Increase the buffer size in AudioRendererImpl to fix muted playback rate

content/browser/renderer_host/media/audio_common.h

Index: content/browser/renderer_host/media/audio_common.h
diff --git a/content/browser/renderer_host/media/audio_common.h b/content/browser/renderer_host/media/audio_common.h
deleted file mode 100644
index 52b73377f1be0bea5a75e765f661b060d44e2481..0000000000000000000000000000000000000000
--- a/content/browser/renderer_host/media/audio_common.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011 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 CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_COMMON_H_
-#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_COMMON_H_
-#pragma once
-
-#include "base/basictypes.h"
-
-struct AudioParameters;
-
-// Calculates a safe hardware buffer size (in number of samples) given a set
-// of audio parameters.
-uint32 SelectSamplesPerPacket(const AudioParameters& params);
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_COMMON_H_