "base/metrics/histogram.h"
  12 #include "base/metrics/user_metrics_action.h"
  13 #include "base/strings/string_number_conversions.h"
  14 #include "base/strings/string_util.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "base/values.h"
  17 #include "chrome/common/channel_info.h"
  18 #include "chrome/common/chrome_paths.h"
  19 #include "chrome/common/chrome_switches.h"
  20 #include "chrome/common/crash_keys.h"
  21 #include "chrome/common/extensions/extension_metrics.h"
  22 #include "chrome/common/localized_error.h"
  23 #include "chrome/common/pepper_permission_util.h"
  24 #include "chrome/common/render_messages.h"
  25 #include "chrome/common/secure_origin_whitelist.h"
  26 #include "chrome/common/url_constants.h"
  27 #include "chrome/grit/generated_resources.h"
  28 #include "chrome/grit/locale_settings.h"
  29 #include "chrome/grit/renderer_resources.h"
  30 #include "chrome/renderer/banners/app_banner_client.h"
  31 #include "chrome/renderer/benchmarking_extension.h"
  32 #include "chrome/renderer/chrome_render_frame_observer.h"
  33 #include "chrome/renderer/chrome_render_process_observer.h"
  34 #include "chrome/renderer/chrome_render_view_observer.h"
  35 #include "chrome/renderer/content_settings_observer.h"
  36 #include "chrome/renderer/external_extension.h"
  37 #include "chrome/renderer/loadtimes_extension_bindings.h"
  38 #include "chrome/renderer/media/chrome_key_systems.h"
  39 #include "chrome/renderer/net/net_error_helper.h"
  40 #include "chrome/renderer/net_benchmarking_extension.h"
  41 #include "chrome/renderer/page_load_histograms.h"
  42 #include "chrome/renderer/pepper/pepper_helper.h"
  43 #include "chrome/renderer/plugins/non_loadable_plugin_placeholder.h"
  44 #include "chrome/renderer/plugins/plugin_preroller.h"
  45 #include "chrome/renderer/plugins/plugin_uma.h"
  46 #include "chrome/renderer/plugins/shadow_dom_plugin_placeholder.h"
  47 #include "chrome/renderer/prerender/prerender_dispatcher.h"
  48 #include "chrome/renderer/prerender/prerender_helper.h"
  49 #include "chrome/renderer/prerender/prerenderer_client.h"
  50 #include "chrome/renderer/safe_browsing/malware_dom_details.h"
  51 #include "chrome/renderer/safe_browsing/phishing_classifier_delegate.h"
  52 #include "chrome/renderer/searchbox/search_bouncer.h"
  53 #include "chrome/renderer/searchbox/searchbox.h"
  54 #include "chrome/renderer/searchbox/searchbox_extension.h"
  55 #include "chrome/renderer/tts_dispatcher.h"
  56 #include "chrome/renderer/worker_content_settings_client_proxy.h"
  57 #include "components/autofill/content/renderer/autofill_agent.h"
  58 #include "components/autofill/content/renderer/password_autofill_agent.h"
  59 #include "components/autofill/content/renderer/password_generation_agent.h"
  60 #include "components/content_settings/core/common/content_settings_pattern.h"
  61 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
  62 #include "components/dom_distiller/core/url_constants.h"
  63 #include "components/nacl/renderer/ppb_nacl_private.h"
  64 #include "components/nacl/renderer/ppb_nacl_private_impl.h"
  65 #include "components/network_hints/renderer/prescient_networking_dispatcher.h"
  66 #include "components/password_manager/content/renderer/credential_manager_client.h"
  67 #include "components/pdf/renderer/pepper_pdf_host.h"
  68 #include "components/plugins/renderer/mobile_youtube_plugin.h"
  69 #include "components/signin/core/common/profile_management_switches.h"
  70 #include "components/version_info/version_info.h"
  71 #include "components/visitedlink/renderer/visitedlink_slave.h"
  72 #include "components/web_cache/renderer/web_cache_render_process_observer.h"
  73 #include "content/public/common/content_constants.h"
  74 #include "content/public/renderer/plugin_instance_throttler.h"
  75 #include "content/public/renderer/render_frame.h"
  76 #include "content/public/renderer/render_thread.h"
  77 #include "content/public/renderer/render_view.h"
  78 #include "content/public/renderer/render_view_visitor.h"
  79 #include "extensions/common/constants.h"
  80 #include "ipc/ipc_sync_channel.h"
  81 #include "net/base/net_errors.h"
  82 #include "ppapi/c/private/ppb_pdf.h"
  83 #include "ppapi/shared_impl/ppapi_switches.h"
  84 #include "third_party/WebKit/public/platform/WebURL.h"
  85 #include "third_party/WebKit/public/platform/WebURLError.h"
  86 #include "third_party/WebKit/public/platform/WebURLRequest.h"
  87 #include "third_party/WebKit/public/platform/WebURLResponse.h"
  88 #include "third_party/WebKit/public/web/WebCache.h"
  89 #include "third_party/WebKit/public/web/WebDataSource.h"
  90 #include "third_party/WebKit/public/web/WebDocument.h"
  91 #include "third_party/WebKit/public/web/WebElement.h"
  92 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  93 #include "third_party/WebKit/public/web/WebPluginContainer.h"
  94 #include "third_party/WebKit/public/web/WebPluginParams.h"
  95 #include "third_party/WebKit/public/web/WebPluginPlaceholder.h"
  96 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
  97 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
  98 #include "ui/base/l10n/l10n_util.h"
  99 #include "ui/base/layout.h"
 100 #include "ui/base/resource/resource_bundle.h"
 101 #include "ui/base/webui/jstemplate_builder.h"
 102 #include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
 103
 104 #if !defined(DISABLE_NACL)
 105 #include "components/nacl/common/nacl_constants.h"
 106 #include "components/nacl/renderer/nacl_helper.h"
 107 #endif
 108
 109 #if defined(ENABLE_EXTENSIONS)
 110 #include "chrome/common/extensions/chrome_extensions_client.h"
 111 #include "chrome/common/extensions/extension_process_policy.h"
 112 #include "chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.h"
 113 #include "chrome/renderer/extensions/chrome_extensions_renderer_client.h"
 114 #include "chrome/renderer/extensions/renderer_permissions_policy_delegate.h"
 115 #include "chrome/renderer/extensions/resource_request_policy.h"
 116 #include "chrome/renderer/media/cast_ipc_dispatcher.h"
 117 #include "extensions/common/extension.h"
 118 #include "extensions/common/extension_set.h"
 119 #include "extensions/common/extension_urls.h"
 120 #include "extensions/common/switches.h"
 121 #include "extensions/renderer/dispatcher.h"
 122 #include "extensions/renderer/extension_frame_helper.h"
 123 #include "extensions/renderer/extension_helper.h"
 124 #include "extensions/renderer/extensions_render_frame_observer.h"
 125 #include "extensions/renderer/guest_view/extensions_guest_view_container.h"
 126 #include "extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.h"
 127 #include "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
 128 #include "extensions/renderer/renderer_extension_registry.h"
 129 #include "extensions/renderer/script_context.h"
 130 #endif
 131
 132 #if defined(ENABLE_IPC_FUZZER)
 133 #include "chrome/common/external_ipc_dumper.h"
 134 #endif
 135
 136 #if defined(ENABLE_PLUGINS)
 137 #include "chrome/renderer/plugins/chrome_plugin_placeholder.h"
 138 #endif
 139
 140 #if defined(ENABLE_PRINTING)
 141 #include "chrome/renderer/printing/chrome_print_web_view_helper_delegate.h"
 142 #include "components/printing/renderer/print_web_view_helper.h"
 143 #endif
 144
 145 #if defined(ENABLE_PRINT_PREVIEW)
 146 #include "chrome/renderer/pepper/chrome_pdf_print_client.h"
 147 #endif
 148
 149 #if defined(ENABLE_SPELLCHECK)
 150 #include "chrome/renderer/spellchecker/spellcheck.h"
 151 #include "chrome/renderer/spellchecker/spellcheck_provider.h"
 152 #endif
 153
 154 #if defined(ENABLE_WEBRTC)
 155 #include "chrome/renderer/media/webrtc_logging_message_filter.h"
 156 #endif
 157
 158 using autofill::AutofillAgent;
 159 using autofill::PasswordAutofillAgent;
 160 using autofill::PasswordGenerationAgent;
 161 using base::ASCIIToUTF16;
 162 using base::UserMetricsAction;
 163 using content::PluginInstanceThrottler;
 164 using content::RenderFrame;
 165 using content::RenderThread;
 166 using content::WebPluginInfo;
 167 using extensions::Extension;
 168 using blink::WebCache;
 169 using blink::WebConsoleMessage;
 170 using blink::WebDataSource;
 171 using blink::WebDocument;
 172 using blink::WebLocalFrame;
 173 using blink::WebPlugin;
 174 using blink::WebPluginParams;
 175 using blink::WebSecurityOrigin;
 176 using blink::WebSecurityPolicy;
 177 using blink::WebString;
 178 using blink::WebURL;
 179 using blink::WebURLError;
 180 using blink::WebURLRequest;
 181 using blink::WebURLResponse;
 182 using blink::WebVector;
 183
 184 namespace {
 185
 186 ChromeContentRendererClient* g_current_client;
 187
 188 // Whitelist PPAPI for Android Runtime for Chromium. (See crbug.com/383937)
 189 #if defined(ENABLE_PLUGINS)
 190 const char* const kPredefinedAllowedCameraDeviceOrigins[] = {
 191   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",
 192   "4EB74897CB187C7633357C2FE832E0AD6A44883A"
 193 };
 194
 195 const char* const kPredefinedAllowedCompositorOrigins[] = {
 196   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",
 197   "4EB74897CB187C7633357C2FE832E0AD6A44883A"
 198 };
 199 #endif
 200
 201 #if defined(ENABLE_PLUGINS)
 202 void AppendParams(const std::vector<base::string16>& additional_names,
 203                   const std::vector<base::string16>& additional_values,
 204                   WebVector<WebString>* existing_names,
 205                   WebVector<WebString>* existing_values) {
 206   DCHECK(additional_names.size() == additional_values.size());
 207   DCHECK(existing_names->size() == existing_values->size());
 208
 209   size_t existing_size = existing_names->size();
 210   size_t total_size = existing_size + additional_names.size();
 211
 212   WebVector<WebString> names(total_size);
 213   WebVector<WebString> values(total_size);
 214
 215   for (size_t i = 0; i < existing_size; ++i) {
 216     names[i] = (*existing_names)[i];
 217     values[i] = (*existing_values)[i];
 218   }
 219
 220   for (size_t i = 0; i < additional_names.size(); ++i) {
 221     names[existing_size + i] = additional_names[i];
 222     values[existing_size + i] = additional_values[i];
 223   }
 224
 225   existing_names->swap(names);
 226   existing_values->swap(values);
 227 }
 228
 229 // For certain sandboxed Pepper plugins, use the JavaScript Content Settings.
 230 bool ShouldUseJavaScriptSettingForPlugin(const WebPluginInfo& plugin) {
 231   if (plugin.type != WebPluginInfo::PLUGIN_TYPE_PEPPER_IN_PROCESS &&
 232       plugin.type != WebPluginInfo::PLUGIN_TYPE_PEPPER_OUT_OF_PROCESS) {
 233     return false;
 234   }
 235
 236 #if !defined(DISABLE_NACL)
 237   // Treat Native Client invocations like JavaScript.
 238   if (plugin.name == ASCIIToUTF16(nacl::kNaClPluginName))
 239     return true;
 240 #endif
 241
 242 #if defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
 243   // Treat CDM invocations like JavaScript.
 244   if (plugin.name == ASCIIToUTF16(kWidevineCdmDisplayName)) {
 245     DCHECK(plugin.type == WebPluginInfo::PLUGIN_TYPE_PEPPER_OUT_OF_PROCESS);
 246     return true;
 247   }
 248 #endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
 249
 250   return false;
 251 }
 252 #endif  // defined(ENABLE_PLUGINS)
 253
 254 #if defined(ENABLE_SPELLCHECK)
 255 class SpellCheckReplacer : public content::RenderViewVisitor {
 256  public:
 257   explicit SpellCheckReplacer(SpellCheck* spellcheck)
 258       : spellcheck_(spellcheck) {}
 259   bool Visit(content::RenderView* render_view) override;
 260
 261  private:
 262   SpellCheck* spellcheck_;  // New shared spellcheck for all views. Weak Ptr.
 263   DISALLOW_COPY_AND_ASSIGN(SpellCheckReplacer);
 264 };
 265
 266 bool SpellCheckReplacer::Visit(content::RenderView* render_view) {
 267   SpellCheckProvider* provider = SpellCheckProvider::Get(render_view);
 268   DCHECK(provider);
 269   provider->set_spellcheck(spellcheck_);
 270   return true;
 271 }
 272 #endif
 273
 274 #if defined(ENABLE_EXTENSIONS)
 275 void IsGuestViewApiAvailableToScriptContext(
 276     bool* api_is_available,
 277     extensions::ScriptContext* context) {
 278   if (context->GetAvailability("guestViewInternal").is_available()) {
 279     *api_is_available = true;
 280   }
 281 }
 282 #endif
 283
 284 #if defined(ENABLE_PLUGINS)
 285 // Presence of the poster param within plugin object tags.
 286 // These numeric values are used in UMA logs; do not change them.
 287 enum PosterParamPresence {
 288   POSTER_PRESENCE_NO_PARAM_PPS_DISABLED = 0,
 289   POSTER_PRESENCE_NO_PARAM_PPS_ENABLED = 1,
 290   POSTER_PRESENCE_PARAM_EXISTS_PPS_DISABLED = 2,
 291   POSTER_PRESENCE_PARAM_EXISTS_PPS_ENABLED = 3,
 292   POSTER_PRESENCE_NUM_ITEMS
 293 };
 294
 295 const char kPluginPowerSaverPosterParamPresenceHistogram[] =
 296     "Plugin.PowerSaver.PosterParamPresence";
 297
 298 void RecordPosterParamPresence(PosterParamPresence presence) {
 299   UMA_HISTOGRAM_ENUMERATION(kPluginPowerSaverPosterParamPresenceHistogram,
 300                             presence, POSTER_PRESENCE_NUM_ITEMS);
 301 }
 302
 303 void TrackPosterParamPresence(const blink::WebPluginParams& params,
 304                               bool power_saver_enabled) {
 305   DCHECK_EQ(params.attributeNames.size(), params.attributeValues.size());
 306
 307   for (size_t i = 0; i < params.attributeNames.size(); ++i) {
 308     if (params.attributeNames[i].utf8() == "poster") {
 309       if (power_saver_enabled)
 310         RecordPosterParamPresence(POSTER_PRESENCE_PARAM_EXISTS_PPS_ENABLED);
 311       else
 312         RecordPosterParamPresence(POSTER_PRESENCE_PARAM_EXISTS_PPS_DISABLED);
 313
 314       return;
 315     }
 316   }
 317
 318   if (power_saver_enabled)
 319     RecordPosterParamPresence(POSTER_PRESENCE_NO_PARAM_PPS_ENABLED);
 320   else
 321     RecordPosterParamPresence(POSTER_PRESENCE_NO_PARAM_PPS_DISABLED);
 322 }
 323
 324 std::string GetPluginInstancePosterAttribute(
 325     const blink::WebPluginParams& params) {
 326   DCHECK_EQ(params.attributeNames.size(), params.attributeValues.size());
 327
 328   for (size_t i = 0; i < params.attributeNames.size(); ++i) {
 329     if (params.attributeNames[i].utf8() == "poster" &&
 330         !params.attributeValues[i].isEmpty()) {
 331       return params.attributeValues[i].utf8();
 332     }
 333   }
 334   return std::string();
 335 }
 336 #endif
 337
 338 #if defined(ENABLE_EXTENSIONS)
 339 bool IsStandaloneExtensionProcess() {
 340   return base::CommandLine::ForCurrentProcess()->HasSwitch(
 341       extensions::switches::kExtensionProcess);
 342 }
 343 #endif
 344
 345 // Defers media player loading in background pages until they're visible.
 346 // TODO(dalecurtis): Include an idle listener too.  http://crbug.com/509135
 347 class MediaLoadDeferrer : public content::RenderFrameObserver {
 348  public:
 349   MediaLoadDeferrer(content::RenderFrame* render_frame,
 350                     const base::Closure& continue_loading_cb)
 351       : content::RenderFrameObserver(render_frame),
 352         continue_loading_cb_(continue_loading_cb) {}
 353   ~MediaLoadDeferrer() override {}
 354
 355  private:
 356   // content::RenderFrameObserver implementation:
 357   void WasShown() override {
 358     continue_loading_cb_.Run();
 359     delete this;
 360   }
 361
 362   const base::Closure continue_loading_cb_;
 363
 364   DISALLOW_COPY_AND_ASSIGN(MediaLoadDeferrer);
 365 };
 366
 367 }  // namespace
 368
 369 ChromeContentRendererClient::ChromeContentRendererClient() {
 370   g_current_client = this;
 371
 372 #if defined(ENABLE_EXTENSIONS)
 373   extensions::ExtensionsClient::Set(
 374       extensions::ChromeExtensionsClient::GetInstance());
 375   extensions::ExtensionsRendererClient::Set(
 376       ChromeExtensionsRendererClient::GetInstance());
 377 #endif
 378 #if defined(ENABLE_PLUGINS)
 379   for (size_t i = 0; i < arraysize(kPredefinedAllowedCameraDeviceOrigins); ++i)
 380     allowed_camera_device_origins_.insert(
 381         kPredefinedAllowedCameraDeviceOrigins[i]);
 382   for (size_t i = 0; i < arraysize(kPredefinedAllowedCompositorOrigins); ++i)
 383     allowed_compositor_origins_.insert(kPredefinedAllowedCompositorOrigins[i]);
 384 #endif
 385 }
 386
 387 ChromeContentRendererClient::~ChromeContentRendererClient() {
 388   g_current_client = NULL;
 389 }
 390
 391 void ChromeContentRendererClient::RenderThreadStarted() {
 392   RenderThread* thread = RenderThread::Get();
 393
 394   chrome_observer_.reset(new ChromeRenderProcessObserver());
 395   web_cache_observer_.reset(new web_cache::WebCacheRenderProcessObserver());
 396
 397 #if defined(ENABLE_EXTENSIONS)
 398   extension_dispatcher_delegate_.reset(
 399       new ChromeExtensionsDispatcherDelegate());
 400   // ChromeRenderViewTest::SetUp() creates its own ExtensionDispatcher and
 401   // injects it using SetExtensionDispatcher(). Don't overwrite it.
 402   if (!extension_dispatcher_) {
 403     extension_dispatcher_.reset(
 404         new extensions::Dispatcher(extension_dispatcher_delegate_.get()));
 405   }
 406   permissions_policy_delegate_.reset(
 407       new extensions::RendererPermissionsPolicyDelegate(
 408           extension_dispatcher_.get()));
 409   guest_view_container_dispatcher_.reset(
 410       new extensions::ExtensionsGuestViewContainerDispatcher());
 411 #endif
 412
 413   prescient_networking_dispatcher_.reset(
 414       new network_hints::PrescientNetworkingDispatcher());
 415 #if defined(ENABLE_SPELLCHECK)
 416   // ChromeRenderViewTest::SetUp() creates a Spellcheck and injects it using
 417   // SetSpellcheck(). Don't overwrite it.
 418   if (!spellcheck_) {
 419     spellcheck_.reset(new SpellCheck());
 420     thread->AddObserver(spellcheck_.get());
 421   }
 422 #endif
 423   visited_link_slave_.reset(new visitedlink::VisitedLinkSlave());
 424 #if defined(FULL_SAFE_BROWSING)
 425   phishing_classifier_.reset(safe_browsing::PhishingClassifierFilter::Create());
 426 #endif
 427   prerender_dispatcher_.reset(new prerender::PrerenderDispatcher());
 428 #if defined(ENABLE_WEBRTC)
 429   webrtc_logging_message_filter_ = new WebRtcLoggingMessageFilter(
 430       RenderThread::Get()->GetIOMessageLoopProxy());
 431 #endif
 432
 433   thread->AddObserver(chrome_observer_.get());
 434   thread->AddObserver(web_cache_observer_.get());
 435 #if defined(ENABLE_EXTENSIONS)
 436   thread->AddObserver(extension_dispatcher_.get());
 437   thread->AddObserver(guest_view_container_dispatcher_.get());
 438 #endif
 439 #if defined(FULL_SAFE_BROWSING)
 440   thread->AddObserver(phishing_classifier_.get());
 441 #endif
 442   thread->AddObserver(visited_link_slave_.get());
 443   thread->AddObserver(prerender_dispatcher_.get());
 444   thread->AddObserver(SearchBouncer::GetInstance());
 445
 446 #if defined(ENABLE_WEBRTC)
 447   thread->AddFilter(webrtc_logging_message_filter_.get());
 448 #endif
 449 #if defined(ENABLE_EXTENSIONS)
 450   thread->AddFilter(new CastIPCDispatcher(
 451       RenderThread::Get()->GetIOMessageLoopProxy()));
 452 #endif
 453
 454   thread->RegisterExtension(extensions_v8::ExternalExtension::Get());
 455   thread->RegisterExtension(extensions_v8::LoadTimesExtension::Get());
 456
 457   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 458   if (command_line->HasSwitch(switches::kEnableBenchmarking))
 459     thread->RegisterExtension(extensions_v8::BenchmarkingExtension::Get());
 460   if (command_line->HasSwitch(switches::kEnableNetBenchmarking))
 461     thread->RegisterExtension(extensions_v8::NetBenchmarkingExtension::Get());
 462   if (command_line->HasSwitch(switches::kInstantProcess))
 463     thread->RegisterExtension(extensions_v8::SearchBoxExtension::Get());
 464
 465   // chrome-search: and chrome-distiller: pages  should not be accessible by
 466   // normal content, and should also be unable to script anything but themselves
 467   // (to help limit the damage that a corrupt page could cause).
 468   WebString chrome_search_scheme(ASCIIToUTF16(chrome::kChromeSearchScheme));
 469
 470   // The Instant process can only display the content but not read it.  Other
 471   // processes can't display it or read it.
 472   if (!command_line->HasSwitch(switches::kInstantProcess))
 473     WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_search_scheme);
 474
 475   WebString dom_distiller_scheme(
 476       ASCIIToUTF16(dom_distiller::kDomDistillerScheme));
 477   // TODO(nyquist): Add test to ensure this happens when the flag is set.
 478   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(dom_distiller_scheme);
 479
 480 #if defined(OS_CHROMEOS)
 481   WebString external_file_scheme(ASCIIToUTF16(content::kExternalFileScheme));
 482   WebSecurityPolicy::registerURLSchemeAsLocal(external_file_scheme);
 483 #endif
 484
 485 #if defined(ENABLE_IPC_FUZZER)
 486   if (command_line->HasSwitch(switches::kIpcDumpDirectory)) {
 487     base::FilePath dump_directory =
 488         command_line->GetSwitchValuePath(switches::kIpcDumpDirectory);
 489     IPC::ChannelProxy::OutgoingMessageFilter* filter =
 490         LoadExternalIPCDumper(dump_directory);
 491     thread->GetChannel()->set_outgoing_message_filter(filter);
 492   }
 493 #endif
 494
 495   // chrome-search: pages should not be accessible by bookmarklets
 496   // or javascript: URLs typed in the omnibox.
 497   WebSecurityPolicy::registerURLSchemeAsNotAllowingJavascriptURLs(
 498       chrome_search_scheme);
 499
 500   // chrome-search: resources shouldn't trigger insecure content warnings. Note
 501   // that chrome-extension: and chrome-extension-resource: schemes are taken
 502   // care of in extensions::Dispatcher.
 503   WebSecurityPolicy::registerURLSchemeAsSecure(chrome_search_scheme);
 504
 505 #if defined(ENABLE_PRINT_PREVIEW)
 506   pdf_print_client_.reset(new ChromePDFPrintClient());
 507   pdf::PepperPDFHost::SetPrintClient(pdf_print_client_.get());
 508 #endif
 509
 510   std::set<GURL> origins;
 511   GetSecureOriginWhitelist(&origins);
 512   for (const GURL& origin : origins) {
 513     WebSecurityPolicy::addOriginTrustworthyWhiteList(
 514         WebSecurityOrigin::create(origin));
 515   }
 516 }
 517
 518 void ChromeContentRendererClient::RenderFrameCreated(
 519     content::RenderFrame* render_frame) {
 520   new ChromeRenderFrameObserver(render_frame);
 521
 522   bool should_whitelist_for_content_settings =
 523       base::CommandLine::ForCurrentProcess()->HasSwitch(
 524           switches::kInstantProcess);
 525   extensions::Dispatcher* ext_dispatcher = NULL;
 526 #if defined(ENABLE_EXTENSIONS)
 527   ext_dispatcher = extension_dispatcher_.get();
 528 #endif
 529   ContentSettingsObserver* content_settings = new ContentSettingsObserver(
 530       render_frame, ext_dispatcher, should_whitelist_for_content_settings);
 531   if (chrome_observer_.get()) {
 532     content_settings->SetContentSettingRules(
 533         chrome_observer_->content_setting_rules());
 534   }
 535
 536 #if defined(ENABLE_EXTENSIONS)
 537   new extensions::ExtensionsRenderFrameObserver(render_frame);
 538   new extensions::ExtensionFrameHelper(render_frame, ext_dispatcher);
 539   ext_dispatcher->OnRenderFrameCreated(render_frame);
 540 #endif
 541
 542 #if defined(ENABLE_PLUGINS)
 543   new PepperHelper(render_frame);
 544 #endif
 545
 546 #if !defined(DISABLE_NACL)
 547   new nacl::NaClHelper(render_frame);
 548 #endif
 549
 550   // TODO(jam): when the frame tree moves into content and parent() works at
 551   // RenderFrame construction, simplify this by just checking parent().
 552   if (render_frame->GetRenderView()->GetMainRenderFrame() != render_frame) {
 553     // Avoid any race conditions from having the browser tell subframes that
 554     // they're prerendering.
 555     if (prerender::PrerenderHelper::IsPrerendering(
 556             render_frame->GetRenderView()->GetMainRenderFrame())) {
 557       new prerender::PrerenderHelper(render_frame);
 558     }
 559   }
 560
 561   if (render_frame->GetRenderView()->GetMainRenderFrame() == render_frame) {
 562     // Only attach NetErrorHelper to the main frame, since only the main frame
 563     // should get error pages.
 564     new NetErrorHelper(render_frame);
 565   }
 566
 567   PasswordAutofillAgent* password_autofill_agent =
 568       new PasswordAutofillAgent(render_frame);
 569   PasswordGenerationAgent* password_generation_agent =
 570       new PasswordGenerationAgent(render_frame, password_autofill_agent);
 571   new AutofillAgent(render_frame, password_autofill_agent,
 572                     password_generation_agent);
 573 }
 574
 575 void ChromeContentRendererClient::RenderViewCreated(
 576     content::RenderView* render_view) {
 577
 578 #if defined(ENABLE_EXTENSIONS)
 579   new extensions::ExtensionHelper(render_view, extension_dispatcher_.get());
 580 #endif
 581   new PageLoadHistograms(render_view);
 582 #if defined(ENABLE_PRINTING)
 583   new printing::PrintWebViewHelper(
 584       render_view,
 585       scoped_ptr<printing::PrintWebViewHelper::Delegate>(
 586           new ChromePrintWebViewHelperDelegate()));
 587 #endif
 588 #if defined(ENABLE_SPELLCHECK)
 589   new SpellCheckProvider(render_view, spellcheck_.get());
 590 #endif
 591   new prerender::PrerendererClient(render_view);
 592 #if defined(FULL_SAFE_BROWSING)
 593   safe_browsing::MalwareDOMDetails::Create(render_view);
 594 #endif
 595
 596   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 597   if (command_line->HasSwitch(switches::kInstantProcess))
 598     new SearchBox(render_view);
 599
 600   new ChromeRenderViewObserver(render_view, web_cache_observer_.get());
 601
 602   new password_manager::CredentialManagerClient(render_view);
 603 }
 604
 605
 606 SkBitmap* ChromeContentRendererClient::GetSadPluginBitmap() {
 607   return const_cast<SkBitmap*>(ResourceBundle::GetSharedInstance().
 608       GetImageNamed(IDR_SAD_PLUGIN).ToSkBitmap());
 609 }
 610
 611 SkBitmap* ChromeContentRendererClient::GetSadWebViewBitmap() {
 612   return const_cast<SkBitmap*>(ResourceBundle::GetSharedInstance().
 613       GetImageNamed(IDR_SAD_WEBVIEW).ToSkBitmap());
 614 }
 615
 616 #if defined(ENABLE_EXTENSIONS)
 617 const Extension* ChromeContentRendererClient::GetExtensionByOrigin(
 618     const WebSecurityOrigin& origin) const {
 619   if (!base::EqualsASCII(base::StringPiece16(origin.protocol()),
 620                          extensions::kExtensionScheme))
 621     return NULL;
 622
 623   const std::string extension_id = origin.host().utf8().data();
 624   return extensions::RendererExtensionRegistry::Get()->GetByID(extension_id);
 625 }
 626 #endif
 627
 628 scoped_ptr<blink::WebPluginPlaceholder>
 629 ChromeContentRendererClient::CreatePluginPlaceholder(
 630     content::RenderFrame* render_frame,
 631     blink::WebLocalFrame* frame,
 632     const blink::WebPluginParams& orig_params) {
 633   return CreateShadowDOMPlaceholderForPluginInfo(
 634       render_frame, frame, orig_params);
 635 }
 636
 637 bool ChromeContentRendererClient::OverrideCreatePlugin(
 638     content::RenderFrame* render_frame,
 639     blink::WebLocalFrame* frame,
 640     const WebPluginParams& params,
 641     WebPlugin** plugin) {
 642   std::string orig_mime_type = params.mimeType.utf8();
 643 #if defined(ENABLE_EXTENSIONS)
 644   if (orig_mime_type == content::kBrowserPluginMimeType) {
 645     bool guest_view_api_available = false;
 646     extension_dispatcher_->script_context_set().ForEach(
 647         render_frame, base::Bind(&IsGuestViewApiAvailableToScriptContext,
 648                                  &guest_view_api_available));
 649     if (guest_view_api_available)
 650       return false;
 651   }
 652 #endif
 653
 654   GURL url(params.url);
 655 #if defined(ENABLE_PLUGINS)
 656   ChromeViewHostMsg_GetPluginInfo_Output output;
 657   render_frame->Send(new ChromeViewHostMsg_GetPluginInfo(
 658       render_frame->GetRoutingID(), url, frame->top()->document().url(),
 659       orig_mime_type, &output));
 660   *plugin = CreatePlugin(render_frame, frame, params, output);
 661 #else  // !defined(ENABLE_PLUGINS)
 662
 663 #if defined(OS_ANDROID)
 664   if (plugins::MobileYouTubePlugin::IsYouTubeURL(url, orig_mime_type)) {
 665     base::StringPiece template_html(
 666         ResourceBundle::GetSharedInstance().GetRawDataResource(
 667             IDR_MOBILE_YOUTUBE_PLUGIN_HTML));
 668     *plugin = (new plugins::MobileYouTubePlugin(render_frame, frame, params,
 669                                                 template_html))->plugin();
 670     return true;
 671   }
 672 #endif  // defined(OS_ANDROID)
 673
 674   PluginUMAReporter::GetInstance()->ReportPluginMissing(orig_mime_type, url);
 675   *plugin = NonLoadablePluginPlaceholder::CreateNotSupportedPlugin(
 676                 render_frame, frame, params)->plugin();
 677
 678 #endif  // defined(ENABLE_PLUGINS)
 679   return true;
 680 }
 681
 682 WebPlugin* ChromeContentRendererClient::CreatePluginReplacement(
 683     content::RenderFrame* render_frame,
 684     const base::FilePath& plugin_path) {
 685   return NonLoadablePluginPlaceholder::CreateErrorPlugin(render_frame,
 686                                                          plugin_path)->plugin();
 687 }
 688
 689 void ChromeContentRendererClient::DeferMediaLoad(
 690     content::RenderFrame* render_frame,
 691     bool has_played_media_before,
 692     const base::Closure& closure) {
 693   // Don't allow autoplay/autoload of media resources in a RenderFrame that is
 694   // hidden and has never played any media before.  We want to allow future
 695   // loads even when hidden to allow playlist-like functionality.
 696   //
 697   // NOTE: This is also used to defer media loading for prerender.
 698   //
 699   // TODO(dalecurtis): Include an idle check too.  http://crbug.com/509135
 700   if (render_frame->IsHidden() && !has_played_media_before) {
 701     // Lifetime is tied to |render_frame| via content::RenderFrameObserver.
 702     new MediaLoadDeferrer(render_frame, closure);
 703     return;
 704   }
 705
 706   closure.Run();
 707 }
 708
 709 #if defined(ENABLE_PLUGINS)
 710 WebPlugin* ChromeContentRendererClient::CreatePlugin(
 711     content::RenderFrame* render_frame,
 712     blink::WebLocalFrame* frame,
 713     const WebPluginParams& original_params,
 714     const ChromeViewHostMsg_GetPluginInfo_Output& output) {
 715   const WebPluginInfo& info = output.plugin;
 716   const std::string& actual_mime_type = output.actual_mime_type;
 717   const base::string16& group_name = output.group_name;
 718   const std::string& identifier = output.group_identifier;
 719   ChromeViewHostMsg_GetPluginInfo_Status status = output.status;
 720   GURL url(original_params.url);
 721   std::string orig_mime_type = original_params.mimeType.utf8();
 722   ChromePluginPlaceholder* placeholder = NULL;
 723
 724   // If the browser plugin is to be enabled, this should be handled by the
 725   // renderer, so the code won't reach here due to the early exit in
 726   // OverrideCreatePlugin.
 727   if (status == ChromeViewHostMsg_GetPluginInfo_Status::kNotFound ||
 728       orig_mime_type == content::kBrowserPluginMimeType) {
 729     PluginUMAReporter::GetInstance()->ReportPluginMissing(orig_mime_type, url);
 730     placeholder = ChromePluginPlaceholder::CreateLoadableMissingPlugin(
 731         render_frame, frame, original_params);
 732   } else {
 733     // TODO(bauerb): This should be in content/.
 734     WebPluginParams params(original_params);
 735     for (size_t i = 0; i < info.mime_types.size(); ++i) {
 736       if (info.mime_types[i].mime_type == actual_mime_type) {
 737         AppendParams(info.mime_types[i].additional_param_names,
 738                      info.mime_types[i].additional_param_values,
 739                      &params.attributeNames, &params.attributeValues);
 740         break;
 741       }
 742     }
 743     if (params.mimeType.isNull() && (actual_mime_type.size() > 0)) {
 744       // Webkit might say that mime type is null while we already know the
 745       // actual mime type via ChromeViewHostMsg_GetPluginInfo. In that case
 746       // we should use what we know since WebpluginDelegateProxy does some
 747       // specific initializations based on this information.
 748       params.mimeType = WebString::fromUTF8(actual_mime_type.c_str());
 749     }
 750
 751     ContentSettingsObserver* observer =
 752         ContentSettingsObserver::Get(render_frame);
 753
 754     const ContentSettingsType content_type =
 755         ShouldUseJavaScriptSettingForPlugin(info)
 756             ? CONTENT_SETTINGS_TYPE_JAVASCRIPT
 757             : CONTENT_SETTINGS_TYPE_PLUGINS;
 758
 759     if ((status == ChromeViewHostMsg_GetPluginInfo_Status::kUnauthorized ||
 760          status == ChromeViewHostMsg_GetPluginInfo_Status::kBlocked) &&
 761         observer->IsPluginTemporarilyAllowed(identifier)) {
 762       status = ChromeViewHostMsg_GetPluginInfo_Status::kAllowed;
 763     }
 764
 765 #if defined(OS_WIN)
 766     // In Windows we need to check if we can load NPAPI plugins.
 767     // For example, if the render view is in the Ash desktop, we should not.
 768     // If user is on ALLOW or DETECT setting, loading needs to be blocked here.
 769     if ((status == ChromeViewHostMsg_GetPluginInfo_Status::kAllowed ||
 770          status ==
 771              ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent) &&
 772         info.type == content::WebPluginInfo::PLUGIN_TYPE_NPAPI) {
 773         if (observer->AreNPAPIPluginsBlocked())
 774           status = ChromeViewHostMsg_GetPluginInfo_Status::kNPAPINotSupported;
 775     }
 776 #endif
 777
 778     auto create_blocked_plugin =
 779         [&render_frame, &frame, &params, &info, &identifier, &group_name](
 780             int template_id, const base::string16& message) {
 781           return ChromePluginPlaceholder::CreateBlockedPlugin(
 782               render_frame, frame, params, info, identifier, group_name,
 783               template_id, message, PlaceholderPosterInfo());
 784         };
 785     switch (status) {
 786       case ChromeViewHostMsg_GetPluginInfo_Status::kNotFound: {
 787         NOTREACHED();
 788         break;
 789       }
 790       case ChromeViewHostMsg_GetPluginInfo_Status::kAllowed:
 791       case ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent: {
 792 #if !defined(DISABLE_NACL) && defined(ENABLE_EXTENSIONS)
 793         const bool is_nacl_plugin =
 794             info.name == ASCIIToUTF16(nacl::kNaClPluginName);
 795         const bool is_nacl_mime_type =
 796             actual_mime_type == nacl::kNaClPluginMimeType;
 797         const bool is_pnacl_mime_type =
 798             actual_mime_type == nacl::kPnaclPluginMimeType;
 799         if (is_nacl_plugin || is_nacl_mime_type || is_pnacl_mime_type) {
 800           bool is_nacl_unrestricted = false;
 801           if (is_nacl_mime_type) {
 802             is_nacl_unrestricted =
 803                 base::CommandLine::ForCurrentProcess()->HasSwitch(
 804                     switches::kEnableNaCl);
 805           } else if (is_pnacl_mime_type) {
 806             is_nacl_unrestricted = true;
 807           }
 808           GURL manifest_url;
 809           GURL app_url;
 810           if (is_nacl_mime_type || is_pnacl_mime_type) {
 811             // Normal NaCl/PNaCl embed. The app URL is the page URL.
 812             manifest_url = url;
 813             app_url = frame->top()->document().url();
 814           } else {
 815             // NaCl is being invoked as a content handler. Look up the NaCl
 816             // module using the MIME type. The app URL is the manifest URL.
 817             manifest_url = GetNaClContentHandlerURL(actual_mime_type, info);
 818             app_url = manifest_url;
 819           }
 820           const Extension* extension =
 821               extensions::RendererExtensionRegistry::Get()
 822                   ->GetExtensionOrAppByURL(manifest_url);
 823           if (!IsNaClAllowed(manifest_url,
 824                              app_url,
 825                              is_nacl_unrestricted,
 826                              extension,
 827                              &params)) {
 828             WebString error_message;
 829             if (is_nacl_mime_type) {
 830               error_message =
 831                   "Only unpacked extensions and apps installed from the Chrome "
 832                   "Web Store can load NaCl modules without enabling Native "
 833                   "Client in about:flags.";
 834             } else if (is_pnacl_mime_type) {
 835               error_message =
 836                   "Portable Native Client must not be disabled in about:flags.";
 837             }
 838             frame->addMessageToConsole(
 839                 WebConsoleMessage(WebConsoleMessage::LevelError,
 840                                   error_message));
 841             placeholder = create_blocked_plugin(
 842                 IDR_BLOCKED_PLUGIN_HTML,
 843 #if defined(OS_CHROMEOS)
 844                 l10n_util::GetStringUTF16(IDS_NACL_PLUGIN_BLOCKED));
 845 #else
 846                 l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name));
 847 #endif
 848             break;
 849           }
 850         }
 851 #endif  // !defined(DISABLE_NACL) && defined(ENABLE_EXTENSIONS)
 852
 853         // Delay loading plugins if prerendering.
 854         // TODO(mmenke):  In the case of prerendering, feed into
 855         //                ChromeContentRendererClient::CreatePlugin instead, to
 856         //                reduce the chance of future regressions.
 857         bool is_prerendering =
 858             prerender::PrerenderHelper::IsPrerendering(render_frame);
 859         bool power_saver_enabled =
 860             status ==
 861                 ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent;
 862         bool blocked_for_background_tab =
 863             render_frame->IsHidden() && power_saver_enabled;
 864
 865         if (info.name == ASCIIToUTF16(content::kFlashPluginName))
 866           TrackPosterParamPresence(params, power_saver_enabled);
 867
 868         PlaceholderPosterInfo poster_info;
 869         if (power_saver_enabled) {
 870           poster_info.poster_attribute =
 871               GetPluginInstancePosterAttribute(params);
 872           poster_info.base_url = frame->document().url();
 873         }
 874
 875         if (blocked_for_background_tab || is_prerendering ||
 876             !poster_info.poster_attribute.empty()) {
 877           placeholder = ChromePluginPlaceholder::CreateBlockedPlugin(
 878               render_frame, frame, params, info, identifier, group_name,
 879               poster_info.poster_attribute.empty() ? IDR_BLOCKED_PLUGIN_HTML
 880                                                    : IDR_PLUGIN_POSTER_HTML,
 881               l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
 882               poster_info);
 883           placeholder->set_blocked_for_background_tab(
 884               blocked_for_background_tab);
 885           placeholder->set_blocked_for_prerendering(is_prerendering);
 886           placeholder->set_power_saver_enabled(power_saver_enabled);
 887           placeholder->AllowLoading();
 888           break;
 889         }
 890
 891         scoped_ptr<content::PluginInstanceThrottler> throttler;
 892         if (power_saver_enabled) {
 893           throttler = PluginInstanceThrottler::Create();
 894           // PluginPreroller manages its own lifetime.
 895           new PluginPreroller(
 896               render_frame, frame, params, info, identifier, group_name,
 897               l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
 898               throttler.get());
 899         }
 900
 901         return render_frame->CreatePlugin(frame, info, params,
 902                                           throttler.Pass());
 903       }
 904       case ChromeViewHostMsg_GetPluginInfo_Status::kNPAPINotSupported: {
 905         RenderThread::Get()->RecordAction(
 906             UserMetricsAction("Plugin_NPAPINotSupported"));
 907         placeholder = create_blocked_plugin(
 908             IDR_BLOCKED_PLUGIN_HTML,
 909             l10n_util::GetStringUTF16(IDS_PLUGIN_NOT_SUPPORTED_METRO));
 910         render_frame->Send(new ChromeViewHostMsg_NPAPINotSupported(
 911             render_frame->GetRoutingID(), identifier));
 912         break;
 913       }
 914       case ChromeViewHostMsg_GetPluginInfo_Status::kDisabled: {
 915         PluginUMAReporter::GetInstance()->ReportPluginDisabled(orig_mime_type,
 916                                                                url);
 917         placeholder = create_blocked_plugin(
 918             IDR_DISABLED_PLUGIN_HTML,
 919             l10n_util::GetStringFUTF16(IDS_PLUGIN_DISABLED, group_name));
 920         break;
 921       }
 922       case ChromeViewHostMsg_GetPluginInfo_Status::kOutdatedBlocked: {
 923 #if defined(ENABLE_PLUGIN_INSTALLATION)
 924         placeholder = create_blocked_plugin(
 925             IDR_BLOCKED_PLUGIN_HTML,
 926             l10n_util::GetStringFUTF16(IDS_PLUGIN_OUTDATED, group_name));
 927         placeholder->AllowLoading();
 928         render_frame->Send(new ChromeViewHostMsg_BlockedOutdatedPlugin(
 929             render_frame->GetRoutingID(), placeholder->CreateRoutingId(),
 930             identifier));
 931 #else
 932         NOTREACHED();
 933 #endif
 934         break;
 935       }
 936       case ChromeViewHostMsg_GetPluginInfo_Status::kOutdatedDisallowed: {
 937         placeholder = create_blocked_plugin(
 938             IDR_BLOCKED_PLUGIN_HTML,
 939             l10n_util::GetStringFUTF16(IDS_PLUGIN_OUTDATED, group_name));
 940         break;
 941       }
 942       case ChromeViewHostMsg_GetPluginInfo_Status::kUnauthorized: {
 943         placeholder = create_blocked_plugin(
 944             IDR_BLOCKED_PLUGIN_HTML,
 945             l10n_util::GetStringFUTF16(IDS_PLUGIN_NOT_AUTHORIZED, group_name));
 946         placeholder->AllowLoading();
 947         if (info.type != content::WebPluginInfo::PLUGIN_TYPE_NPAPI) {
 948           render_frame->Send(new ChromeViewHostMsg_BlockedUnauthorizedPlugin(
 949               render_frame->GetRoutingID(),
 950               group_name,
 951               identifier));
 952         }
 953         observer->DidBlockContentType(content_type, group_name);
 954         break;
 955       }
 956       case ChromeViewHostMsg_GetPluginInfo_Status::kBlocked: {
 957         placeholder = create_blocked_plugin(
 958             IDR_BLOCKED_PLUGIN_HTML,
 959             l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name));
 960         placeholder->AllowLoading();
 961         RenderThread::Get()->RecordAction(UserMetricsAction("Plugin_Blocked"));
 962         observer->DidBlockContentType(content_type, group_name);
 963         break;
 964       }
 965       case ChromeViewHostMsg_GetPluginInfo_Status::kBlockedByPolicy: {
 966         placeholder = create_blocked_plugin(
 967             IDR_BLOCKED_PLUGIN_HTML,
 968             l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED_BY_POLICY,
 969                                        group_name));
 970         RenderThread::Get()->RecordAction(
 971             UserMetricsAction("Plugin_BlockedByPolicy"));
 972         observer->DidBlockContentType(content_type, group_name);
 973         break;
 974       }
 975     }
 976   }
 977   placeholder->SetStatus(status);
 978   return placeholder->plugin();
 979 }
 980 #endif  // defined(ENABLE_PLUGINS)
 981
 982 // For NaCl content handling plugins, the NaCl manifest is stored in an
 983 // additonal 'nacl' param associated with the MIME type.
 984 //  static
 985 GURL ChromeContentRendererClient::GetNaClContentHandlerURL(
 986     const std::string& actual_mime_type,
 987     const content::WebPluginInfo& plugin) {
 988   // Look for the manifest URL among the MIME type's additonal parameters.
 989   const char kNaClPluginManifestAttribute[] = "nacl";
 990   base::string16 nacl_attr = ASCIIToUTF16(kNaClPluginManifestAttribute);
 991   for (size_t i = 0; i < plugin.mime_types.size(); ++i) {
 992     if (plugin.mime_types[i].mime_type == actual_mime_type) {
 993       const content::WebPluginMimeType& content_type = plugin.mime_types[i];
 994       for (size_t i = 0; i < content_type.additional_param_names.size(); ++i) {
 995         if (content_type.additional_param_names[i] == nacl_attr)
 996           return GURL(content_type.additional_param_values[i]);
 997       }
 998       break;
 999     }
1000   }
1001   return GURL();
1002 }
1003
1004 #if !defined(DISABLE_NACL)
1005 //  static
1006 bool ChromeContentRendererClient::IsNaClAllowed(
1007     const GURL& manifest_url,
1008     const GURL& app_url,
1009     bool is_nacl_unrestricted,
1010     const Extension* extension,
1011     WebPluginParams* params) {
1012   // Temporarily allow these whitelisted apps and WebUIs to use NaCl.
1013   std::string app_url_host = app_url.host();
1014   std::string manifest_url_path = manifest_url.path();
1015
1016   bool is_whitelisted_web_ui =
1017       app_url.spec() == chrome::kChromeUIAppListStartPageURL;
1018
1019   bool is_photo_app =
1020       // Whitelisted apps must be served over https.
1021       app_url.SchemeIsCryptographic() && manifest_url.SchemeIsCryptographic() &&
1022       (base::EndsWith(app_url_host, "plus.google.com",
1023                       base::CompareCase::INSENSITIVE_ASCII) ||
1024        base::EndsWith(app_url_host, "plus.sandbox.google.com",
1025                       base::CompareCase::INSENSITIVE_ASCII)) &&
1026       manifest_url.DomainIs("ssl.gstatic.com") &&
1027       (manifest_url_path.find("s2/oz/nacl/") == 1 ||
1028        manifest_url_path.find("photos/nacl/") == 1);
1029
1030   std::string manifest_fs_host;
1031   if (manifest_url.SchemeIsFileSystem() && manifest_url.inner_url()) {
1032     manifest_fs_host = manifest_url.inner_url()->host();
1033   }
1034   bool is_hangouts_app =
1035       // Whitelisted apps must be served over secure scheme.
1036       app_url.SchemeIsCryptographic() && manifest_url.SchemeIsFileSystem() &&
1037       manifest_url.inner_url()->SchemeIsCryptographic() &&
1038       (base::EndsWith(app_url_host, "talkgadget.google.com",
1039                       base::CompareCase::INSENSITIVE_ASCII) ||
1040        base::EndsWith(app_url_host, "plus.google.com",
1041                       base::CompareCase::INSENSITIVE_ASCII) ||
1042        base::EndsWith(app_url_host, "plus.sandbox.google.com",
1043                       base::CompareCase::INSENSITIVE_ASCII)) &&
1044       // The manifest must be loaded from the host's FileSystem.
1045       (manifest_fs_host == app_url_host);
1046
1047   bool is_whitelisted_app = is_photo_app || is_hangouts_app;
1048
1049   bool is_invoked_by_webstore_installed_extension = false;
1050   bool is_extension_unrestricted = false;
1051   bool is_extension_force_installed = false;
1052 #if defined(ENABLE_EXTENSIONS)
1053   bool is_extension_from_webstore = extension && extension->from_webstore();
1054
1055   bool is_invoked_by_extension = app_url.SchemeIs("chrome-extension");
1056   bool is_invoked_by_hosted_app = extension &&
1057       extension->is_hosted_app() &&
1058       extension->web_extent().MatchesURL(app_url);
1059
1060   is_invoked_by_webstore_installed_extension = is_extension_from_webstore &&
1061       (is_invoked_by_extension || is_invoked_by_hosted_app);
1062
1063   // Allow built-in extensions and developer mode extensions.
1064   is_extension_unrestricted = extension &&
1065        (extensions::Manifest::IsUnpackedLocation(extension->location()) ||
1066         extensions::Manifest::IsComponentLocation(extension->location()));
1067   // Allow extensions force installed by admin policy.
1068   is_extension_force_installed = extension &&
1069        extensions::Manifest::IsPolicyLocation(extension->location());
1070 #endif  // defined(ENABLE_EXTENSIONS)
1071
1072   // Allow NaCl under any of the following circumstances:
1073   //  1) An app or URL is explictly whitelisted above.
1074   //  2) An extension is loaded unpacked or built-in (component) to Chrome.
1075   //  3) An extension is force installed by policy.
1076   //  4) An extension is installed from the webstore, and invoked in that
1077   //     context (hosted app URL or chrome-extension:// scheme).
1078   //  5) --enable-nacl is set.
1079   bool is_nacl_allowed_by_location =
1080       is_whitelisted_web_ui ||
1081       is_whitelisted_app ||
1082       is_extension_unrestricted ||
1083       is_extension_force_installed ||
1084       is_invoked_by_webstore_installed_extension;
1085   bool is_nacl_allowed = is_nacl_allowed_by_location || is_nacl_unrestricted;
1086   if (is_nacl_allowed) {
1087     // Make sure that PPAPI 'dev' interfaces are only available for unpacked
1088     // and component extensions.  Also allow dev interfaces when --enable-nacl
1089     // is set, but do not allow --enable-nacl to provide dev interfaces to
1090     // webstore installed and other normally allowed URLs.
1091     WebString dev_attribute = WebString::fromUTF8("@dev");
1092     if (is_extension_unrestricted ||
1093         (is_nacl_unrestricted && !is_nacl_allowed_by_location)) {
1094       // Add the special '@dev' attribute.
1095       std::vector<base::string16> param_names;
1096       std::vector<base::string16> param_values;
1097       param_names.push_back(dev_attribute);
1098       param_values.push_back(WebString());
1099       AppendParams(
1100           param_names,
1101           param_values,
1102           &params->attributeNames,
1103           &params->attributeValues);
1104     } else {
1105       // If the params somehow contain '@dev', remove it.
1106       size_t attribute_count = params->attributeNames.size();
1107       for (size_t i = 0; i < attribute_count; ++i) {
1108         if (params->attributeNames[i].equals(dev_attribute))
1109           params->attributeNames[i] = WebString();
1110       }
1111     }
1112   }
1113   return is_nacl_allowed;
1114 }
1115 #endif  // defined(DISABLE_NACL)
1116
1117 bool ChromeContentRendererClient::HasErrorPage(int http_status_code,
1118                                                std::string* error_domain) {
1119   // Use an internal error page, if we have one for the status code.
1120   if (!LocalizedError::HasStrings(LocalizedError::kHttpErrorDomain,
1121                                   http_status_code)) {
1122     return false;
1123   }
1124
1125   *error_domain = LocalizedError::kHttpErrorDomain;
1126   return true;
1127 }
1128
1129 bool ChromeContentRendererClient::ShouldSuppressErrorPage(
1130     content::RenderFrame* render_frame,
1131     const GURL& url) {
1132   // Unit tests for ChromeContentRendererClient pass a NULL RenderFrame here.
1133   // Unfortunately it's very difficult to construct a mock RenderView, so skip
1134   // this functionality in this case.
1135   if (render_frame) {
1136     content::RenderView* render_view = render_frame->GetRenderView();
1137     content::RenderFrame* main_render_frame = render_view->GetMainRenderFrame();
1138     blink::WebFrame* web_frame = render_frame->GetWebFrame();
1139     NetErrorHelper* net_error_helper = NetErrorHelper::Get(main_render_frame);
1140     if (net_error_helper->ShouldSuppressErrorPage(web_frame, url))
1141       return true;
1142   }
1143   // Do not flash an error page if the Instant new tab page fails to load.
1144   return SearchBouncer::GetInstance()->IsNewTabPage(url);
1145 }
1146
1147 void ChromeContentRendererClient::GetNavigationErrorStrings(
1148     content::RenderView* render_view,
1149     blink::WebFrame* frame,
1150     const blink::WebURLRequest& failed_request,
1151     const blink::WebURLError& error,
1152     std::string* error_html,
1153     base::string16* error_description) {
1154   const GURL failed_url = error.unreachableURL;
1155
1156   bool is_post = base::EqualsASCII(
1157       base::StringPiece16(failed_request.httpMethod()), "POST");
1158
1159   if (error_html) {
1160     // TODO(ellyjones): change GetNavigationErrorStrings to take a RenderFrame
1161     // instead of a RenderView, then pass that in.
1162     // This is safe for now because we only install the NetErrorHelper on the
1163     // main render frame anyway; see the TODO(ellyjones) in
1164     // RenderFrameCreated.
1165     content::RenderFrame* main_render_frame = render_view->GetMainRenderFrame();
1166     NetErrorHelper* helper = NetErrorHelper::Get(main_render_frame);
1167     helper->GetErrorHTML(frame, error, is_post, error_html);
1168   }
1169
1170   if (error_description)
1171     *error_description = LocalizedError::GetErrorDetails(error, is_post);
1172 }
1173
1174 bool ChromeContentRendererClient::RunIdleHandlerWhenWidgetsHidden() {
1175 #if defined(ENABLE_EXTENSIONS)
1176   return !IsStandaloneExtensionProcess();
1177 #else
1178   return true;
1179 #endif
1180 }
1181
1182 bool ChromeContentRendererClient::AllowPopup() {
1183 #if defined(ENABLE_EXTENSIONS)
1184   extensions::ScriptContext* current_context =
1185       extension_dispatcher_->script_context_set().GetCurrent();
1186   if (!current_context || !current_context->extension())
1187     return false;
1188   // See http://crbug.com/117446 for the subtlety of this check.
1189   switch (current_context->context_type()) {
1190     case extensions::Feature::UNSPECIFIED_CONTEXT:
1191     case extensions::Feature::WEB_PAGE_CONTEXT:
1192     case extensions::Feature::UNBLESSED_EXTENSION_CONTEXT:
1193     case extensions::Feature::WEBUI_CONTEXT:
1194       return false;
1195     case extensions::Feature::BLESSED_EXTENSION_CONTEXT:
1196     case extensions::Feature::CONTENT_SCRIPT_CONTEXT:
1197       return true;
1198     case extensions::Feature::BLESSED_WEB_PAGE_CONTEXT:
1199       return !current_context->web_frame()->parent();
1200   }
1201   NOTREACHED();
1202 #endif
1203   return false;
1204 }
1205
1206 bool ChromeContentRendererClient::ShouldFork(blink::WebLocalFrame* frame,
1207                                              const GURL& url,
1208                                              const std::string& http_method,
1209                                              bool is_initial_navigation,
1210                                              bool is_server_redirect,
1211                                              bool* send_referrer) {
1212   DCHECK(!frame->parent());
1213
1214   // If this is the Instant process, fork all navigations originating from the
1215   // renderer.  The destination page will then be bucketed back to this Instant
1216   // process if it is an Instant url, or to another process if not.  Conversely,
1217   // fork if this is a non-Instant process navigating to an Instant url, so that
1218   // such navigations can also be bucketed into an Instant renderer.
1219   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1220           switches::kInstantProcess) ||
1221       SearchBouncer::GetInstance()->ShouldFork(url)) {
1222     *send_referrer = true;
1223     return true;
1224   }
1225
1226   // For now, we skip the rest for POST submissions.  This is because
1227   // http://crbug.com/101395 is more likely to cause compatibility issues
1228   // with hosted apps and extensions than WebUI pages.  We will remove this
1229   // check when cross-process POST submissions are supported.
1230   if (http_method != "GET")
1231     return false;
1232
1233   // If |url| matches one of the prerendered URLs, stop this navigation and try
1234   // to swap in the prerendered page on the browser process. If the prerendered
1235   // page no longer exists by the time the OpenURL IPC is handled, a normal
1236   // navigation is attempted.
1237   if (prerender_dispatcher_.get() &&
1238       prerender_dispatcher_->IsPrerenderURL(url)) {
1239     *send_referrer = true;
1240     return true;
1241   }
1242
1243 #if defined(ENABLE_EXTENSIONS)
1244   const extensions::RendererExtensionRegistry* extension_registry =
1245       extensions::RendererExtensionRegistry::Get();
1246
1247   // Determine if the new URL is an extension (excluding bookmark apps).
1248   const Extension* new_url_extension = extensions::GetNonBookmarkAppExtension(
1249       *extension_registry->GetMainThreadExtensionSet(), url);
1250   bool is_extension_url = !!new_url_extension;
1251
1252   // If the navigation would cross an app extent boundary, we also need
1253   // to defer to the browser to ensure process isolation.  This is not necessary
1254   // for server redirects, which will be transferred to a new process by the
1255   // browser process when they are ready to commit.  It is necessary for client
1256   // redirects, which won't be transferred in the same way.
1257   if (!is_server_redirect &&
1258       CrossesExtensionExtents(frame, url, is_extension_url,
1259                               is_initial_navigation)) {
1260     // Include the referrer in this case since we're going from a hosted web
1261     // page. (the packaged case is handled previously by the extension
1262     // navigation test)
1263     *send_referrer = true;
1264
1265     const Extension* extension =
1266         extension_registry->GetExtensionOrAppByURL(url);
1267     if (extension && extension->is_app()) {
1268       extensions::RecordAppLaunchType(
1269           extension_misc::APP_LAUNCH_CONTENT_NAVIGATION, extension->GetType());
1270     }
1271     return true;
1272   }
1273
1274   // If this is a reload, check whether it has the wrong process type.  We
1275   // should send it to the browser if it's an extension URL (e.g., hosted app)
1276   // in a normal process, or if it's a process for an extension that has been
1277   // uninstalled.  Without --site-per-process mode, we never fork processes for
1278   // subframes, so this check only makes sense for top-level frames.
1279   // TODO(alexmos,nasko): Figure out how this check should work when reloading
1280   // subframes in --site-per-process mode.
1281   if (!frame->parent() && frame->document().url() == url) {
1282     if (is_extension_url != IsStandaloneExtensionProcess())
1283       return true;
1284   }
1285 #endif  // defined(ENABLE_EXTENSIONS)
1286
1287   return false;
1288 }
1289
1290 bool ChromeContentRendererClient::WillSendRequest(
1291     blink::WebFrame* frame,
1292     ui::PageTransition transition_type,
1293     const GURL& url,
1294     const GURL& first_party_for_cookies,
1295     GURL* new_url) {
1296   // Check whether the request should be allowed. If not allowed, we reset the
1297   // URL to something invalid to prevent the request and cause an error.
1298 #if defined(ENABLE_EXTENSIONS)
1299   if (url.SchemeIs(extensions::kExtensionScheme) &&
1300       !extensions::ResourceRequestPolicy::CanRequestResource(url, frame,
1301                                                              transition_type)) {
1302     *new_url = GURL(chrome::kExtensionInvalidRequestURL);
1303     return true;
1304   }
1305
1306   if (url.SchemeIs(extensions::kExtensionResourceScheme) &&
1307       !extensions::ResourceRequestPolicy::CanRequestExtensionResourceScheme(
1308           url,
1309           frame)) {
1310     *new_url = GURL(chrome::kExtensionResourceInvalidRequestURL);
1311     return true;
1312   }
1313 #endif
1314
1315   const content::RenderView* render_view =
1316       content::RenderView::FromWebView(frame->view());
1317   SearchBox* search_box = SearchBox::Get(render_view);
1318   if (search_box && url.SchemeIs(chrome::kChromeSearchScheme)) {
1319     SearchBox::ImageSourceType type = SearchBox::NONE;
1320     if (url.host() == chrome::kChromeUIFaviconHost)
1321       type = SearchBox::FAVICON;
1322     else if (url.host() == chrome::kChromeUILargeIconHost)
1323       type = SearchBox::LARGE_ICON;
1324     else if (url.host() == chrome::kChromeUIFallbackIconHost)
1325       type = SearchBox::FALLBACK_ICON;
1326     else if (url.host() == chrome::kChromeUIThumbnailHost)
1327       type = SearchBox::THUMB;
1328     if (type != SearchBox::NONE)
1329       return search_box->GenerateImageURLFromTransientURL(url, type, new_url);
1330   }
1331
1332   return false;
1333 }
1334
1335 unsigned long long ChromeContentRendererClient::VisitedLinkHash(
1336     const char* canonical_url, size_t length) {
1337   return visited_link_slave_->ComputeURLFingerprint(canonical_url, length);
1338 }
1339
1340 bool ChromeContentRendererClient::IsLinkVisited(unsigned long long link_hash) {
1341   return visited_link_slave_->IsVisited(link_hash);
1342 }
1343
1344 blink::WebPrescientNetworking*
1345 ChromeContentRendererClient::GetPrescientNetworking() {
1346   return prescient_networking_dispatcher_.get();
1347 }
1348
1349 bool ChromeContentRendererClient::ShouldOverridePageVisibilityState(
1350     const content::RenderFrame* render_frame,
1351     blink::WebPageVisibilityState* override_state) {
1352   if (!prerender::PrerenderHelper::IsPrerendering(render_frame))
1353     return false;
1354
1355   *override_state = blink::WebPageVisibilityStatePrerender;
1356   return true;
1357 }
1358
1359 #if defined(ENABLE_EXTENSIONS)
1360 void ChromeContentRendererClient::SetExtensionDispatcherForTest(
1361     extensions::Dispatcher* extension_dispatcher) {
1362   extension_dispatcher_.reset(extension_dispatcher);
1363   permissions_policy_delegate_.reset(
1364       new extensions::RendererPermissionsPolicyDelegate(
1365           extension_dispatcher_.get()));
1366   RenderThread::Get()->RegisterExtension(
1367       extensions::SafeBuiltins::CreateV8Extension());
1368 }
1369
1370 extensions::Dispatcher*
1371 ChromeContentRendererClient::GetExtensionDispatcherForTest() {
1372   return extension_dispatcher_.get();
1373 }
1374
1375 bool ChromeContentRendererClient::CrossesExtensionExtents(
1376     blink::WebLocalFrame* frame,
1377     const GURL& new_url,
1378     bool is_extension_url,
1379     bool is_initial_navigation) {
1380   DCHECK(!frame->parent());
1381   GURL old_url(frame->document().url());
1382
1383   extensions::RendererExtensionRegistry* extension_registry =
1384       extensions::RendererExtensionRegistry::Get();
1385
1386   // If old_url is still empty and this is an initial navigation, then this is
1387   // a window.open operation.  We should look at the opener URL.  Note that the
1388   // opener is a local frame in this case.
1389   if (is_initial_navigation && old_url.is_empty() && frame->opener()) {
1390     WebLocalFrame* opener_frame = frame->opener()->toWebLocalFrame();
1391
1392     // If we're about to open a normal web page from a same-origin opener stuck
1393     // in an extension process, we want to keep it in process to allow the
1394     // opener to script it.
1395     WebDocument opener_document = opener_frame->document();
1396     WebSecurityOrigin opener_origin = opener_document.securityOrigin();
1397     bool opener_is_extension_url = !opener_origin.isUnique() &&
1398                                    extension_registry->GetExtensionOrAppByURL(
1399                                        opener_document.url()) != NULL;
1400     if (!is_extension_url &&
1401         !opener_is_extension_url &&
1402         IsStandaloneExtensionProcess() &&
1403         opener_origin.canRequest(WebURL(new_url)))
1404       return false;
1405
1406     // In all other cases, we want to compare against the URL that determines
1407     // the type of process.  In default Chrome, that's the URL of the opener's
1408     // top frame and not the opener frame itself.  In --site-per-process, we
1409     // can use the opener frame itself.
1410     // TODO(nick): Either wire this up to SiteIsolationPolicy, or to state on
1411     // |opener_frame|/its ancestors.
1412     if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1413             switches::kSitePerProcess))
1414       old_url = opener_frame->document().url();
1415     else
1416       old_url = opener_frame->top()->document().url();
1417   }
1418
1419   // Only consider keeping non-app URLs in an app process if this window
1420   // has an opener (in which case it might be an OAuth popup that tries to
1421   // script an iframe within the app).
1422   bool should_consider_workaround = !!frame->opener();
1423
1424   return extensions::CrossesExtensionProcessBoundary(
1425       *extension_registry->GetMainThreadExtensionSet(), old_url, new_url,
1426       should_consider_workaround);
1427 }
1428 #endif  // defined(ENABLE_EXTENSIONS)
1429
1430 #if defined(ENABLE_SPELLCHECK)
1431 void ChromeContentRendererClient::SetSpellcheck(SpellCheck* spellcheck) {
1432   RenderThread* thread = RenderThread::Get();
1433   if (spellcheck_.get() && thread)
1434     thread->RemoveObserver(spellcheck_.get());
1435   spellcheck_.reset(spellcheck);
1436   SpellCheckReplacer replacer(spellcheck_.get());
1437   content::RenderView::ForEach(&replacer);
1438   if (thread)
1439     thread->AddObserver(spellcheck_.get());
1440 }
1441 #endif
1442
1443 // static
1444 bool ChromeContentRendererClient::WasWebRequestUsedBySomeExtensions() {
1445 #if defined(ENABLE_EXTENSIONS)
1446   return g_current_client->extension_dispatcher_
1447       ->WasWebRequestUsedBySomeExtensions();
1448 #else
1449   return false;
1450 #endif
1451 }
1452
1453 const void* ChromeContentRendererClient::CreatePPAPIInterface(
1454     const std::string& interface_name) {
1455 #if defined(ENABLE_PLUGINS) && !defined(DISABLE_NACL)
1456   if (interface_name == PPB_NACL_PRIVATE_INTERFACE)
1457     return nacl::GetNaClPrivateInterface();
1458 #endif
1459   return NULL;
1460 }
1461
1462 bool ChromeContentRendererClient::IsExternalPepperPlugin(
1463     const std::string& module_name) {
1464   // TODO(bbudge) remove this when the trusted NaCl plugin has been removed.
1465   // We must defer certain plugin events for NaCl instances since we switch
1466   // from the in-process to the out-of-process proxy after instantiating them.
1467   return module_name == "Native Client";
1468 }
1469
1470 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
1471 bool ChromeContentRendererClient::IsExtensionOrSharedModuleWhitelisted(
1472     const GURL& url, const std::set<std::string>& whitelist) {
1473   const extensions::ExtensionSet* extension_set =
1474       extensions::RendererExtensionRegistry::Get()->GetMainThreadExtensionSet();
1475   return chrome::IsExtensionOrSharedModuleWhitelisted(url, extension_set,
1476       whitelist);
1477 }
1478 #endif
1479
1480 blink::WebSpeechSynthesizer*
1481 ChromeContentRendererClient::OverrideSpeechSynthesizer(
1482     blink::WebSpeechSynthesizerClient* client) {
1483   return new TtsDispatcher(client);
1484 }
1485
1486 bool ChromeContentRendererClient::AllowPepperMediaStreamAPI(
1487     const GURL& url) {
1488 #if !defined(OS_ANDROID)
1489   // Allow only the Hangouts app to use the MediaStream APIs. It's OK to check
1490   // the whitelist in the renderer, since we're only preventing access until
1491   // these APIs are public and stable.
1492   std::string url_host = url.host();
1493   if (url.SchemeIs("https") &&
1494       (base::EndsWith(url_host, "talkgadget.google.com",
1495                       base::CompareCase::INSENSITIVE_ASCII) ||
1496        base::EndsWith(url_host, "plus.google.com",
1497                       base::CompareCase::INSENSITIVE_ASCII) ||
1498        base::EndsWith(url_host, "plus.sandbox.google.com",
1499                       base::CompareCase::INSENSITIVE_ASCII)) &&
1500       base::StartsWith(url.path(), "/hangouts/",
1501                        base::CompareCase::INSENSITIVE_ASCII)) {
1502     return true;
1503   }
1504   // Allow access for tests.
1505   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1506           switches::kEnablePepperTesting)) {
1507     return true;
1508   }
1509 #endif  // !defined(OS_ANDROID)
1510   return false;
1511 }
1512
1513 void ChromeContentRendererClient::AddKeySystems(
1514     std::vector<media::KeySystemInfo>* key_systems) {
1515   AddChromeKeySystems(key_systems);
1516 }
1517
1518 bool ChromeContentRendererClient::ShouldReportDetailedMessageForSource(
1519     const base::string16& source) const {
1520 #if defined(ENABLE_EXTENSIONS)
1521   return extensions::IsSourceFromAnExtension(source);
1522 #else
1523   return false;
1524 #endif
1525 }
1526
1527 bool ChromeContentRendererClient::ShouldGatherSiteIsolationStats() const {
1528   // Site isolation stats are gathered currently for non-extension renderer
1529   // processes running a normal web page from the Internet.
1530   // TODO(nick): https://crbug.com/268640 Gather stats for extension processes
1531   // too; we would need to check the extension's manifest to know which sites
1532   // it's allowed to access.
1533 #if defined(ENABLE_EXTENSIONS)
1534   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
1535   return !command_line->HasSwitch(extensions::switches::kExtensionProcess);
1536 #else
1537   return true;
1538 #endif
1539 }
1540
1541 blink::WebWorkerContentSettingsClientProxy*
1542 ChromeContentRendererClient::CreateWorkerContentSettingsClientProxy(
1543     content::RenderFrame* render_frame,
1544     blink::WebFrame* frame) {
1545   return new WorkerContentSettingsClientProxy(render_frame, frame);
1546 }
1547
1548 bool ChromeContentRendererClient::IsPluginAllowedToUseDevChannelAPIs() {
1549 #if defined(ENABLE_PLUGINS)
1550   // Allow access for tests.
1551   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1552           switches::kEnablePepperTesting)) {
1553     return true;
1554   }
1555
1556   version_info::Channel channel = chrome::GetChannel();
1557   // Allow dev channel APIs to be used on "Canary", "Dev", and "Unknown"
1558   // releases of Chrome. Permitting "Unknown" allows these APIs to be used on
1559   // Chromium builds as well.
1560   return channel <= version_info::Channel::DEV;
1561 #else
1562   return false;
1563 #endif
1564 }
1565
1566 bool ChromeContentRendererClient::IsPluginAllowedToUseCameraDeviceAPI(
1567     const GURL& url) {
1568 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
1569   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1570           switches::kEnablePepperTesting))
1571     return true;
1572
1573   if (IsExtensionOrSharedModuleWhitelisted(url, allowed_camera_device_origins_))
1574     return true;
1575 #endif
1576
1577   return false;
1578 }
1579
1580 bool ChromeContentRendererClient::IsPluginAllowedToUseCompositorAPI(
1581     const GURL& url) {
1582 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
1583   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1584           switches::kEnablePepperTesting))
1585     return true;
1586   if (IsExtensionOrSharedModuleWhitelisted(url, allowed_compositor_origins_))
1587     return true;
1588
1589   version_info::Channel channel = chrome::GetChannel();
1590   return channel <= version_info::Channel::DEV;
1591 #else
1592   return false;
1593 #endif
1594 }
1595
1596 content::BrowserPluginDelegate*
1597 ChromeContentRendererClient::CreateBrowserPluginDelegate(
1598     content::RenderFrame* render_frame,
1599     const std::string& mime_type,
1600     const GURL& original_url) {
1601 #if defined(ENABLE_EXTENSIONS)
1602   if (mime_type == content::kBrowserPluginMimeType) {
1603     return new extensions::ExtensionsGuestViewContainer(render_frame);
1604   } else {
1605     return new extensions::MimeHandlerViewContainer(
1606         render_frame, mime_type, original_url);
1607   }
1608 #else
1609   return NULL;
1610 #endif
1611 }
1612
1613 void ChromeContentRendererClient::RecordRappor(const std::string& metric,
1614                                                const std::string& sample) {
1615   RenderThread::Get()->Send(new ChromeViewHostMsg_RecordRappor(metric, sample));
1616 }
1617
1618 void ChromeContentRendererClient::RecordRapporURL(const std::string& metric,
1619                                                   const GURL& url) {
1620   RenderThread::Get()->Send(new ChromeViewHostMsg_RecordRapporURL(metric, url));
1621 }
1622
1623 scoped_ptr<blink::WebAppBannerClient>
1624 ChromeContentRendererClient::CreateAppBannerClient(
1625     content::RenderFrame* render_frame) {
1626   return scoped_ptr<blink::WebAppBannerClient>(
1627       new AppBannerClient(render_frame));
1628 }
1629
1630 void ChromeContentRendererClient::AddImageContextMenuProperties(
1631     const blink::WebURLResponse& response,
1632     std::map<std::string, std::string>* properties) {
1633   DCHECK(properties);
1634   WebString header_key(ASCIIToUTF16(
1635       data_reduction_proxy::chrome_proxy_header()));
1636   if (!response.httpHeaderField(header_key).isNull() &&
1637       response.httpHeaderField(header_key).utf8().find(
1638           data_reduction_proxy::chrome_proxy_lo_fi_directive()) !=
1639               std::string::npos) {
1640     (*properties)[data_reduction_proxy::chrome_proxy_header()] =
1641         data_reduction_proxy::chrome_proxy_lo_fi_directive();
1642   }
1643 }
1644
1645 void
1646 ChromeContentRendererClient::DidInitializeServiceWorkerContextOnWorkerThread(
1647     v8::Local<v8::Context> context,
1648     const GURL& url) {
1649 #if defined(ENABLE_EXTENSIONS)
1650   extensions::Dispatcher::DidInitializeServiceWorkerContextOnWorkerThread(
1651       context, url);
1652 #endif
1653 }