Adding microphone volume support to chrome.

media/audio/fake_audio_input_stream.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 "media/audio/fake_audio_input_stream.h"
 
 #include "base/bind.h"
 
 using base::Time;
 using base::TimeDelta;
@@ skipping 59 matching lines @@
   thread_.Stop();
 }
 
 void FakeAudioInputStream::Close() {
   if (callback_) {
     callback_->OnClose(this);
     callback_ = NULL;
   }
   Release();  // Destoys this object.
 }
+
+double FakeAudioInputStream::GetMaxVolume() {
+  return 0.0;
+}
+
+void FakeAudioInputStream::SetVolume(double volume) {}
+
+double FakeAudioInputStream::GetVolume() {
+  return 0.0;
+}