Remove dependency on AudioStub in ConnectionToClient

remoting/protocol/webrtc_connection_to_client.h

 // Copyright 2015 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 REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_CLIENT_H_
 #define REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_CLIENT_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 25 matching lines @@
   ~WebrtcConnectionToClient() override;
 
   // ConnectionToClient interface.
   void SetEventHandler(
       ConnectionToClient::EventHandler* event_handler) override;
   Session* session() override;
   void Disconnect(ErrorCode error) override;
   void OnInputEventReceived(int64_t timestamp) override;
   std::unique_ptr<VideoStream> StartVideoStream(
       std::unique_ptr<webrtc::DesktopCapturer> desktop_capturer) override;
-  AudioStub* audio_stub() override;
+  std::unique_ptr<AudioStream> StartAudioStream(
+      std::unique_ptr<AudioSource> audio_source) override;
   ClientStub* client_stub() override;
   void set_clipboard_stub(ClipboardStub* clipboard_stub) override;
   void set_host_stub(HostStub* host_stub) override;
   void set_input_stub(InputStub* input_stub) override;
 
   // Session::EventHandler interface.
   void OnSessionStateChange(Session::State state) override;
 
   // WebrtcTransport::EventHandler interface
   void OnWebrtcTransportConnecting() override;
@@ skipping 27 matching lines @@
   std::unique_ptr<HostEventDispatcher> event_dispatcher_;
   base::WeakPtrFactory<WebrtcConnectionToClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebrtcConnectionToClient);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_CLIENT_H_