[chrome.displaySource] Integrate audio encoders into media pipeline.

extensions/renderer/api/display_source/wifi_display/wifi_display_media_manager.h

 // Copyright 2016 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 EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_MEDIA_MANAGER_H_
 #define EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_MEDIA_MANAGER_H_
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "extensions/common/mojo/wifi_display_session_service.mojom.h"
 #include "extensions/renderer/api/display_source/wifi_display/wifi_display_media_packetizer.h"
 #include "extensions/renderer/api/display_source/wifi_display/wifi_display_video_encoder.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
 #include "third_party/wds/src/libwds/public/media_manager.h"
 
 namespace content {
 class ServiceRegistry;
 }  // namespace content
 
 namespace extensions {
+class WiFiDisplayAudioSink;
 class WiFiDisplayVideoSink;
 class WiFiDisplayMediaPipeline;
 class WiFiDisplaySessionService;
 
 class WiFiDisplayMediaManager : public wds::SourceMediaManager {
  public:
   using ErrorCallback = base::Callback<void(const std::string&)>;
 
   WiFiDisplayMediaManager(
       const blink::WebMediaStreamTrack& video_track,
@@ skipping 32 matching lines @@
   void OnPlayerCreated(std::unique_ptr<WiFiDisplayMediaPipeline> player);
   void OnMediaPipelineInitialized(bool success);
   void RegisterMediaService(
        const scoped_refptr<base::SingleThreadTaskRunner>& main_runner,
        WiFiDisplayMediaServiceRequest service,
        const base::Closure& on_completed);
   void ConnectToRemoteService(WiFiDisplayMediaServiceRequest request);
   blink::WebMediaStreamTrack video_track_;
   blink::WebMediaStreamTrack audio_track_;
 
+  std::unique_ptr<WiFiDisplayAudioSink> audio_sink_;
   std::unique_ptr<WiFiDisplayVideoSink> video_sink_;
 
   content::ServiceRegistry* service_registry_;
   std::string sink_ip_address_;
   std::pair<int, int> sink_rtp_ports_;
   wds::H264VideoFormat optimal_video_format_;
   wds::AudioCodec optimal_audio_codec_;
 
   WiFiDisplayVideoEncoder::InitParameters video_encoder_parameters_;
   WiFiDisplayMediaPipeline* player_;  // Owned on IO thread.
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
   ErrorCallback error_callback_;
   bool is_playing_;
   bool is_initialized_;
   mutable std::string session_id_;  // Lazily initialized.
 
   base::WeakPtrFactory<WiFiDisplayMediaManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WiFiDisplayMediaManager);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_MEDIA_MANAGER_H_