Use multiple shared memory buffers cyclically for audio capture.

content/renderer/pepper/pepper_platform_audio_input_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_INPUT_IMPL_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_INPUT_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 36 matching lines @@
       webkit::ppapi::PluginDelegate::PlatformAudioInputClient* client);
 
   // PlatformAudioInput implementation (called on main thread).
   virtual void StartCapture() OVERRIDE;
   virtual void StopCapture() OVERRIDE;
   virtual void ShutDown() OVERRIDE;
 
   // media::AudioInputIPCDelegate.
   virtual void OnStreamCreated(base::SharedMemoryHandle handle,
                                base::SyncSocket::Handle socket_handle,
-                               int length) OVERRIDE;
+                               int length,
+                               int total_segments) OVERRIDE;
   virtual void OnVolume(double volume) OVERRIDE;
   virtual void OnStateChanged(
       media::AudioInputIPCDelegate::State state) OVERRIDE;
   virtual void OnDeviceReady(const std::string&) OVERRIDE;
   virtual void OnIPCClosed() OVERRIDE;
 
  protected:
   virtual ~PepperPlatformAudioInputImpl();
 
  private:
@@ skipping 50 matching lines @@
 
   // Initialized on the main thread and accessed on the I/O thread afterwards.
   media::AudioParameters params_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperPlatformAudioInputImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_AUDIO_INPUT_IMPL_H_