Rename the shared impl files.

ppapi/shared_impl/ppb_audio_shared.h

Index: ppapi/shared_impl/ppb_audio_shared.h
diff --git a/ppapi/shared_impl/audio_impl.h b/ppapi/shared_impl/ppb_audio_shared.h
similarity index 91%
rename from ppapi/shared_impl/audio_impl.h
rename to ppapi/shared_impl/ppb_audio_shared.h
index 201582d57385fca7b5d3997981af3cfb1aeea718..99f45dea6ec5f3bbed7d8f33986826911e0b2599 100644
--- a/ppapi/shared_impl/audio_impl.h
+++ b/ppapi/shared_impl/ppb_audio_shared.h
@@ -2,8 +2,8 @@
 // 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_
+#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"
@@ -18,12 +18,12 @@ 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
+class PPAPI_SHARED_EXPORT PPB_Audio_Shared
     : public thunk::PPB_Audio_API,
       public base::DelegateSimpleThread::Delegate {
  public:
-  AudioImpl();
-  virtual ~AudioImpl();
+  PPB_Audio_Shared();
+  virtual ~PPB_Audio_Shared();
 
   bool playing() const { return playing_; }
 
@@ -80,8 +80,10 @@ class PPAPI_SHARED_EXPORT AudioImpl
 
   // User data pointer passed verbatim to the callback function.
   void* user_data_;
+
+  DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Shared);
 };
 
 }  // namespace ppapi
 
-#endif  // PPAPI_SHARED_IMPL_AUDIO_IMPL_H_
+#endif  // PPAPI_SHARED_IMPL_PPB_AUDIO_SHARED_H_