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