Introduce AudioHardwareConfig for renderer side audio device info.

media/audio/audio_output_controller_unittest.cc

 // Copyright (c) 2012 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 "base/basictypes.h"
 #include "base/bind.h"
 #include "base/environment.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 25 matching lines @@
 class MockAudioOutputControllerEventHandler
     : public AudioOutputController::EventHandler {
  public:
   MockAudioOutputControllerEventHandler() {}
 
   MOCK_METHOD1(OnCreated, void(AudioOutputController* controller));
   MOCK_METHOD1(OnPlaying, void(AudioOutputController* controller));
   MOCK_METHOD1(OnPaused, void(AudioOutputController* controller));
   MOCK_METHOD2(OnError, void(AudioOutputController* controller,
                              int error_code));
-
+  MOCK_METHOD3(OnDeviceChange, void(AudioOutputController* controller,
+                                    int new_buffer_size, int new_sample_rate));
  private:
   DISALLOW_COPY_AND_ASSIGN(MockAudioOutputControllerEventHandler);
 };
 
 class MockAudioOutputControllerSyncReader
     : public AudioOutputController::SyncReader {
  public:
   MockAudioOutputControllerSyncReader() {}
 
   MOCK_METHOD1(UpdatePendingBytes, void(uint32 bytes));
@@ skipping 313 matching lines @@
 
 TEST_F(AudioOutputControllerTest, DivertRevertClose) {
   Create(kSamplesPerPacket);
   WaitForCreate();
   DivertNeverPlaying();
   RevertWasNotPlaying();
   Close();
 }
 
 }  // namespace media