Rename the shared impl files.

ppapi/shared_impl/audio_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 PPAPI_SHARED_IMPL_AUDIO_IMPL_H_
-#define PPAPI_SHARED_IMPL_AUDIO_IMPL_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/shared_memory.h"
-#include "base/sync_socket.h"
-#include "base/threading/simple_thread.h"
-#include "ppapi/c/ppb_audio.h"
-#include "ppapi/shared_impl/resource.h"
-#include "ppapi/thunk/ppb_audio_api.h"
-
-namespace ppapi {
-
-// Implements the logic to map shared memory and run the audio thread signaled
-// from the sync socket. Both the proxy and the renderer implementation use
-// this code.
-class PPAPI_SHARED_EXPORT AudioImpl
-    : public thunk::PPB_Audio_API,
-      public base::DelegateSimpleThread::Delegate {
- public:
-  AudioImpl();
-  virtual ~AudioImpl();
-
-  bool playing() const { return playing_; }
-
-  // Sets the callback information that the background thread will use. This
-  // is optional. Without a callback, the thread will not be run. This
-  // non-callback mode is used in the renderer with the proxy, since the proxy
-  // handles the callback entirely within the plugin process.
-  void SetCallback(PPB_Audio_Callback callback, void* user_data);
-
-  // Configures the current state to be playing or not. The caller is
-  // responsible for ensuring the new state is the opposite of the current one.
-  //
-  // This is the implementation for PPB_Audio.Start/StopPlayback, except that
-  // it does not actually notify the audio system to stop playback, it just
-  // configures our object to stop generating callbacks. The actual stop
-  // 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(base::SharedMemoryHandle shared_memory_handle,
-                     size_t shared_memory_size,
-                     base::SyncSocket::Handle socket_handle);
-
- private:
-  // Starts execution of the audio thread.
-  void StartThread();
-
-  // DelegateSimpleThread::Delegate implementation. Run on the audio thread.
-  virtual void Run();
-
-  // True if playing the stream.
-  bool playing_;
-
-  // Socket used to notify us when audio is ready to accept new samples. This
-  // pointer is created in StreamCreated().
-  scoped_ptr<base::SyncSocket> socket_;
-
-  // Sample buffer in shared memory. This pointer is created in
-  // StreamCreated(). The memory is only mapped when the audio thread is
-  // created.
-  scoped_ptr<base::SharedMemory> shared_memory_;
-
-  // The size of the sample buffer in bytes.
-  size_t shared_memory_size_;
-
-  // When the callback is set, this thread is spawned for calling it.
-  scoped_ptr<base::DelegateSimpleThread> audio_thread_;
-
-  // 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_;
-};
-
-}  // namespace ppapi
-
-#endif  // PPAPI_SHARED_IMPL_AUDIO_IMPL_H_