Switch OnMoreData() to use AudioBus.

ppapi/shared_impl/ppb_audio_shared.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 PPAPI_SHARED_IMPL_PPB_AUDIO_SHARED_H_
 #define PPAPI_SHARED_IMPL_PPB_AUDIO_SHARED_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/shared_memory.h"
 #include "base/sync_socket.h"
 #include "base/threading/simple_thread.h"
+#include "media/base/audio_bus.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/thunk/ppb_audio_api.h"
 
 #if defined(OS_NACL)
 #include "native_client/src/untrusted/irt/irt_ppapi.h"
 #endif
 
 namespace ppapi {
 
@@ skipping 24 matching lines @@
   // playback request will be done in the derived classes and will be different
   // from the proxy and the renderer.
   void SetStartPlaybackState();
   void SetStopPlaybackState();
 
   // Sets the shared memory and socket handles. This will automatically start
   // playback if we're currently set to play.
   void SetStreamInfo(PP_Instance instance,
                      base::SharedMemoryHandle shared_memory_handle,
                      size_t shared_memory_size,
-                     base::SyncSocket::Handle socket_handle);
+                     base::SyncSocket::Handle socket_handle,
+                     int sample_frame_count);
 
 #if defined(OS_NACL)
   // NaCl has a special API for IRT code to create threads that can call back
   // into user code.
   static void SetThreadFunctions(const struct PP_ThreadFunctions* functions);
 #endif
 
  private:
   // Starts execution of the audio thread.
   void StartThread();
@@ skipping 28 matching lines @@
 
   static void CallRun(void* self);
 #endif
 
   // Callback to call when audio is ready to accept new samples.
   PPB_Audio_Callback callback_;
 
   // User data pointer passed verbatim to the callback function.
   void* user_data_;
 
+  // AudioBus for shuttling data across the shared memory.
+  scoped_ptr<media::AudioBus> audio_bus_;
+
+  // Internal buffer for client's integer audio data.
+  int client_buffer_size_bytes_;
+  scoped_array<uint8_t> client_buffer_;
+
   DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Shared);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_PPB_AUDIO_SHARED_H_