Fix start/stop of html5 audio stream and race condition when pausing.

content/renderer/media/webrtc_audio_device_impl.h

 // 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_RENDERER_MEDIA_WEBRTC_AUDIO_DEVICE_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_AUDIO_DEVICE_IMPL_H_
 #pragma once
 
+#include <string>

[Chris Rogers, 2011/12/15 00:32:52]

Do we really need to include this just to get "size_t" ?

[enal1, 2011/12/15 16:54:40]

We need it because in line 125 we are using std::string.

"gcl lint" complained, and I decided it can be fixed as well, because it does
not cost me anything.

 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop_proxy.h"
 #include "base/time.h"
 #include "content/common/content_export.h"
 #include "content/renderer/media/audio_device.h"
@@ skipping 85 matching lines @@
   // webrtc::RefCountedModule implementation.
   // The creator must call AddRef() after construction and use Release()
   // to release the reference and delete this object.
   virtual int32_t AddRef() OVERRIDE;
   virtual int32_t Release() OVERRIDE;
 
   // We need this one to support runnable method tasks.
   static bool ImplementsThreadSafeReferenceCounting() { return true; }
 
   // AudioDevice::RenderCallback implementation.
-  virtual void Render(const std::vector<float*>& audio_data,
-                      size_t number_of_frames,
-                      size_t audio_delay_milliseconds) OVERRIDE;
+  virtual size_t Render(const std::vector<float*>& audio_data,
+                        size_t number_of_frames,
+                        size_t audio_delay_milliseconds) OVERRIDE;
 
   // AudioInputDevice::CaptureCallback implementation.
   virtual void Capture(const std::vector<float*>& audio_data,
                        size_t number_of_frames,
                        size_t audio_delay_milliseconds) OVERRIDE;
 
   // AudioInputDevice::CaptureEventHandler implementation.
   virtual void OnDeviceStarted(const std::string& device_id) OVERRIDE;
   virtual void OnDeviceStopped() OVERRIDE;
 
@@ skipping 200 matching lines @@
   int bytes_per_sample_;
 
   bool initialized_;
   bool playing_;
   bool recording_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcAudioDeviceImpl);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_AUDIO_DEVICE_IMPL_H_