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