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/prerender/prerender_dispatcher.h"
  47 #include "chrome/renderer/prerender/prerender_helper.h"
  48 #include "chrome/renderer/prerender/prerenderer_client.h"
  49 #include "chrome/renderer/safe_browsing/malware_dom_details.h"
  50 #include "chrome/renderer/safe_browsing/phishing_classifier_delegate.h"
  51 #include "chrome/renderer/searchbox/search_bouncer.h"
  52 #include "chrome/renderer/searchbox/searchbox.h"
  53 #include "chrome/renderer/searchbox/searchbox_extension.h"
  54 #include "chrome/renderer/tts_dispatcher.h"
  55 #include "chrome/renderer/worker_content_settings_client_proxy.h"
  56 #include "components/autofill/content/renderer/autofill_agent.h"
  57 #include "components/autofill/content/renderer/password_autofill_agent.h"
  58 #include "components/autofill/content/renderer/password_generation_agent.h"
  59 #include "components/content_settings/core/common/content_settings_pattern.h"
  60 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
  61 #include "components/dom_distiller/core/url_constants.h"
  62 #include "components/nacl/renderer/ppb_nacl_private.h"
  63 #include "components/nacl/renderer/ppb_nacl_private_impl.h"
  64 #include "components/network_hints/renderer/prescient_networking_dispatcher.h"
  65 #include "components/password_manager/content/renderer/credential_manager_client.h"
  66 #include "components/pdf/renderer/pepper_pdf_host.h"
  67 #include "components/plugins/renderer/mobile_youtube_plugin.h"
  68 #include "components/signin/core/common/profile_management_switches.h"
  69 #include "components/version_info/version_info.h"
  70 #include "components/visitedlink/renderer/visitedlink_slave.h"
  71 #include "components/web_cache/renderer/web_cache_render_process_observer.h"
  72 #include "content/public/common/content_constants.h"
  73 #include "content/public/renderer/plugin_instance_throttler.h"
  74 #include "content/public/renderer/render_frame.h"
  75 #include "content/public/renderer/render_thread.h"
  76 #include "content/public/renderer/render_view.h"
  77 #include "content/public/renderer/render_view_visitor.h"
  78 #include "extensions/common/constants.h"
  79 #include "ipc/ipc_sync_channel.h"
  80 #include "net/base/net_errors.h"
  81 #include "ppapi/c/private/ppb_pdf.h"
  82 #include "ppapi/shared_impl/ppapi_switches.h"
  83 #include "third_party/WebKit/public/platform/WebURL.h"
  84 #include "third_party/WebKit/public/platform/WebURLError.h"
  85 #include "third_party/WebKit/public/platform/WebURLRequest.h"
  86 #include "third_party/WebKit/public/platform/WebURLResponse.h"
  87 #include "third_party/WebKit/public/web/WebCache.h"
  88 #include "third_party/WebKit/public/web/WebDataSource.h"
  89 #include "third_party/WebKit/public/web/WebDocument.h"
  90 #include "third_party/WebKit/public/web/WebElement.h"
  91 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  92 #include "third_party/WebKit/public/web/WebPluginContainer.h"
  93 #include "third_party/WebKit/public/web/WebPluginParams.h"
  94 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
  95 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
  96 #include "ui/base/l10n/l10n_util.h"
  97 #include "ui/base/layout.h"
  98 #include "ui/base/resource/resource_bundle.h"
  99 #include "ui/base/webui/jstemplate_builder.h"
 100 #include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
 101
 102 #if !defined(DISABLE_NACL)
 103 #include "components/nacl/common/nacl_constants.h"
 104 #include "components/nacl/renderer/nacl_helper.h"
 105 #endif
 106
 107 #if defined(ENABLE_EXTENSIONS)
 108 #include "chrome/common/extensions/chrome_extensions_client.h"
 109 #include "chrome/common/extensions/extension_process_policy.h"
 110 #include "chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.h"
 111 #include "chrome/renderer/extensions/chrome_extensions_renderer_client.h"
 112 #include "chrome/renderer/extensions/renderer_permissions_policy_delegate.h"
 113 #include "chrome/renderer/extensions/resource_request_policy.h"
 114 #include "chrome/renderer/media/cast_ipc_dispatcher.h"
 115 #include "extensions/common/extension.h"
 116 #include "extensions/common/extension_set.h"
 117 #include "extensions/common/extension_urls.h"
 118 #include "extensions/common/switches.h"
 119 #include "extensions/renderer/dispatcher.h"
 120 #include "extensions/renderer/extension_frame_helper.h"
 121 #include "extensions/renderer/extension_helper.h"
 122 #include "extensions/renderer/extensions_render_frame_observer.h"
 123 #include "extensions/renderer/guest_view/extensions_guest_view_container.h"
 124 #include "extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.h"
 125 #include "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
 126 #include "extensions/renderer/renderer_extension_registry.h"
 127 #include "extensions/renderer/script_context.h"
 128 #endif
 129
 130 #if defined(ENABLE_IPC_FUZZER)
 131 #include "chrome/common/external_ipc_dumper.h"
 132 #endif
 133
 134 #if defined(ENABLE_PLUGINS)
 135 #include "chrome/renderer/plugins/chrome_plugin_placeholder.h"
 136 #endif
 137
 138 #if defined(ENABLE_PRINTING)
 139 #include "chrome/renderer/printing/chrome_print_web_view_helper_delegate.h"
 140 #include "components/printing/renderer/print_web_view_helper.h"
 141 #endif
 142
 143 #if defined(ENABLE_PRINT_PREVIEW)
 144 #include "chrome/renderer/pepper/chrome_pdf_print_client.h"
 145 #endif
 146
 147 #if defined(ENABLE_SPELLCHECK)
 148 #include "chrome/renderer/spellchecker/spellcheck.h"
 149 #include "chrome/renderer/spellchecker/spellcheck_provider.h"
 150 #endif
 151
 152 #if defined(ENABLE_WEBRTC)
 153 #include "chrome/renderer/media/webrtc_logging_message_filter.h"
 154 #endif
 155
 156 using autofill::AutofillAgent;
 157 using autofill::PasswordAutofillAgent;
 158 using autofill::PasswordGenerationAgent;
 159 using base::ASCIIToUTF16;
 160 using base::UserMetricsAction;
 161 using content::PluginInstanceThrottler;
 162 using content::RenderFrame;
 163 using content::RenderThread;
 164 using content::WebPluginInfo;
 165 using extensions::Extension;
 166 using blink::WebCache;
 167 using blink::WebConsoleMessage;
 168 using blink::WebDataSource;
 169 using blink::WebDocument;
 170 using blink::WebLocalFrame;
 171 using blink::WebPlugin;
 172 using blink::WebPluginParams;
 173 using blink::WebSecurityOrigin;
 174 using blink::WebSecurityPolicy;
 175 using blink::WebString;
 176 using blink::WebURL;
 177 using blink::WebURLError;
 178 using blink::WebURLRequest;
 179 using blink::WebURLResponse;
 180 using blink::WebVector;
 181
 182 namespace {
 183
 184 ChromeContentRendererClient* g_current_client;
 185
 186 // Whitelist PPAPI for Android Runtime for Chromium. (See crbug.com/383937)
 187 #if defined(ENABLE_PLUGINS)
 188 const char* const kPredefinedAllowedCameraDeviceOrigins[] = {
 189   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",
 190   "4EB74897CB187C7633357C2FE832E0AD6A44883A"
 191 };
 192
 193 const char* const kPredefinedAllowedCompositorOrigins[] = {
 194   "6EAED1924DB611B6EEF2A664BD077BE7EAD33B8F",
 195   "4EB74897CB187C7633357C2FE832E0AD6A44883A"
 196 };
 197 #endif
 198
 199 #if defined(ENABLE_PLUGINS)
 200 void AppendParams(const std::vector<base::string16>& additional_names,
 201                   const std::vector<base::string16>& additional_values,
 202                   WebVector<WebString>* existing_names,
 203                   WebVector<WebString>* existing_values) {
 204   DCHECK(additional_names.size() == additional_values.size());
 205   DCHECK(existing_names->size() == existing_values->size());
 206
 207   size_t existing_size = existing_names->size();
 208   size_t total_size = existing_size + additional_names.size();
 209
 210   WebVector<WebString> names(total_size);
 211   WebVector<WebString> values(total_size);
 212
 213   for (size_t i = 0; i < existing_size; ++i) {
 214     names[i] = (*existing_names)[i];
 215     values[i] = (*existing_values)[i];
 216   }
 217
 218   for (size_t i = 0; i < additional_names.size(); ++i) {
 219     names[existing_size + i] = additional_names[i];
 220     values[existing_size + i] = additional_values[i];
 221   }
 222
 223   existing_names->swap(names);
 224   existing_values->swap(values);
 225 }
 226
 227 // For certain sandboxed Pepper plugins, use the JavaScript Content Settings.
 228 bool ShouldUseJavaScriptSettingForPlugin(const WebPluginInfo& plugin) {
 229   if (plugin.type != WebPluginInfo::PLUGIN_TYPE_PEPPER_IN_PROCESS &&
 230       plugin.type != WebPluginInfo::PLUGIN_TYPE_PEPPER_OUT_OF_PROCESS) {
 231     return false;
 232   }
 233
 234 #if !defined(DISABLE_NACL)
 235   // Treat Native Client invocations like JavaScript.
 236   if (plugin.name == ASCIIToUTF16(nacl::kNaClPluginName))
 237     return true;
 238 #endif
 239
 240 #if defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
 241   // Treat CDM invocations like JavaScript.
 242   if (plugin.name == ASCIIToUTF16(kWidevineCdmDisplayName)) {
 243     DCHECK(plugin.type == WebPluginInfo::PLUGIN_TYPE_PEPPER_OUT_OF_PROCESS);
 244     return true;
 245   }
 246 #endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
 247
 248   return false;
 249 }
 250 #endif  // defined(ENABLE_PLUGINS)
 251
 252 #if defined(ENABLE_SPELLCHECK)
 253 class SpellCheckReplacer : public content::RenderViewVisitor {
 254  public:
 255   explicit SpellCheckReplacer(SpellCheck* spellcheck)
 256       : spellcheck_(spellcheck) {}
 257   bool Visit(content::RenderView* render_view) override;
 258
 259  private:
 260   SpellCheck* spellcheck_;  // New shared spellcheck for all views. Weak Ptr.
 261   DISALLOW_COPY_AND_ASSIGN(SpellCheckReplacer);
 262 };
 263
 264 bool SpellCheckReplacer::Visit(content::RenderView* render_view) {
 265   SpellCheckProvider* provider = SpellCheckProvider::Get(render_view);
 266   DCHECK(provider);
 267   provider->set_spellcheck(spellcheck_);
 268   return true;
 269 }
 270 #endif
 271
 272 #if defined(ENABLE_EXTENSIONS)
 273 void IsGuestViewApiAvailableToScriptContext(
 274     bool* api_is_available,
 275     extensions::ScriptContext* context) {
 276   if (context->GetAvailability("guestViewInternal").is_available()) {
 277     *api_is_available = true;
 278   }
 279 }
 280 #endif
 281
 282 #if defined(ENABLE_PLUGINS)
 283 // Presence of the poster param within plugin object tags.
 284 // These numeric values are used in UMA logs; do not change them.
 285 enum PosterParamPresence {
 286   POSTER_PRESENCE_NO_PARAM_PPS_DISABLED = 0,
 287   POSTER_PRESENCE_NO_PARAM_PPS_ENABLED = 1,
 288   POSTER_PRESENCE_PARAM_EXISTS_PPS_DISABLED = 2,
 289   POSTER_PRESENCE_PARAM_EXISTS_PPS_ENABLED = 3,
 290   POSTER_PRESENCE_NUM_ITEMS
 291 };
 292
 293 const char kPluginPowerSaverPosterParamPresenceHistogram[] =
 294     "Plugin.PowerSaver.PosterParamPresence";
 295
 296 void RecordPosterParamPresence(PosterParamPresence presence) {
 297   UMA_HISTOGRAM_ENUMERATION(kPluginPowerSaverPosterParamPresenceHistogram,
 298                             presence, POSTER_PRESENCE_NUM_ITEMS);
 299 }
 300
 301 void TrackPosterParamPresence(const blink::WebPluginParams& params,
 302                               bool power_saver_enabled) {
 303   DCHECK_EQ(params.attributeNames.size(), params.attributeValues.size());
 304
 305   for (size_t i = 0; i < params.attributeNames.size(); ++i) {
 306     if (params.attributeNames[i].utf8() == "poster") {
 307       if (power_saver_enabled)
 308         RecordPosterParamPresence(POSTER_PRESENCE_PARAM_EXISTS_PPS_ENABLED);
 309       else
 310         RecordPosterParamPresence(POSTER_PRESENCE_PARAM_EXISTS_PPS_DISABLED);
 311
 312       return;
 313     }
 314   }
 315
 316   if (power_saver_enabled)
 317     RecordPosterParamPresence(POSTER_PRESENCE_NO_PARAM_PPS_ENABLED);
 318   else
 319     RecordPosterParamPresence(POSTER_PRESENCE_NO_PARAM_PPS_DISABLED);
 320 }
 321
 322 std::string GetPluginInstancePosterAttribute(
 323     const blink::WebPluginParams& params) {
 324   DCHECK_EQ(params.attributeNames.size(), params.attributeValues.size());
 325
 326   for (size_t i = 0; i < params.attributeNames.size(); ++i) {
 327     if (params.attributeNames[i].utf8() == "poster" &&
 328         !params.attributeValues[i].isEmpty()) {
 329       return params.attributeValues[i].utf8();
 330     }
 331   }
 332   return std::string();
 333 }
 334 #endif
 335
 336 #if defined(ENABLE_EXTENSIONS)
 337 bool IsStandaloneExtensionProcess() {
 338   return base::CommandLine::ForCurrentProcess()->HasSwitch(
 339       extensions::switches::kExtensionProcess);
 340 }
 341 #endif
 342
 343 // Defers media player loading in background pages until they're visible.
 344 // TODO(dalecurtis): Include an idle listener too.  http://crbug.com/509135
 345 class MediaLoadDeferrer : public content::RenderFrameObserver {
 346  public:
 347   MediaLoadDeferrer(content::RenderFrame* render_frame,
 348                     const base::Closure& continue_loading_cb)
 349       : content::RenderFrameObserver(render_frame),
 350         continue_loading_cb_(continue_loading_cb) {}
 351   ~MediaLoadDeferrer() override {}
 352
 353  private:
 354   // content::RenderFrameObserver implementation:
 355   void WasShown() override {
 356     continue_loading_cb_.Run();
 357     delete this;
 358   }
 359
 360   const base::Closure continue_loading_cb_;
 361
 362   DISALLOW_COPY_AND_ASSIGN(MediaLoadDeferrer);
 363 };
 364
 365 }  // namespace
 366
 367 ChromeContentRendererClient::ChromeContentRendererClient() {
 368   g_current_client = this;
 369
 370 #if defined(ENABLE_EXTENSIONS)
 371   extensions::ExtensionsClient::Set(
 372       extensions::ChromeExtensionsClient::GetInstance());
 373   extensions::ExtensionsRendererClient::Set(
 374       ChromeExtensionsRendererClient::GetInstance());
 375 #endif
 376 #if defined(ENABLE_PLUGINS)
 377   for (size_t i = 0; i < arraysize(kPredefinedAllowedCameraDeviceOrigins); ++i)
 378     allowed_camera_device_origins_.insert(
 379         kPredefinedAllowedCameraDeviceOrigins[i]);
 380   for (size_t i = 0; i < arraysize(kPredefinedAllowedCompositorOrigins); ++i)
 381     allowed_compositor_origins_.insert(kPredefinedAllowedCompositorOrigins[i]);
 382 #endif
 383 }
 384
 385 ChromeContentRendererClient::~ChromeContentRendererClient() {
 386   g_current_client = NULL;
 387 }
 388
 389 void ChromeContentRendererClient::RenderThreadStarted() {
 390   RenderThread* thread = RenderThread::Get();
 391
 392   chrome_observer_.reset(new ChromeRenderProcessObserver());
 393   web_cache_observer_.reset(new web_cache::WebCacheRenderProcessObserver());
 394
 395 #if defined(ENABLE_EXTENSIONS)
 396   extension_dispatcher_delegate_.reset(
 397       new ChromeExtensionsDispatcherDelegate());
 398   // ChromeRenderViewTest::SetUp() creates its own ExtensionDispatcher and
 399   // injects it using SetExtensionDispatcher(). Don't overwrite it.
 400   if (!extension_dispatcher_) {
 401     extension_dispatcher_.reset(
 402         new extensions::Dispatcher(extension_dispatcher_delegate_.get()));
 403   }
 404   permissions_policy_delegate_.reset(
 405       new extensions::RendererPermissionsPolicyDelegate(
 406           extension_dispatcher_.get()));
 407   resource_request_policy_.reset(
 408       new extensions::ResourceRequestPolicy(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 bool ChromeContentRendererClient::OverrideCreatePlugin(
 629     content::RenderFrame* render_frame,
 630     blink::WebLocalFrame* frame,
 631     const WebPluginParams& params,
 632     WebPlugin** plugin) {
 633   std::string orig_mime_type = params.mimeType.utf8();
 634 #if defined(ENABLE_EXTENSIONS)
 635   if (orig_mime_type == content::kBrowserPluginMimeType) {
 636     bool guest_view_api_available = false;
 637     extension_dispatcher_->script_context_set().ForEach(
 638         render_frame, base::Bind(&IsGuestViewApiAvailableToScriptContext,
 639                                  &guest_view_api_available));
 640     if (guest_view_api_available)
 641       return false;
 642   }
 643 #endif
 644
 645   GURL url(params.url);
 646 #if defined(ENABLE_PLUGINS)
 647   ChromeViewHostMsg_GetPluginInfo_Output output;
 648   WebString top_origin = frame->top()->securityOrigin().toString();
 649   render_frame->Send(new ChromeViewHostMsg_GetPluginInfo(
 650       render_frame->GetRoutingID(), url, GURL(top_origin), orig_mime_type,
 651       &output));
 652   *plugin = CreatePlugin(render_frame, frame, params, output);
 653 #else  // !defined(ENABLE_PLUGINS)
 654
 655 #if defined(OS_ANDROID)
 656   if (plugins::MobileYouTubePlugin::IsYouTubeURL(url, orig_mime_type)) {
 657     base::StringPiece template_html(
 658         ResourceBundle::GetSharedInstance().GetRawDataResource(
 659             IDR_MOBILE_YOUTUBE_PLUGIN_HTML));
 660     *plugin = (new plugins::MobileYouTubePlugin(render_frame, frame, params,
 661                                                 template_html))->plugin();
 662     return true;
 663   }
 664 #endif  // defined(OS_ANDROID)
 665
 666   PluginUMAReporter::GetInstance()->ReportPluginMissing(orig_mime_type, url);
 667   *plugin = NonLoadablePluginPlaceholder::CreateNotSupportedPlugin(
 668                 render_frame, frame, params)->plugin();
 669
 670 #endif  // defined(ENABLE_PLUGINS)
 671   return true;
 672 }
 673
 674 WebPlugin* ChromeContentRendererClient::CreatePluginReplacement(
 675     content::RenderFrame* render_frame,
 676     const base::FilePath& plugin_path) {
 677   return NonLoadablePluginPlaceholder::CreateErrorPlugin(render_frame,
 678                                                          plugin_path)->plugin();
 679 }
 680
 681 void ChromeContentRendererClient::DeferMediaLoad(
 682     content::RenderFrame* render_frame,
 683     bool has_played_media_before,
 684     const base::Closure& closure) {
 685   // Don't allow autoplay/autoload of media resources in a RenderFrame that is
 686   // hidden and has never played any media before.  We want to allow future
 687   // loads even when hidden to allow playlist-like functionality.
 688   //
 689   // NOTE: This is also used to defer media loading for prerender.
 690   //
 691   // TODO(dalecurtis): Include an idle check too.  http://crbug.com/509135
 692   if (render_frame->IsHidden() && !has_played_media_before) {
 693     // Lifetime is tied to |render_frame| via content::RenderFrameObserver.
 694     new MediaLoadDeferrer(render_frame, closure);
 695     return;
 696   }
 697
 698   closure.Run();
 699 }
 700
 701 #if defined(ENABLE_PLUGINS)
 702 WebPlugin* ChromeContentRendererClient::CreatePlugin(
 703     content::RenderFrame* render_frame,
 704     blink::WebLocalFrame* frame,
 705     const WebPluginParams& original_params,
 706     const ChromeViewHostMsg_GetPluginInfo_Output& output) {
 707   const WebPluginInfo& info = output.plugin;
 708   const std::string& actual_mime_type = output.actual_mime_type;
 709   const base::string16& group_name = output.group_name;
 710   const std::string& identifier = output.group_identifier;
 711   ChromeViewHostMsg_GetPluginInfo_Status status = output.status;
 712   GURL url(original_params.url);
 713   std::string orig_mime_type = original_params.mimeType.utf8();
 714   ChromePluginPlaceholder* placeholder = NULL;
 715
 716   // If the browser plugin is to be enabled, this should be handled by the
 717   // renderer, so the code won't reach here due to the early exit in
 718   // OverrideCreatePlugin.
 719   if (status == ChromeViewHostMsg_GetPluginInfo_Status::kNotFound ||
 720       orig_mime_type == content::kBrowserPluginMimeType) {
 721     PluginUMAReporter::GetInstance()->ReportPluginMissing(orig_mime_type, url);
 722     placeholder = ChromePluginPlaceholder::CreateLoadableMissingPlugin(
 723         render_frame, frame, original_params);
 724   } else {
 725     // TODO(bauerb): This should be in content/.
 726     WebPluginParams params(original_params);
 727     for (size_t i = 0; i < info.mime_types.size(); ++i) {
 728       if (info.mime_types[i].mime_type == actual_mime_type) {
 729         AppendParams(info.mime_types[i].additional_param_names,
 730                      info.mime_types[i].additional_param_values,
 731                      &params.attributeNames, &params.attributeValues);
 732         break;
 733       }
 734     }
 735     if (params.mimeType.isNull() && (actual_mime_type.size() > 0)) {
 736       // Webkit might say that mime type is null while we already know the
 737       // actual mime type via ChromeViewHostMsg_GetPluginInfo. In that case
 738       // we should use what we know since WebpluginDelegateProxy does some
 739       // specific initializations based on this information.
 740       params.mimeType = WebString::fromUTF8(actual_mime_type.c_str());
 741     }
 742
 743     ContentSettingsObserver* observer =
 744         ContentSettingsObserver::Get(render_frame);
 745
 746     const ContentSettingsType content_type =
 747         ShouldUseJavaScriptSettingForPlugin(info)
 748             ? CONTENT_SETTINGS_TYPE_JAVASCRIPT
 749             : CONTENT_SETTINGS_TYPE_PLUGINS;
 750
 751     if ((status == ChromeViewHostMsg_GetPluginInfo_Status::kUnauthorized ||
 752          status == ChromeViewHostMsg_GetPluginInfo_Status::kBlocked) &&
 753         observer->IsPluginTemporarilyAllowed(identifier)) {
 754       status = ChromeViewHostMsg_GetPluginInfo_Status::kAllowed;
 755     }
 756
 757 #if defined(OS_WIN)
 758     // In Windows we need to check if we can load NPAPI plugins.
 759     // For example, if the render view is in the Ash desktop, we should not.
 760     // If user is on ALLOW or DETECT setting, loading needs to be blocked here.
 761     if ((status == ChromeViewHostMsg_GetPluginInfo_Status::kAllowed ||
 762          status ==
 763              ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent) &&
 764         info.type == content::WebPluginInfo::PLUGIN_TYPE_NPAPI) {
 765         if (observer->AreNPAPIPluginsBlocked())
 766           status = ChromeViewHostMsg_GetPluginInfo_Status::kNPAPINotSupported;
 767     }
 768 #endif
 769
 770     auto create_blocked_plugin =
 771         [&render_frame, &frame, &params, &info, &identifier, &group_name](
 772             int template_id, const base::string16& message) {
 773           return ChromePluginPlaceholder::CreateBlockedPlugin(
 774               render_frame, frame, params, info, identifier, group_name,
 775               template_id, message, PlaceholderPosterInfo());
 776         };
 777     switch (status) {
 778       case ChromeViewHostMsg_GetPluginInfo_Status::kNotFound: {
 779         NOTREACHED();
 780         break;
 781       }
 782       case ChromeViewHostMsg_GetPluginInfo_Status::kAllowed:
 783       case ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent: {
 784 #if !defined(DISABLE_NACL) && defined(ENABLE_EXTENSIONS)
 785         const bool is_nacl_plugin =
 786             info.name == ASCIIToUTF16(nacl::kNaClPluginName);
 787         const bool is_nacl_mime_type =
 788             actual_mime_type == nacl::kNaClPluginMimeType;
 789         const bool is_pnacl_mime_type =
 790             actual_mime_type == nacl::kPnaclPluginMimeType;
 791         if (is_nacl_plugin || is_nacl_mime_type || is_pnacl_mime_type) {
 792           bool is_nacl_unrestricted = false;
 793           if (is_nacl_mime_type) {
 794             is_nacl_unrestricted =
 795                 base::CommandLine::ForCurrentProcess()->HasSwitch(
 796                     switches::kEnableNaCl);
 797           } else if (is_pnacl_mime_type) {
 798             is_nacl_unrestricted = true;
 799           }
 800           GURL manifest_url;
 801           GURL app_url;
 802           if (is_nacl_mime_type || is_pnacl_mime_type) {
 803             // Normal NaCl/PNaCl embed. The app URL is the page URL.
 804             manifest_url = url;
 805             app_url = frame->top()->document().url();
 806           } else {
 807             // NaCl is being invoked as a content handler. Look up the NaCl
 808             // module using the MIME type. The app URL is the manifest URL.
 809             manifest_url = GetNaClContentHandlerURL(actual_mime_type, info);
 810             app_url = manifest_url;
 811           }
 812           const Extension* extension =
 813               extensions::RendererExtensionRegistry::Get()
 814                   ->GetExtensionOrAppByURL(manifest_url);
 815           if (!IsNaClAllowed(manifest_url,
 816                              app_url,
 817                              is_nacl_unrestricted,
 818                              extension,
 819                              &params)) {
 820             WebString error_message;
 821             if (is_nacl_mime_type) {
 822               error_message =
 823                   "Only unpacked extensions and apps installed from the Chrome "
 824                   "Web Store can load NaCl modules without enabling Native "
 825                   "Client in about:flags.";
 826             } else if (is_pnacl_mime_type) {
 827               error_message =
 828                   "Portable Native Client must not be disabled in about:flags.";
 829             }
 830             frame->addMessageToConsole(
 831                 WebConsoleMessage(WebConsoleMessage::LevelError,
 832                                   error_message));
 833             placeholder = create_blocked_plugin(
 834                 IDR_BLOCKED_PLUGIN_HTML,
 835 #if defined(OS_CHROMEOS)
 836                 l10n_util::GetStringUTF16(IDS_NACL_PLUGIN_BLOCKED));
 837 #else
 838                 l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name));
 839 #endif
 840             break;
 841           }
 842         }
 843 #endif  // !defined(DISABLE_NACL) && defined(ENABLE_EXTENSIONS)
 844
 845         // Delay loading plugins if prerendering.
 846         // TODO(mmenke):  In the case of prerendering, feed into
 847         //                ChromeContentRendererClient::CreatePlugin instead, to
 848         //                reduce the chance of future regressions.
 849         bool is_prerendering =
 850             prerender::PrerenderHelper::IsPrerendering(render_frame);
 851         bool power_saver_enabled =
 852             status ==
 853                 ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent;
 854         bool blocked_for_background_tab =
 855             render_frame->IsHidden() && power_saver_enabled;
 856
 857         if (info.name == ASCIIToUTF16(content::kFlashPluginName))
 858           TrackPosterParamPresence(params, power_saver_enabled);
 859
 860         PlaceholderPosterInfo poster_info;
 861         if (power_saver_enabled) {
 862           poster_info.poster_attribute =
 863               GetPluginInstancePosterAttribute(params);
 864           poster_info.base_url = frame->document().url();
 865         }
 866
 867         if (blocked_for_background_tab || is_prerendering ||
 868             !poster_info.poster_attribute.empty()) {
 869           placeholder = ChromePluginPlaceholder::CreateBlockedPlugin(
 870               render_frame, frame, params, info, identifier, group_name,
 871               poster_info.poster_attribute.empty() ? IDR_BLOCKED_PLUGIN_HTML
 872                                                    : IDR_PLUGIN_POSTER_HTML,
 873               l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
 874               poster_info);
 875           placeholder->set_blocked_for_background_tab(
 876               blocked_for_background_tab);
 877           placeholder->set_blocked_for_prerendering(is_prerendering);
 878           placeholder->set_power_saver_enabled(power_saver_enabled);
 879           placeholder->AllowLoading();
 880           break;
 881         }
 882
 883         scoped_ptr<content::PluginInstanceThrottler> throttler;
 884         if (power_saver_enabled) {
 885           throttler = PluginInstanceThrottler::Create();
 886           // PluginPreroller manages its own lifetime.
 887           new PluginPreroller(
 888               render_frame, frame, params, info, identifier, group_name,
 889               l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name),
 890               throttler.get());
 891         }
 892
 893         return render_frame->CreatePlugin(frame, info, params,
 894                                           throttler.Pass());
 895       }
 896       case ChromeViewHostMsg_GetPluginInfo_Status::kNPAPINotSupported: {
 897         RenderThread::Get()->RecordAction(
 898             UserMetricsAction("Plugin_NPAPINotSupported"));
 899         placeholder = create_blocked_plugin(
 900             IDR_BLOCKED_PLUGIN_HTML,
 901             l10n_util::GetStringUTF16(IDS_PLUGIN_NOT_SUPPORTED_METRO));
 902         render_frame->Send(new ChromeViewHostMsg_NPAPINotSupported(
 903             render_frame->GetRoutingID(), identifier));
 904         break;
 905       }
 906       case ChromeViewHostMsg_GetPluginInfo_Status::kDisabled: {
 907         PluginUMAReporter::GetInstance()->ReportPluginDisabled(orig_mime_type,
 908                                                                url);
 909         placeholder = create_blocked_plugin(
 910             IDR_DISABLED_PLUGIN_HTML,
 911             l10n_util::GetStringFUTF16(IDS_PLUGIN_DISABLED, group_name));
 912         break;
 913       }
 914       case ChromeViewHostMsg_GetPluginInfo_Status::kOutdatedBlocked: {
 915 #if defined(ENABLE_PLUGIN_INSTALLATION)
 916         placeholder = create_blocked_plugin(
 917             IDR_BLOCKED_PLUGIN_HTML,
 918             l10n_util::GetStringFUTF16(IDS_PLUGIN_OUTDATED, group_name));
 919         placeholder->AllowLoading();
 920         render_frame->Send(new ChromeViewHostMsg_BlockedOutdatedPlugin(
 921             render_frame->GetRoutingID(), placeholder->CreateRoutingId(),
 922             identifier));
 923 #else
 924         NOTREACHED();
 925 #endif
 926         break;
 927       }
 928       case ChromeViewHostMsg_GetPluginInfo_Status::kOutdatedDisallowed: {
 929         placeholder = create_blocked_plugin(
 930             IDR_BLOCKED_PLUGIN_HTML,
 931             l10n_util::GetStringFUTF16(IDS_PLUGIN_OUTDATED, group_name));
 932         break;
 933       }
 934       case ChromeViewHostMsg_GetPluginInfo_Status::kUnauthorized: {
 935         placeholder = create_blocked_plugin(
 936             IDR_BLOCKED_PLUGIN_HTML,
 937             l10n_util::GetStringFUTF16(IDS_PLUGIN_NOT_AUTHORIZED, group_name));
 938         placeholder->AllowLoading();
 939         if (info.type != content::WebPluginInfo::PLUGIN_TYPE_NPAPI) {
 940           render_frame->Send(new ChromeViewHostMsg_BlockedUnauthorizedPlugin(
 941               render_frame->GetRoutingID(),
 942               group_name,
 943               identifier));
 944         }
 945         observer->DidBlockContentType(content_type, group_name);
 946         break;
 947       }
 948       case ChromeViewHostMsg_GetPluginInfo_Status::kBlocked: {
 949         placeholder = create_blocked_plugin(
 950             IDR_BLOCKED_PLUGIN_HTML,
 951             l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED, group_name));
 952         placeholder->AllowLoading();
 953         RenderThread::Get()->RecordAction(UserMetricsAction("Plugin_Blocked"));
 954         observer->DidBlockContentType(content_type, group_name);
 955         break;
 956       }
 957       case ChromeViewHostMsg_GetPluginInfo_Status::kBlockedByPolicy: {
 958         placeholder = create_blocked_plugin(
 959             IDR_BLOCKED_PLUGIN_HTML,
 960             l10n_util::GetStringFUTF16(IDS_PLUGIN_BLOCKED_BY_POLICY,
 961                                        group_name));
 962         RenderThread::Get()->RecordAction(
 963             UserMetricsAction("Plugin_BlockedByPolicy"));
 964         observer->DidBlockContentType(content_type, group_name);
 965         break;
 966       }
 967     }
 968   }
 969   placeholder->SetStatus(status);
 970   return placeholder->plugin();
 971 }
 972 #endif  // defined(ENABLE_PLUGINS)
 973
 974 // For NaCl content handling plugins, the NaCl manifest is stored in an
 975 // additonal 'nacl' param associated with the MIME type.
 976 //  static
 977 GURL ChromeContentRendererClient::GetNaClContentHandlerURL(
 978     const std::string& actual_mime_type,
 979     const content::WebPluginInfo& plugin) {
 980   // Look for the manifest URL among the MIME type's additonal parameters.
 981   const char kNaClPluginManifestAttribute[] = "nacl";
 982   base::string16 nacl_attr = ASCIIToUTF16(kNaClPluginManifestAttribute);
 983   for (size_t i = 0; i < plugin.mime_types.size(); ++i) {
 984     if (plugin.mime_types[i].mime_type == actual_mime_type) {
 985       const content::WebPluginMimeType& content_type = plugin.mime_types[i];
 986       for (size_t i = 0; i < content_type.additional_param_names.size(); ++i) {
 987         if (content_type.additional_param_names[i] == nacl_attr)
 988           return GURL(content_type.additional_param_values[i]);
 989       }
 990       break;
 991     }
 992   }
 993   return GURL();
 994 }
 995
 996 #if !defined(DISABLE_NACL)
 997 //  static
 998 bool ChromeContentRendererClient::IsNaClAllowed(
 999     const GURL& manifest_url,
1000     const GURL& app_url,
1001     bool is_nacl_unrestricted,
1002     const Extension* extension,
1003     WebPluginParams* params) {
1004   // Temporarily allow these whitelisted apps and WebUIs to use NaCl.
1005   std::string app_url_host = app_url.host();
1006   std::string manifest_url_path = manifest_url.path();
1007
1008   bool is_whitelisted_web_ui =
1009       app_url.spec() == chrome::kChromeUIAppListStartPageURL;
1010
1011   bool is_photo_app =
1012       // Whitelisted apps must be served over https.
1013       app_url.SchemeIsCryptographic() && manifest_url.SchemeIsCryptographic() &&
1014       (base::EndsWith(app_url_host, "plus.google.com",
1015                       base::CompareCase::INSENSITIVE_ASCII) ||
1016        base::EndsWith(app_url_host, "plus.sandbox.google.com",
1017                       base::CompareCase::INSENSITIVE_ASCII)) &&
1018       manifest_url.DomainIs("ssl.gstatic.com") &&
1019       (manifest_url_path.find("s2/oz/nacl/") == 1 ||
1020        manifest_url_path.find("photos/nacl/") == 1);
1021
1022   std::string manifest_fs_host;
1023   if (manifest_url.SchemeIsFileSystem() && manifest_url.inner_url()) {
1024     manifest_fs_host = manifest_url.inner_url()->host();
1025   }
1026   bool is_hangouts_app =
1027       // Whitelisted apps must be served over secure scheme.
1028       app_url.SchemeIsCryptographic() && manifest_url.SchemeIsFileSystem() &&
1029       manifest_url.inner_url()->SchemeIsCryptographic() &&
1030       (base::EndsWith(app_url_host, "talkgadget.google.com",
1031                       base::CompareCase::INSENSITIVE_ASCII) ||
1032        base::EndsWith(app_url_host, "plus.google.com",
1033                       base::CompareCase::INSENSITIVE_ASCII) ||
1034        base::EndsWith(app_url_host, "plus.sandbox.google.com",
1035                       base::CompareCase::INSENSITIVE_ASCII)) &&
1036       // The manifest must be loaded from the host's FileSystem.
1037       (manifest_fs_host == app_url_host);
1038
1039   bool is_whitelisted_app = is_photo_app || is_hangouts_app;
1040
1041   bool is_invoked_by_webstore_installed_extension = false;
1042   bool is_extension_unrestricted = false;
1043   bool is_extension_force_installed = false;
1044 #if defined(ENABLE_EXTENSIONS)
1045   bool is_extension_from_webstore = extension && extension->from_webstore();
1046
1047   bool is_invoked_by_extension = app_url.SchemeIs("chrome-extension");
1048   bool is_invoked_by_hosted_app = extension &&
1049       extension->is_hosted_app() &&
1050       extension->web_extent().MatchesURL(app_url);
1051
1052   is_invoked_by_webstore_installed_extension = is_extension_from_webstore &&
1053       (is_invoked_by_extension || is_invoked_by_hosted_app);
1054
1055   // Allow built-in extensions and developer mode extensions.
1056   is_extension_unrestricted = extension &&
1057        (extensions::Manifest::IsUnpackedLocation(extension->location()) ||
1058         extensions::Manifest::IsComponentLocation(extension->location()));
1059   // Allow extensions force installed by admin policy.
1060   is_extension_force_installed = extension &&
1061        extensions::Manifest::IsPolicyLocation(extension->location());
1062 #endif  // defined(ENABLE_EXTENSIONS)
1063
1064   // Allow NaCl under any of the following circumstances:
1065   //  1) An app or URL is explictly whitelisted above.
1066   //  2) An extension is loaded unpacked or built-in (component) to Chrome.
1067   //  3) An extension is force installed by policy.
1068   //  4) An extension is installed from the webstore, and invoked in that
1069   //     context (hosted app URL or chrome-extension:// scheme).
1070   //  5) --enable-nacl is set.
1071   bool is_nacl_allowed_by_location =
1072       is_whitelisted_web_ui ||
1073       is_whitelisted_app ||
1074       is_extension_unrestricted ||
1075       is_extension_force_installed ||
1076       is_invoked_by_webstore_installed_extension;
1077   bool is_nacl_allowed = is_nacl_allowed_by_location || is_nacl_unrestricted;
1078   if (is_nacl_allowed) {
1079     // Make sure that PPAPI 'dev' interfaces are only available for unpacked
1080     // and component extensions.  Also allow dev interfaces when --enable-nacl
1081     // is set, but do not allow --enable-nacl to provide dev interfaces to
1082     // webstore installed and other normally allowed URLs.
1083     WebString dev_attribute = WebString::fromUTF8("@dev");
1084     if (is_extension_unrestricted ||
1085         (is_nacl_unrestricted && !is_nacl_allowed_by_location)) {
1086       // Add the special '@dev' attribute.
1087       std::vector<base::string16> param_names;
1088       std::vector<base::string16> param_values;
1089       param_names.push_back(dev_attribute);
1090       param_values.push_back(WebString());
1091       AppendParams(
1092           param_names,
1093           param_values,
1094           &params->attributeNames,
1095           &params->attributeValues);
1096     } else {
1097       // If the params somehow contain '@dev', remove it.
1098       size_t attribute_count = params->attributeNames.size();
1099       for (size_t i = 0; i < attribute_count; ++i) {
1100         if (params->attributeNames[i].equals(dev_attribute))
1101           params->attributeNames[i] = WebString();
1102       }
1103     }
1104   }
1105   return is_nacl_allowed;
1106 }
1107 #endif  // defined(DISABLE_NACL)
1108
1109 bool ChromeContentRendererClient::HasErrorPage(int http_status_code,
1110                                                std::string* error_domain) {
1111   // Use an internal error page, if we have one for the status code.
1112   if (!LocalizedError::HasStrings(LocalizedError::kHttpErrorDomain,
1113                                   http_status_code)) {
1114     return false;
1115   }
1116
1117   *error_domain = LocalizedError::kHttpErrorDomain;
1118   return true;
1119 }
1120
1121 bool ChromeContentRendererClient::ShouldSuppressErrorPage(
1122     content::RenderFrame* render_frame,
1123     const GURL& url) {
1124   // Unit tests for ChromeContentRendererClient pass a NULL RenderFrame here.
1125   // Unfortunately it's very difficult to construct a mock RenderView, so skip
1126   // this functionality in this case.
1127   if (render_frame) {
1128     content::RenderView* render_view = render_frame->GetRenderView();
1129     content::RenderFrame* main_render_frame = render_view->GetMainRenderFrame();
1130     blink::WebFrame* web_frame = render_frame->GetWebFrame();
1131     NetErrorHelper* net_error_helper = NetErrorHelper::Get(main_render_frame);
1132     if (net_error_helper->ShouldSuppressErrorPage(web_frame, url))
1133       return true;
1134   }
1135   // Do not flash an error page if the Instant new tab page fails to load.
1136   return SearchBouncer::GetInstance()->IsNewTabPage(url);
1137 }
1138
1139 void ChromeContentRendererClient::GetNavigationErrorStrings(
1140     content::RenderView* render_view,
1141     blink::WebFrame* frame,
1142     const blink::WebURLRequest& failed_request,
1143     const blink::WebURLError& error,
1144     std::string* error_html,
1145     base::string16* error_description) {
1146   const GURL failed_url = error.unreachableURL;
1147
1148   bool is_post = base::EqualsASCII(
1149       base::StringPiece16(failed_request.httpMethod()), "POST");
1150
1151   if (error_html) {
1152     // TODO(ellyjones): change GetNavigationErrorStrings to take a RenderFrame
1153     // instead of a RenderView, then pass that in.
1154     // This is safe for now because we only install the NetErrorHelper on the
1155     // main render frame anyway; see the TODO(ellyjones) in
1156     // RenderFrameCreated.
1157     content::RenderFrame* main_render_frame = render_view->GetMainRenderFrame();
1158     NetErrorHelper* helper = NetErrorHelper::Get(main_render_frame);
1159     helper->GetErrorHTML(frame, error, is_post, error_html);
1160   }
1161
1162   if (error_description)
1163     *error_description = LocalizedError::GetErrorDetails(error, is_post);
1164 }
1165
1166 bool ChromeContentRendererClient::RunIdleHandlerWhenWidgetsHidden() {
1167 #if defined(ENABLE_EXTENSIONS)
1168   return !IsStandaloneExtensionProcess();
1169 #else
1170   return true;
1171 #endif
1172 }
1173
1174 bool ChromeContentRendererClient::
1175     AllowTimerSuspensionWhenProcessBackgrounded() {
1176 #if defined(OS_ANDROID)
1177   return true;
1178 #else
1179   return false;
1180 #endif
1181 }
1182
1183 bool ChromeContentRendererClient::AllowPopup() {
1184 #if defined(ENABLE_EXTENSIONS)
1185   extensions::ScriptContext* current_context =
1186       extension_dispatcher_->script_context_set().GetCurrent();
1187   if (!current_context || !current_context->extension())
1188     return false;
1189   // See http://crbug.com/117446 for the subtlety of this check.
1190   switch (current_context->context_type()) {
1191     case extensions::Feature::UNSPECIFIED_CONTEXT:
1192     case extensions::Feature::WEB_PAGE_CONTEXT:
1193     case extensions::Feature::UNBLESSED_EXTENSION_CONTEXT:
1194     case extensions::Feature::WEBUI_CONTEXT:
1195     case extensions::Feature::SERVICE_WORKER_CONTEXT:
1196       return false;
1197     case extensions::Feature::BLESSED_EXTENSION_CONTEXT:
1198     case extensions::Feature::CONTENT_SCRIPT_CONTEXT:
1199       return true;
1200     case extensions::Feature::BLESSED_WEB_PAGE_CONTEXT:
1201       return !current_context->web_frame()->parent();
1202   }
1203   NOTREACHED();
1204 #endif
1205   return false;
1206 }
1207
1208 bool ChromeContentRendererClient::ShouldFork(blink::WebLocalFrame* frame,
1209                                              const GURL& url,
1210                                              const std::string& http_method,
1211                                              bool is_initial_navigation,
1212                                              bool is_server_redirect,
1213                                              bool* send_referrer) {
1214   DCHECK(!frame->parent());
1215
1216   // If this is the Instant process, fork all navigations originating from the
1217   // renderer.  The destination page will then be bucketed back to this Instant
1218   // process if it is an Instant url, or to another process if not.  Conversely,
1219   // fork if this is a non-Instant process navigating to an Instant url, so that
1220   // such navigations can also be bucketed into an Instant renderer.
1221   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1222           switches::kInstantProcess) ||
1223       SearchBouncer::GetInstance()->ShouldFork(url)) {
1224     *send_referrer = true;
1225     return true;
1226   }
1227
1228   // For now, we skip the rest for POST submissions.  This is because
1229   // http://crbug.com/101395 is more likely to cause compatibility issues
1230   // with hosted apps and extensions than WebUI pages.  We will remove this
1231   // check when cross-process POST submissions are supported.
1232   if (http_method != "GET")
1233     return false;
1234
1235   // If |url| matches one of the prerendered URLs, stop this navigation and try
1236   // to swap in the prerendered page on the browser process. If the prerendered
1237   // page no longer exists by the time the OpenURL IPC is handled, a normal
1238   // navigation is attempted.
1239   if (prerender_dispatcher_.get() &&
1240       prerender_dispatcher_->IsPrerenderURL(url)) {
1241     *send_referrer = true;
1242     return true;
1243   }
1244
1245 #if defined(ENABLE_EXTENSIONS)
1246   const extensions::RendererExtensionRegistry* extension_registry =
1247       extensions::RendererExtensionRegistry::Get();
1248
1249   // Determine if the new URL is an extension (excluding bookmark apps).
1250   const Extension* new_url_extension = extensions::GetNonBookmarkAppExtension(
1251       *extension_registry->GetMainThreadExtensionSet(), url);
1252   bool is_extension_url = !!new_url_extension;
1253
1254   // If the navigation would cross an app extent boundary, we also need
1255   // to defer to the browser to ensure process isolation.  This is not necessary
1256   // for server redirects, which will be transferred to a new process by the
1257   // browser process when they are ready to commit.  It is necessary for client
1258   // redirects, which won't be transferred in the same way.
1259   if (!is_server_redirect &&
1260       CrossesExtensionExtents(frame, url, is_extension_url,
1261                               is_initial_navigation)) {
1262     // Include the referrer in this case since we're going from a hosted web
1263     // page. (the packaged case is handled previously by the extension
1264     // navigation test)
1265     *send_referrer = true;
1266
1267     const Extension* extension =
1268         extension_registry->GetExtensionOrAppByURL(url);
1269     if (extension && extension->is_app()) {
1270       extensions::RecordAppLaunchType(
1271           extension_misc::APP_LAUNCH_CONTENT_NAVIGATION, extension->GetType());
1272     }
1273     return true;
1274   }
1275
1276   // If this is a reload, check whether it has the wrong process type.  We
1277   // should send it to the browser if it's an extension URL (e.g., hosted app)
1278   // in a normal process, or if it's a process for an extension that has been
1279   // uninstalled.  Without --site-per-process mode, we never fork processes for
1280   // subframes, so this check only makes sense for top-level frames.
1281   // TODO(alexmos,nasko): Figure out how this check should work when reloading
1282   // subframes in --site-per-process mode.
1283   if (!frame->parent() && frame->document().url() == url) {
1284     if (is_extension_url != IsStandaloneExtensionProcess())
1285       return true;
1286   }
1287 #endif  // defined(ENABLE_EXTENSIONS)
1288
1289   return false;
1290 }
1291
1292 bool ChromeContentRendererClient::WillSendRequest(
1293     blink::WebFrame* frame,
1294     ui::PageTransition transition_type,
1295     const GURL& url,
1296     const GURL& first_party_for_cookies,
1297     GURL* new_url) {
1298   // Check whether the request should be allowed. If not allowed, we reset the
1299   // URL to something invalid to prevent the request and cause an error.
1300 #if defined(ENABLE_EXTENSIONS)
1301   if (url.SchemeIs(extensions::kExtensionScheme) &&
1302       !resource_request_policy_->CanRequestResource(url, frame,
1303                                                     transition_type)) {
1304     *new_url = GURL(chrome::kExtensionInvalidRequestURL);
1305     return true;
1306   }
1307
1308   if (url.SchemeIs(extensions::kExtensionResourceScheme) &&
1309       !resource_request_policy_->CanRequestExtensionResourceScheme(url,
1310                                                                    frame)) {
1311     *new_url = GURL(chrome::kExtensionResourceInvalidRequestURL);
1312     return true;
1313   }
1314 #endif
1315
1316   const content::RenderView* render_view =
1317       content::RenderView::FromWebView(frame->view());
1318   SearchBox* search_box = SearchBox::Get(render_view);
1319   if (search_box && url.SchemeIs(chrome::kChromeSearchScheme)) {
1320     SearchBox::ImageSourceType type = SearchBox::NONE;
1321     if (url.host() == chrome::kChromeUIFaviconHost)
1322       type = SearchBox::FAVICON;
1323     else if (url.host() == chrome::kChromeUILargeIconHost)
1324       type = SearchBox::LARGE_ICON;
1325     else if (url.host() == chrome::kChromeUIFallbackIconHost)
1326       type = SearchBox::FALLBACK_ICON;
1327     else if (url.host() == chrome::kChromeUIThumbnailHost)
1328       type = SearchBox::THUMB;
1329     if (type != SearchBox::NONE)
1330       return search_box->GenerateImageURLFromTransientURL(url, type, new_url);
1331   }
1332
1333   return false;
1334 }
1335
1336 unsigned long long ChromeContentRendererClient::VisitedLinkHash(
1337     const char* canonical_url, size_t length) {
1338   return visited_link_slave_->ComputeURLFingerprint(canonical_url, length);
1339 }
1340
1341 bool ChromeContentRendererClient::IsLinkVisited(unsigned long long link_hash) {
1342   return visited_link_slave_->IsVisited(link_hash);
1343 }
1344
1345 blink::WebPrescientNetworking*
1346 ChromeContentRendererClient::GetPrescientNetworking() {
1347   return prescient_networking_dispatcher_.get();
1348 }
1349
1350 bool ChromeContentRendererClient::ShouldOverridePageVisibilityState(
1351     const content::RenderFrame* render_frame,
1352     blink::WebPageVisibilityState* override_state) {
1353   if (!prerender::PrerenderHelper::IsPrerendering(render_frame))
1354     return false;
1355
1356   *override_state = blink::WebPageVisibilityStatePrerender;
1357   return true;
1358 }
1359
1360 #if defined(ENABLE_EXTENSIONS)
1361 void ChromeContentRendererClient::SetExtensionDispatcherForTest(
1362     extensions::Dispatcher* extension_dispatcher) {
1363   extension_dispatcher_.reset(extension_dispatcher);
1364   permissions_policy_delegate_.reset(
1365       new extensions::RendererPermissionsPolicyDelegate(
1366           extension_dispatcher_.get()));
1367   RenderThread::Get()->RegisterExtension(
1368       extensions::SafeBuiltins::CreateV8Extension());
1369 }
1370
1371 extensions::Dispatcher*
1372 ChromeContentRendererClient::GetExtensionDispatcherForTest() {
1373   return extension_dispatcher_.get();
1374 }
1375
1376 bool ChromeContentRendererClient::CrossesExtensionExtents(
1377     blink::WebLocalFrame* frame,
1378     const GURL& new_url,
1379     bool is_extension_url,
1380     bool is_initial_navigation) {
1381   DCHECK(!frame->parent());
1382   GURL old_url(frame->document().url());
1383
1384   extensions::RendererExtensionRegistry* extension_registry =
1385       extensions::RendererExtensionRegistry::Get();
1386
1387   // If old_url is still empty and this is an initial navigation, then this is
1388   // a window.open operation.  We should look at the opener URL.  Note that the
1389   // opener is a local frame in this case.
1390   if (is_initial_navigation && old_url.is_empty() && frame->opener()) {
1391     WebLocalFrame* opener_frame = frame->opener()->toWebLocalFrame();
1392
1393     // If we're about to open a normal web page from a same-origin opener stuck
1394     // in an extension process, we want to keep it in process to allow the
1395     // opener to script it.
1396     WebDocument opener_document = opener_frame->document();
1397     WebSecurityOrigin opener_origin = opener_document.securityOrigin();
1398     bool opener_is_extension_url = !opener_origin.isUnique() &&
1399                                    extension_registry->GetExtensionOrAppByURL(
1400                                        opener_document.url()) != NULL;
1401     if (!is_extension_url &&
1402         !opener_is_extension_url &&
1403         IsStandaloneExtensionProcess() &&
1404         opener_origin.canRequest(WebURL(new_url)))
1405       return false;
1406
1407     // In all other cases, we want to compare against the URL that determines
1408     // the type of process.  In default Chrome, that's the URL of the opener's
1409     // top frame and not the opener frame itself.  In --site-per-process, we
1410     // can use the opener frame itself.
1411     // TODO(nick): Either wire this up to SiteIsolationPolicy, or to state on
1412     // |opener_frame|/its ancestors.
1413     if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1414             switches::kSitePerProcess))
1415       old_url = opener_frame->document().url();
1416     else
1417       old_url = opener_frame->top()->document().url();
1418   }
1419
1420   // Only consider keeping non-app URLs in an app process if this window
1421   // has an opener (in which case it might be an OAuth popup that tries to
1422   // script an iframe within the app).
1423   bool should_consider_workaround = !!frame->opener();
1424
1425   return extensions::CrossesExtensionProcessBoundary(
1426       *extension_registry->GetMainThreadExtensionSet(), old_url, new_url,
1427       should_consider_workaround);
1428 }
1429 #endif  // defined(ENABLE_EXTENSIONS)
1430
1431 #if defined(ENABLE_SPELLCHECK)
1432 void ChromeContentRendererClient::SetSpellcheck(SpellCheck* spellcheck) {
1433   RenderThread* thread = RenderThread::Get();
1434   if (spellcheck_.get() && thread)
1435     thread->RemoveObserver(spellcheck_.get());
1436   spellcheck_.reset(spellcheck);
1437   SpellCheckReplacer replacer(spellcheck_.get());
1438   content::RenderView::ForEach(&replacer);
1439   if (thread)
1440     thread->AddObserver(spellcheck_.get());
1441 }
1442 #endif
1443
1444 // static
1445 bool ChromeContentRendererClient::WasWebRequestUsedBySomeExtensions() {
1446 #if defined(ENABLE_EXTENSIONS)
1447   return g_current_client->extension_dispatcher_
1448       ->WasWebRequestUsedBySomeExtensions();
1449 #else
1450   return false;
1451 #endif
1452 }
1453
1454 const void* ChromeContentRendererClient::CreatePPAPIInterface(
1455     const std::string& interface_name) {
1456 #if defined(ENABLE_PLUGINS) && !defined(DISABLE_NACL)
1457   if (interface_name == PPB_NACL_PRIVATE_INTERFACE)
1458     return nacl::GetNaClPrivateInterface();
1459 #endif
1460   return NULL;
1461 }
1462
1463 bool ChromeContentRendererClient::IsExternalPepperPlugin(
1464     const std::string& module_name) {
1465   // TODO(bbudge) remove this when the trusted NaCl plugin has been removed.
1466   // We must defer certain plugin events for NaCl instances since we switch
1467   // from the in-process to the out-of-process proxy after instantiating them.
1468   return module_name == "Native Client";
1469 }
1470
1471 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
1472 bool ChromeContentRendererClient::IsExtensionOrSharedModuleWhitelisted(
1473     const GURL& url, const std::set<std::string>& whitelist) {
1474   const extensions::ExtensionSet* extension_set =
1475       extensions::RendererExtensionRegistry::Get()->GetMainThreadExtensionSet();
1476   return chrome::IsExtensionOrSharedModuleWhitelisted(url, extension_set,
1477       whitelist);
1478 }
1479 #endif
1480
1481 blink::WebSpeechSynthesizer*
1482 ChromeContentRendererClient::OverrideSpeechSynthesizer(
1483     blink::WebSpeechSynthesizerClient* client) {
1484   return new TtsDispatcher(client);
1485 }
1486
1487 bool ChromeContentRendererClient::AllowPepperMediaStreamAPI(
1488     const GURL& url) {
1489 #if !defined(OS_ANDROID)
1490   // Allow only the Hangouts app to use the MediaStream APIs. It's OK to check
1491   // the whitelist in the renderer, since we're only preventing access until
1492   // these APIs are public and stable.
1493   std::string url_host = url.host();
1494   if (url.SchemeIs("https") &&
1495       (base::EndsWith(url_host, "talkgadget.google.com",
1496                       base::CompareCase::INSENSITIVE_ASCII) ||
1497        base::EndsWith(url_host, "plus.google.com",
1498                       base::CompareCase::INSENSITIVE_ASCII) ||
1499        base::EndsWith(url_host, "plus.sandbox.google.com",
1500                       base::CompareCase::INSENSITIVE_ASCII)) &&
1501       base::StartsWith(url.path(), "/hangouts/",
1502                        base::CompareCase::INSENSITIVE_ASCII)) {
1503     return true;
1504   }
1505   // Allow access for tests.
1506   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1507           switches::kEnablePepperTesting)) {
1508     return true;
1509   }
1510 #endif  // !defined(OS_ANDROID)
1511   return false;
1512 }
1513
1514 void ChromeContentRendererClient::AddKeySystems(
1515     std::vector<media::KeySystemInfo>* key_systems) {
1516   AddChromeKeySystems(key_systems);
1517 }
1518
1519 bool ChromeContentRendererClient::ShouldReportDetailedMessageForSource(
1520     const base::string16& source) const {
1521 #if defined(ENABLE_EXTENSIONS)
1522   return extensions::IsSourceFromAnExtension(source);
1523 #else
1524   return false;
1525 #endif
1526 }
1527
1528 bool ChromeContentRendererClient::ShouldGatherSiteIsolationStats() const {
1529   // Site isolation stats are gathered currently for non-extension renderer
1530   // processes running a normal web page from the Internet.
1531   // TODO(nick): https://crbug.com/268640 Gather stats for extension processes
1532   // too; we would need to check the extension's manifest to know which sites
1533   // it's allowed to access.
1534 #if defined(ENABLE_EXTENSIONS)
1535   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
1536   return !command_line->HasSwitch(extensions::switches::kExtensionProcess);
1537 #else
1538   return true;
1539 #endif
1540 }
1541
1542 blink::WebWorkerContentSettingsClientProxy*
1543 ChromeContentRendererClient::CreateWorkerContentSettingsClientProxy(
1544     content::RenderFrame* render_frame,
1545     blink::WebFrame* frame) {
1546   return new WorkerContentSettingsClientProxy(render_frame, frame);
1547 }
1548
1549 bool ChromeContentRendererClient::IsPluginAllowedToUseDevChannelAPIs() {
1550 #if defined(ENABLE_PLUGINS)
1551   // Allow access for tests.
1552   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1553           switches::kEnablePepperTesting)) {
1554     return true;
1555   }
1556
1557   version_info::Channel channel = chrome::GetChannel();
1558   // Allow dev channel APIs to be used on "Canary", "Dev", and "Unknown"
1559   // releases of Chrome. Permitting "Unknown" allows these APIs to be used on
1560   // Chromium builds as well.
1561   return channel <= version_info::Channel::DEV;
1562 #else
1563   return false;
1564 #endif
1565 }
1566
1567 bool ChromeContentRendererClient::IsPluginAllowedToUseCameraDeviceAPI(
1568     const GURL& url) {
1569 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
1570   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1571           switches::kEnablePepperTesting))
1572     return true;
1573
1574   if (IsExtensionOrSharedModuleWhitelisted(url, allowed_camera_device_origins_))
1575     return true;
1576 #endif
1577
1578   return false;
1579 }
1580
1581 bool ChromeContentRendererClient::IsPluginAllowedToUseCompositorAPI(
1582     const GURL& url) {
1583 #if defined(ENABLE_PLUGINS) && defined(ENABLE_EXTENSIONS)
1584   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1585           switches::kEnablePepperTesting))
1586     return true;
1587   if (IsExtensionOrSharedModuleWhitelisted(url, allowed_compositor_origins_))
1588     return true;
1589
1590   version_info::Channel channel = chrome::GetChannel();
1591   return channel <= version_info::Channel::DEV;
1592 #else
1593   return false;
1594 #endif
1595 }
1596
1597 content::BrowserPluginDelegate*
1598 ChromeContentRendererClient::CreateBrowserPluginDelegate(
1599     content::RenderFrame* render_frame,
1600     const std::string& mime_type,
1601     const GURL& original_url) {
1602 #if defined(ENABLE_EXTENSIONS)
1603   if (mime_type == content::kBrowserPluginMimeType) {
1604     return new extensions::ExtensionsGuestViewContainer(render_frame);
1605   } else {
1606     return new extensions::MimeHandlerViewContainer(
1607         render_frame, mime_type, original_url);
1608   }
1609 #else
1610   return NULL;
1611 #endif
1612 }
1613
1614 void ChromeContentRendererClient::RecordRappor(const std::string& metric,
1615                                                const std::string& sample) {
1616   RenderThread::Get()->Send(new ChromeViewHostMsg_RecordRappor(metric, sample));
1617 }
1618
1619 void ChromeContentRendererClient::RecordRapporURL(const std::string& metric,
1620                                                   const GURL& url) {
1621   RenderThread::Get()->Send(new ChromeViewHostMsg_RecordRapporURL(metric, url));
1622 }
1623
1624 scoped_ptr<blink::WebAppBannerClient>
1625 ChromeContentRendererClient::CreateAppBannerClient(
1626     content::RenderFrame* render_frame) {
1627   return scoped_ptr<blink::WebAppBannerClient>(
1628       new AppBannerClient(render_frame));
1629 }
1630
1631 void ChromeContentRendererClient::AddImageContextMenuProperties(
1632     const blink::WebURLResponse& response,
1633     std::map<std::string, std::string>* properties) {
1634   DCHECK(properties);
1635   WebString header_key(ASCIIToUTF16(
1636       data_reduction_proxy::chrome_proxy_header()));
1637   if (!response.httpHeaderField(header_key).isNull() &&
1638       response.httpHeaderField(header_key).utf8().find(
1639           data_reduction_proxy::chrome_proxy_lo_fi_directive()) !=
1640               std::string::npos) {
1641     (*properties)[data_reduction_proxy::chrome_proxy_header()] =
1642         data_reduction_proxy::chrome_proxy_lo_fi_directive();
1643   }
1644 }
1645
1646 void
1647 ChromeContentRendererClient::DidInitializeServiceWorkerContextOnWorkerThread(
1648     v8::Local<v8::Context> context,
1649     const GURL& url) {
1650 #if defined(ENABLE_EXTENSIONS)
1651   extensions::Dispatcher::DidInitializeServiceWorkerContextOnWorkerThread(
1652       context, url);
1653 #endif
1654 }
1655
1656 void ChromeContentRendererClient::WillDestroyServiceWorkerContextOnWorkerThread(
1657     const GURL& url) {
1658 #if defined(ENABLE_EXTENSIONS)
1659   extensions::Dispatcher::WillDestroyServiceWorkerContextOnWorkerThread(url);
1660 #endif
1661 }