Remove dependency on AudioStub in ConnectionToClient

remoting/protocol/audio_source.h

Index: remoting/protocol/audio_source.h
diff --git a/remoting/host/audio_capturer.h b/remoting/protocol/audio_source.h
similarity index 53%
copy from remoting/host/audio_capturer.h
copy to remoting/protocol/audio_source.h
index c79949903ca892247fae2bcf84b459566dcf366d..d36d378b4f8bb3781b7199c76436f0518dc8231b 100644
--- a/remoting/host/audio_capturer.h
+++ b/remoting/protocol/audio_source.h
@@ -1,9 +1,9 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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 REMOTING_HOST_AUDIO_CAPTURER_H_
-#define REMOTING_HOST_AUDIO_CAPTURER_H_
+#ifndef REMOTING_PROTOCOL_AUDIO_SOURCE_H_
+#define REMOTING_PROTOCOL_AUDIO_SOURCE_H_
 
 #include <memory>
 
@@ -13,26 +13,22 @@ namespace remoting {
 
 class AudioPacket;
 
-class AudioCapturer {
+namespace protocol {
+
+class AudioSource {
  public:
   typedef base::Callback<void(std::unique_ptr<AudioPacket> packet)>
       PacketCapturedCallback;
 
-  virtual ~AudioCapturer() {}
-
-  // Returns true if audio capturing is supported on this platform. If this
-  // returns true, then Create() must not return nullptr.
-  static bool IsSupported();
-  static std::unique_ptr<AudioCapturer> Create();
+  virtual ~AudioSource() {}
 
   // Capturers should sample at a 44.1 or 48 kHz sampling rate, in uncompressed
   // PCM stereo format. Capturers may choose the number of frames per packet.
   // Returns true on success.
   virtual bool Start(const PacketCapturedCallback& callback) = 0;
-
-  static bool IsValidSampleRate(int sample_rate);
 };
 
+}  // namespace protocol
 }  // namespace remoting
 
-#endif  // REMOTING_HOST_AUDIO_CAPTURER_H_
+#endif  // REMOTING_PROTOCOL_AUDIO_SOURCE_H_