| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/extensions/chrome_content_browser_client_extensions_part.h" |
| |
| #include <stddef.h> |
| |
| #include <set> |
| |
| #include "base/command_line.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/extensions/extension_service.h" |
| #include "chrome/browser/extensions/extension_web_ui.h" |
| #include "chrome/browser/extensions/extension_webkit_preferences.h" |
| #include "chrome/browser/media_galleries/fileapi/media_file_system_backend.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/browser/profiles/profile_io_data.h" |
| #include "chrome/browser/profiles/profile_manager.h" |
| #include "chrome/browser/renderer_host/chrome_extension_message_filter.h" |
| #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h" |
| #include "chrome/common/chrome_constants.h" |
| #include "chrome/common/chrome_switches.h" |
| #include "chrome/common/extensions/extension_process_policy.h" |
| #include "components/guest_view/browser/guest_view_message_filter.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/browser_url_handler.h" |
| #include "content/public/browser/render_process_host.h" |
| #include "content/public/browser/render_view_host.h" |
| #include "content/public/browser/site_instance.h" |
| #include "content/public/browser/web_contents.h" |
| #include "content/public/common/content_switches.h" |
| #include "extensions/browser/api/web_request/web_request_api.h" |
| #include "extensions/browser/api/web_request/web_request_api_helpers.h" |
| #include "extensions/browser/extension_host.h" |
| #include "extensions/browser/extension_message_filter.h" |
| #include "extensions/browser/extension_registry.h" |
| #include "extensions/browser/extension_system.h" |
| #include "extensions/browser/guest_view/extensions_guest_view_message_filter.h" |
| #include "extensions/browser/guest_view/web_view/web_view_renderer_state.h" |
| #include "extensions/browser/info_map.h" |
| #include "extensions/browser/io_thread_extension_message_filter.h" |
| #include "extensions/browser/view_type_utils.h" |
| #include "extensions/common/constants.h" |
| #include "extensions/common/manifest_constants.h" |
| #include "extensions/common/manifest_handlers/app_isolation_info.h" |
| #include "extensions/common/manifest_handlers/background_info.h" |
| #include "extensions/common/manifest_handlers/web_accessible_resources_info.h" |
| #include "extensions/common/permissions/permissions_data.h" |
| #include "extensions/common/switches.h" |
| |
| using content::BrowserContext; |
| using content::BrowserThread; |
| using content::BrowserURLHandler; |
| using content::RenderViewHost; |
| using content::SiteInstance; |
| using content::WebContents; |
| using content::WebPreferences; |
| |
| namespace extensions { |
| |
| namespace { |
| |
| // Used by the GetPrivilegeRequiredByUrl() and GetProcessPrivilege() functions |
| // below. Extension, and isolated apps require different privileges to be |
| // granted to their RenderProcessHosts. This classification allows us to make |
| // sure URLs are served by hosts with the right set of privileges. |
| enum RenderProcessHostPrivilege { |
| PRIV_NORMAL, |
| PRIV_HOSTED, |
| PRIV_ISOLATED, |
| PRIV_EXTENSION, |
| }; |
| |
| RenderProcessHostPrivilege GetPrivilegeRequiredByUrl( |
| const GURL& url, |
| ExtensionRegistry* registry) { |
| // Default to a normal renderer cause it is lower privileged. This should only |
| // occur if the URL on a site instance is either malformed, or uninitialized. |
| // If it is malformed, then there is no need for better privileges anyways. |
| // If it is uninitialized, but eventually settles on being an a scheme other |
| // than normal webrenderer, the navigation logic will correct us out of band |
| // anyways. |
| if (!url.is_valid()) |
| return PRIV_NORMAL; |
| |
| if (!url.SchemeIs(kExtensionScheme)) |
| return PRIV_NORMAL; |
| |
| const Extension* extension = |
| registry->enabled_extensions().GetByID(url.host()); |
| if (extension && AppIsolationInfo::HasIsolatedStorage(extension)) |
| return PRIV_ISOLATED; |
| if (extension && extension->is_hosted_app()) |
| return PRIV_HOSTED; |
| return PRIV_EXTENSION; |
| } |
| |
| RenderProcessHostPrivilege GetProcessPrivilege( |
| content::RenderProcessHost* process_host, |
| ProcessMap* process_map, |
| ExtensionRegistry* registry) { |
| std::set<std::string> extension_ids = |
| process_map->GetExtensionsInProcess(process_host->GetID()); |
| if (extension_ids.empty()) |
| return PRIV_NORMAL; |
| |
| for (const std::string& extension_id : extension_ids) { |
| const Extension* extension = |
| registry->enabled_extensions().GetByID(extension_id); |
| if (extension && AppIsolationInfo::HasIsolatedStorage(extension)) |
| return PRIV_ISOLATED; |
| if (extension && extension->is_hosted_app()) |
| return PRIV_HOSTED; |
| } |
| |
| return PRIV_EXTENSION; |
| } |
| |
| } // namespace |
| |
| ChromeContentBrowserClientExtensionsPart:: |
| ChromeContentBrowserClientExtensionsPart() { |
| } |
| |
| ChromeContentBrowserClientExtensionsPart:: |
| ~ChromeContentBrowserClientExtensionsPart() { |
| } |
| |
| // static |
| GURL ChromeContentBrowserClientExtensionsPart::GetEffectiveURL( |
| Profile* profile, const GURL& url) { |
| // If the input |url| is part of an installed app, the effective URL is an |
| // extension URL with the ID of that extension as the host. This has the |
| // effect of grouping apps together in a common SiteInstance. |
| ExtensionRegistry* registry = ExtensionRegistry::Get(profile); |
| if (!registry) |
| return url; |
| |
| const Extension* extension = |
| registry->enabled_extensions().GetHostedAppByURL(url); |
| if (!extension) |
| return url; |
| |
| // Bookmark apps do not use the hosted app process model, and should be |
| // treated as normal URLs. |
| if (extension->from_bookmark()) |
| return url; |
| |
| // If the URL is part of an extension's web extent, convert it to an |
| // extension URL. |
| return extension->GetResourceURL(url.path()); |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::ShouldUseProcessPerSite( |
| Profile* profile, const GURL& effective_url) { |
| if (!effective_url.SchemeIs(kExtensionScheme)) |
| return false; |
| |
| ExtensionRegistry* registry = ExtensionRegistry::Get(profile); |
| if (!registry) |
| return false; |
| |
| const Extension* extension = |
| registry->enabled_extensions().GetByID(effective_url.host()); |
| if (!extension) |
| return false; |
| |
| // If the URL is part of a hosted app that does not have the background |
| // permission, or that does not allow JavaScript access to the background |
| // page, we want to give each instance its own process to improve |
| // responsiveness. |
| if (extension->GetType() == Manifest::TYPE_HOSTED_APP) { |
| if (!extension->permissions_data()->HasAPIPermission( |
| APIPermission::kBackground) || |
| !BackgroundInfo::AllowJSAccess(extension)) { |
| return false; |
| } |
| } |
| |
| // Hosted apps that have script access to their background page must use |
| // process per site, since all instances can make synchronous calls to the |
| // background window. Other extensions should use process per site as well. |
| return true; |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::DoesSiteRequireDedicatedProcess( |
| content::BrowserContext* browser_context, |
| const GURL& effective_site_url) { |
| if (effective_site_url.SchemeIs(extensions::kExtensionScheme)) { |
| // --isolate-extensions should isolate extensions, except for hosted apps. |
| // Isolating hosted apps is a good idea, but ought to be a separate knob. |
| if (IsIsolateExtensionsEnabled()) { |
| const Extension* extension = |
| ExtensionRegistry::Get(browser_context) |
| ->enabled_extensions() |
| .GetExtensionOrAppByURL(effective_site_url); |
| if (extension && !extension->is_hosted_app()) |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::ShouldLockToOrigin( |
| content::BrowserContext* browser_context, |
| const GURL& effective_site_url) { |
| // https://crbug.com/160576 workaround: Origin lock to the chrome-extension:// |
| // scheme for a hosted app would kill processes on legitimate requests for the |
| // app's cookies. |
| if (effective_site_url.SchemeIs(extensions::kExtensionScheme)) { |
| const Extension* extension = |
| ExtensionRegistry::Get(browser_context) |
| ->enabled_extensions() |
| .GetExtensionOrAppByURL(effective_site_url); |
| if (extension && extension->is_hosted_app()) |
| return false; |
| |
| // http://crbug.com/600441 workaround: Extension process reuse, implemented |
| // in ShouldTryToUseExistingProcessHost(), means that extension processes |
| // aren't always actually dedicated to a single origin, even in |
| // --isolate-extensions. TODO(nick): Fix this. |
| if (!base::CommandLine::ForCurrentProcess()->HasSwitch( |
| ::switches::kSitePerProcess)) |
| return false; |
| } |
| return true; |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::CanCommitURL( |
| content::RenderProcessHost* process_host, const GURL& url) { |
| DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| |
| // We need to let most extension URLs commit in any process, since this can |
| // be allowed due to web_accessible_resources. Most hosted app URLs may also |
| // load in any process (e.g., in an iframe). However, the Chrome Web Store |
| // cannot be loaded in iframes and should never be requested outside its |
| // process. |
| ExtensionRegistry* registry = |
| ExtensionRegistry::Get(process_host->GetBrowserContext()); |
| if (!registry) |
| return true; |
| |
| const Extension* new_extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL(url); |
| if (new_extension && new_extension->is_hosted_app() && |
| new_extension->id() == kWebStoreAppId && |
| !ProcessMap::Get(process_host->GetBrowserContext()) |
| ->Contains(new_extension->id(), process_host->GetID())) { |
| return false; |
| } |
| return true; |
| } |
| |
| bool ChromeContentBrowserClientExtensionsPart::IsIllegalOrigin( |
| content::ResourceContext* resource_context, |
| int child_process_id, |
| const GURL& origin) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| // Consider non-extension URLs safe; they will be checked elsewhere. |
| if (!origin.SchemeIs(kExtensionScheme)) |
| return false; |
| |
| // If there is no extension installed for the URL, it couldn't have committed. |
| // (If the extension was recently uninstalled, the tab would have closed.) |
| ProfileIOData* io_data = ProfileIOData::FromResourceContext(resource_context); |
| InfoMap* extension_info_map = io_data->GetExtensionInfoMap(); |
| const Extension* extension = |
| extension_info_map->extensions().GetExtensionOrAppByURL(origin); |
| if (!extension) |
| return true; |
| |
| // Check for platform app origins. These can only be committed by the app |
| // itself, or by one if its guests if there are accessible_resources. |
| const ProcessMap& process_map = extension_info_map->process_map(); |
| if (extension->is_platform_app() && |
| !process_map.Contains(extension->id(), child_process_id)) { |
| // This is a platform app origin not in the app's own process. If there are |
| // no accessible resources, this is illegal. |
| if (!extension->GetManifestData(manifest_keys::kWebviewAccessibleResources)) |
| return true; |
| |
| // If there are accessible resources, the origin is only legal if the given |
| // process is a guest of the app. |
| std::string owner_extension_id; |
| int owner_process_id; |
| WebViewRendererState::GetInstance()->GetOwnerInfo( |
| child_process_id, &owner_process_id, &owner_extension_id); |
| const Extension* owner_extension = |
| extension_info_map->extensions().GetByID(owner_extension_id); |
| return !owner_extension || owner_extension != extension; |
| } |
| |
| // With only the origin and not the full URL, we don't have enough information |
| // to validate hosted apps or web_accessible_resources in normal extensions. |
| // Assume they're legal. |
| return false; |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::IsSuitableHost( |
| Profile* profile, |
| content::RenderProcessHost* process_host, |
| const GURL& site_url) { |
| DCHECK(profile); |
| |
| ExtensionRegistry* registry = ExtensionRegistry::Get(profile); |
| ProcessMap* process_map = ProcessMap::Get(profile); |
| |
| // These may be NULL during tests. In that case, just assume any site can |
| // share any host. |
| if (!registry || !process_map) |
| return true; |
| |
| // Otherwise, just make sure the process privilege matches the privilege |
| // required by the site. |
| RenderProcessHostPrivilege privilege_required = |
| GetPrivilegeRequiredByUrl(site_url, registry); |
| return GetProcessPrivilege(process_host, process_map, registry) == |
| privilege_required; |
| } |
| |
| // static |
| bool |
| ChromeContentBrowserClientExtensionsPart::ShouldTryToUseExistingProcessHost( |
| Profile* profile, const GURL& url) { |
| // This function is trying to limit the amount of processes used by extensions |
| // with background pages. It uses a globally set percentage of processes to |
| // run such extensions and if the limit is exceeded, it returns true, to |
| // indicate to the content module to group extensions together. |
| ExtensionRegistry* registry = |
| profile ? ExtensionRegistry::Get(profile) : NULL; |
| if (!registry) |
| return false; |
| |
| // We have to have a valid extension with background page to proceed. |
| const Extension* extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL(url); |
| if (!extension) |
| return false; |
| if (!BackgroundInfo::HasBackgroundPage(extension)) |
| return false; |
| |
| std::set<int> process_ids; |
| size_t max_process_count = |
| content::RenderProcessHost::GetMaxRendererProcessCount(); |
| |
| // Go through all profiles to ensure we have total count of extension |
| // processes containing background pages, otherwise one profile can |
| // starve the other. |
| std::vector<Profile*> profiles = g_browser_process->profile_manager()-> |
| GetLoadedProfiles(); |
| for (size_t i = 0; i < profiles.size(); ++i) { |
| ProcessManager* epm = ProcessManager::Get(profiles[i]); |
| for (ExtensionHost* host : epm->background_hosts()) |
| process_ids.insert(host->render_process_host()->GetID()); |
| } |
| |
| return (process_ids.size() > |
| (max_process_count * chrome::kMaxShareOfExtensionProcesses)); |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart:: |
| ShouldSwapBrowsingInstancesForNavigation(SiteInstance* site_instance, |
| const GURL& current_url, |
| const GURL& new_url) { |
| // If we don't have an ExtensionRegistry, then rely on the SiteInstance logic |
| // in RenderFrameHostManager to decide when to swap. |
| ExtensionRegistry* registry = |
| ExtensionRegistry::Get(site_instance->GetBrowserContext()); |
| if (!registry) |
| return false; |
| |
| // We must use a new BrowsingInstance (forcing a process swap and disabling |
| // scripting by existing tabs) if one of the URLs is an extension and the |
| // other is not the exact same extension. |
| // |
| // We ignore hosted apps here so that other tabs in their BrowsingInstance can |
| // use postMessage with them. (The exception is the Chrome Web Store, which |
| // is a hosted app that requires its own BrowsingInstance.) Navigations |
| // to/from a hosted app will still trigger a SiteInstance swap in |
| // RenderFrameHostManager. |
| const Extension* current_extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL(current_url); |
| if (current_extension && current_extension->is_hosted_app() && |
| current_extension->id() != kWebStoreAppId) |
| current_extension = NULL; |
| |
| const Extension* new_extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL(new_url); |
| if (new_extension && new_extension->is_hosted_app() && |
| new_extension->id() != kWebStoreAppId) |
| new_extension = NULL; |
| |
| // First do a process check. We should force a BrowsingInstance swap if the |
| // current process doesn't know about new_extension, even if current_extension |
| // is somehow the same as new_extension. |
| ProcessMap* process_map = ProcessMap::Get(site_instance->GetBrowserContext()); |
| if (new_extension && |
| site_instance->HasProcess() && |
| !process_map->Contains( |
| new_extension->id(), site_instance->GetProcess()->GetID())) |
| return true; |
| |
| // Otherwise, swap BrowsingInstances if current_extension and new_extension |
| // differ. |
| return current_extension != new_extension; |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::ShouldSwapProcessesForRedirect( |
| content::ResourceContext* resource_context, |
| const GURL& current_url, |
| const GURL& new_url) { |
| ProfileIOData* io_data = ProfileIOData::FromResourceContext(resource_context); |
| return CrossesExtensionProcessBoundary( |
| io_data->GetExtensionInfoMap()->extensions(), |
| current_url, new_url, false); |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::AllowServiceWorker( |
| const GURL& scope, |
| const GURL& first_party_url, |
| content::ResourceContext* context, |
| int render_process_id, |
| int render_frame_id) { |
| // We only care about extension urls. |
| // TODO(devlin): Also address chrome-extension-resource. |
| if (!first_party_url.SchemeIs(kExtensionScheme)) |
| return true; |
| |
| ProfileIOData* io_data = ProfileIOData::FromResourceContext(context); |
| InfoMap* extension_info_map = io_data->GetExtensionInfoMap(); |
| const Extension* extension = |
| extension_info_map->extensions().GetExtensionOrAppByURL(first_party_url); |
| // Don't allow a service worker for an extension url with no extension (this |
| // could happen in the case of, e.g., an unloaded extension). |
| return extension != nullptr; |
| } |
| |
| // static |
| bool ChromeContentBrowserClientExtensionsPart::ShouldAllowOpenURL( |
| content::SiteInstance* site_instance, |
| const GURL& from_url, |
| const GURL& to_url, |
| bool* result) { |
| DCHECK(result); |
| |
| // Do not allow pages from the web or other extensions navigate to |
| // non-web-accessible extension resources. |
| if (to_url.SchemeIs(kExtensionScheme) && |
| (from_url.SchemeIsHTTPOrHTTPS() || from_url.SchemeIs(kExtensionScheme))) { |
| Profile* profile = Profile::FromBrowserContext( |
| site_instance->GetProcess()->GetBrowserContext()); |
| ExtensionRegistry* registry = ExtensionRegistry::Get(profile); |
| if (!registry) { |
| *result = true; |
| return true; |
| } |
| const Extension* extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL(to_url); |
| if (!extension) { |
| *result = true; |
| return true; |
| } |
| const Extension* from_extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL( |
| site_instance->GetSiteURL()); |
| if (from_extension && from_extension->id() == extension->id()) { |
| *result = true; |
| return true; |
| } |
| |
| if (!WebAccessibleResourcesInfo::IsResourceWebAccessible( |
| extension, to_url.path())) { |
| *result = false; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart::RenderProcessWillLaunch( |
| content::RenderProcessHost* host) { |
| int id = host->GetID(); |
| Profile* profile = Profile::FromBrowserContext(host->GetBrowserContext()); |
| |
| host->AddFilter(new ChromeExtensionMessageFilter(id, profile)); |
| host->AddFilter(new ExtensionMessageFilter(id, profile)); |
| host->AddFilter(new IOThreadExtensionMessageFilter(id, profile)); |
| host->AddFilter(new ExtensionsGuestViewMessageFilter(id, profile)); |
| extension_web_request_api_helpers::SendExtensionWebRequestStatusToHost(host); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart::SiteInstanceGotProcess( |
| SiteInstance* site_instance) { |
| BrowserContext* context = site_instance->GetProcess()->GetBrowserContext(); |
| ExtensionRegistry* registry = ExtensionRegistry::Get(context); |
| if (!registry) |
| return; |
| |
| const Extension* extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL( |
| site_instance->GetSiteURL()); |
| if (!extension) |
| return; |
| |
| ProcessMap::Get(context)->Insert(extension->id(), |
| site_instance->GetProcess()->GetID(), |
| site_instance->GetId()); |
| |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&InfoMap::RegisterExtensionProcess, |
| ExtensionSystem::Get(context)->info_map(), extension->id(), |
| site_instance->GetProcess()->GetID(), site_instance->GetId())); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart::SiteInstanceDeleting( |
| SiteInstance* site_instance) { |
| BrowserContext* context = site_instance->GetBrowserContext(); |
| ExtensionRegistry* registry = ExtensionRegistry::Get(context); |
| if (!registry) |
| return; |
| |
| const Extension* extension = |
| registry->enabled_extensions().GetExtensionOrAppByURL( |
| site_instance->GetSiteURL()); |
| if (!extension) |
| return; |
| |
| ProcessMap::Get(context)->Remove(extension->id(), |
| site_instance->GetProcess()->GetID(), |
| site_instance->GetId()); |
| |
| BrowserThread::PostTask( |
| BrowserThread::IO, FROM_HERE, |
| base::Bind(&InfoMap::UnregisterExtensionProcess, |
| ExtensionSystem::Get(context)->info_map(), extension->id(), |
| site_instance->GetProcess()->GetID(), site_instance->GetId())); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart::OverrideWebkitPrefs( |
| RenderViewHost* rvh, |
| WebPreferences* web_prefs) { |
| const ExtensionRegistry* registry = |
| ExtensionRegistry::Get(rvh->GetProcess()->GetBrowserContext()); |
| if (!registry) |
| return; |
| |
| // Note: it's not possible for kExtensionsScheme to change during the lifetime |
| // of the process. |
| // |
| // Ensure that we are only granting extension preferences to URLs with |
| // the correct scheme. Without this check, chrome-guest:// schemes used by |
| // webview tags as well as hosts that happen to match the id of an |
| // installed extension would get the wrong preferences. |
| const GURL& site_url = rvh->GetSiteInstance()->GetSiteURL(); |
| if (!site_url.SchemeIs(kExtensionScheme)) |
| return; |
| |
| WebContents* web_contents = WebContents::FromRenderViewHost(rvh); |
| ViewType view_type = GetViewType(web_contents); |
| const Extension* extension = |
| registry->enabled_extensions().GetByID(site_url.host()); |
| extension_webkit_preferences::SetPreferences(extension, view_type, web_prefs); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart::BrowserURLHandlerCreated( |
| BrowserURLHandler* handler) { |
| handler->AddHandlerPair(&ExtensionWebUI::HandleChromeURLOverride, |
| BrowserURLHandler::null_handler()); |
| handler->AddHandlerPair(BrowserURLHandler::null_handler(), |
| &ExtensionWebUI::HandleChromeURLOverrideReverse); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart:: |
| GetAdditionalAllowedSchemesForFileSystem( |
| std::vector<std::string>* additional_allowed_schemes) { |
| additional_allowed_schemes->push_back(kExtensionScheme); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart::GetURLRequestAutoMountHandlers( |
| std::vector<storage::URLRequestAutoMountHandler>* handlers) { |
| handlers->push_back( |
| base::Bind(MediaFileSystemBackend::AttemptAutoMountForURLRequest)); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart::GetAdditionalFileSystemBackends( |
| content::BrowserContext* browser_context, |
| const base::FilePath& storage_partition_path, |
| ScopedVector<storage::FileSystemBackend>* additional_backends) { |
| base::SequencedWorkerPool* pool = content::BrowserThread::GetBlockingPool(); |
| additional_backends->push_back(new MediaFileSystemBackend( |
| storage_partition_path, |
| pool->GetSequencedTaskRunner( |
| pool->GetNamedSequenceToken( |
| MediaFileSystemBackend::kMediaTaskRunnerName)).get())); |
| |
| additional_backends->push_back(new sync_file_system::SyncFileSystemBackend( |
| Profile::FromBrowserContext(browser_context))); |
| } |
| |
| void ChromeContentBrowserClientExtensionsPart:: |
| AppendExtraRendererCommandLineSwitches(base::CommandLine* command_line, |
| content::RenderProcessHost* process, |
| Profile* profile) { |
| if (!process) |
| return; |
| DCHECK(profile); |
| if (ProcessMap::Get(profile)->Contains(process->GetID())) { |
| command_line->AppendSwitch(switches::kExtensionProcess); |
| #if defined(ENABLE_WEBRTC) |
| command_line->AppendSwitch(::switches::kEnableWebRtcHWH264Encoding); |
| #endif |
| if (base::CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kEnableMojoSerialService)) { |
| command_line->AppendSwitch(switches::kEnableMojoSerialService); |
| } |
| } |
| } |
| |
| } // namespace extensions |