Chromecast: move link-time decisions to inheritance-based Content*Client.

chromecast/browser/cast_content_browser_client.h

 // 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.
 
 #ifndef CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_
 #define CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 31 matching lines @@
 
 class CastContentBrowserClient: public content::ContentBrowserClient {
  public:
   // Creates an implementation of CastContentBrowserClient. Platform should
   // link in an implementation as needed.
   static scoped_ptr<CastContentBrowserClient> Create();
 
   ~CastContentBrowserClient() override;
 
   // Appends extra command line arguments before launching a new process.
-  void PlatformAppendExtraCommandLineSwitches(base::CommandLine* command_line);
+  virtual void AppendExtraCommandLineSwitches(base::CommandLine* command_line);
 
-  // Returns any BrowserMessageFilters from the platform implementation that
-  // should be added when launching a new render process.
-  std::vector<scoped_refptr<content::BrowserMessageFilter>>
-  PlatformGetBrowserMessageFilters();
+  // Returns any BrowserMessageFilters that should be added when launching a
+  // new render process.
+  virtual std::vector<scoped_refptr<content::BrowserMessageFilter>>
+  GetBrowserMessageFilters();
+
+  // Provide an AudioManagerFactory instance for WebAudio playback.
+  virtual scoped_ptr<::media::AudioManagerFactory> CreateAudioManagerFactory();
 
 #if !defined(OS_ANDROID)
   // Creates a MediaPipelineDevice (CMA backend) for media playback, called
   // once per media player instance.
-  scoped_ptr<media::MediaPipelineDevice> PlatformCreateMediaPipelineDevice(
+  virtual scoped_ptr<media::MediaPipelineDevice> CreateMediaPipelineDevice(
       const media::MediaPipelineDeviceParams& params);
 #endif
 
   // content::ContentBrowserClient implementation:
   content::BrowserMainParts* CreateBrowserMainParts(
       const content::MainFunctionParams& parameters) override;
   void RenderProcessWillLaunch(content::RenderProcessHost* host) override;
   net::URLRequestContextGetter* CreateRequestContext(
       content::BrowserContext* browser_context,
       content::ProtocolHandlerMap* protocol_handlers,
@@ skipping 55 matching lines @@
   CastContentBrowserClient();
 
  private:
   void AddNetworkHintsMessageFilter(int render_process_id,
                                     net::URLRequestContext* context);
 
   net::X509Certificate* SelectClientCertificateOnIOThread(
       GURL requesting_url,
       int render_process_id);
 
-  scoped_ptr<::media::AudioManagerFactory> PlatformCreateAudioManagerFactory();
-
 #if !defined(OS_ANDROID)
   // Returns the crash signal FD corresponding to the current process type.
   int GetCrashSignalFD(const base::CommandLine& command_line);
 
   // Creates a CrashHandlerHost instance for the given process type.
   breakpad::CrashHandlerHostLinux* CreateCrashHandlerHost(
       const std::string& process_type);
 
   // A static cache to hold crash_handlers for each process_type
   std::map<std::string, breakpad::CrashHandlerHostLinux*> crash_handlers_;
 #endif
 
   base::ScopedFD v8_natives_fd_;
   base::ScopedFD v8_snapshot_fd_;
   bool natives_fd_exists() { return v8_natives_fd_ != -1; }
   bool snapshot_fd_exists() { return v8_snapshot_fd_ != -1; }
 
   scoped_ptr<URLRequestContextFactory> url_request_context_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CastContentBrowserClient);
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_