Adds method to invoke platform provided audio input UI.

media/audio/audio_output_proxy_unittest.cc

 // Copyright (c) 2010 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/message_loop.h"
 #include "base/threading/platform_thread.h"
 #include "media/audio/audio_output_dispatcher.h"
 #include "media/audio/audio_output_proxy.h"
 #include "media/audio/audio_manager.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 32 matching lines @@
   MOCK_METHOD0(HasAudioInputDevices, bool());
   MOCK_METHOD0(GetAudioInputDeviceModel, string16());
   MOCK_METHOD1(MakeAudioOutputStream, AudioOutputStream*(
       AudioParameters params));
   MOCK_METHOD1(MakeAudioOutputStreamProxy, AudioOutputStream*(
       const AudioParameters& params));
   MOCK_METHOD1(MakeAudioInputStream, AudioInputStream*(
       AudioParameters params));
   MOCK_METHOD0(MuteAll, void());
   MOCK_METHOD0(UnMuteAll, void());
+  MOCK_METHOD0(CanShowAudioInputSettings, bool());
+  MOCK_METHOD0(ShowAudioInputSettings, void());
   MOCK_METHOD0(GetMessageLoop, MessageLoop*());
 };
 
 class MockAudioSourceCallback : public AudioOutputStream::AudioSourceCallback {
  public:
   MOCK_METHOD4(OnMoreData, uint32(AudioOutputStream* stream,
                                   uint8* dest, uint32 max_size,
                                   AudioBuffersState buffers_state));
   MOCK_METHOD2(OnError, void(AudioOutputStream* stream, int code));
 };
@@ skipping 282 matching lines @@
 
   EXPECT_CALL(callback_, OnError(_, _))
       .Times(1);
 
   proxy->Start(&callback_);
 
   Mock::VerifyAndClear(&callback_);
 
   proxy->Close();
 }