Remove unused flush operation from Chromium audio.

media/audio/audio_output_device_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 <vector>
 
 #include "base/at_exit.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/shared_memory.h"
@@ skipping 40 matching lines @@
 
   MOCK_METHOD1(AddDelegate, int(AudioOutputIPCDelegate* delegate));
   MOCK_METHOD1(RemoveDelegate, void(int stream_id));
 
   MOCK_METHOD2(CreateStream,
       void(int stream_id, const AudioParameters& params));
   MOCK_METHOD1(PlayStream, void(int stream_id));
   MOCK_METHOD1(CloseStream, void(int stream_id));
   MOCK_METHOD2(SetVolume, void(int stream_id, double volume));
   MOCK_METHOD1(PauseStream, void(int stream_id));
-  MOCK_METHOD1(FlushStream, void(int stream_id));
 };
 
 // Creates a copy of a SyncSocket handle that we can give to AudioOutputDevice.
 // On Windows this means duplicating the pipe handle so that AudioOutputDevice
 // can call CloseHandle() (since ownership has been transferred), but on other
 // platforms, we just copy the same socket handle since AudioOutputDevice on
 // those platforms won't actually own the socket (FileDescriptor.auto_close is
 // false).
 bool DuplicateSocketHandle(SyncSocket::Handle socket_handle,
                            SyncSocket::Handle* copy) {
@@ skipping 217 matching lines @@
   ExpectRenderCallback();
   CreateStream();
   WaitUntilRenderCallback();
   StopAudioDevice();
 }
 
 INSTANTIATE_TEST_CASE_P(Render, AudioOutputDeviceTest, Values(false));
 INSTANTIATE_TEST_CASE_P(RenderIO, AudioOutputDeviceTest, Values(true));
 
 }  // namespace media.