Add an instance parameter to var objects, audio, and the 2D API. This replace...

ppapi/cpp/dev/audio_dev.h

 // Copyright (c) 2010 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_CPP_DEV_AUDIO_DEV_H_
 #define PPAPI_CPP_DEV_AUDIO_DEV_H_
 
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/c/dev/ppb_audio_dev.h"
 #include "ppapi/cpp/dev/audio_config_dev.h"
 #include "ppapi/cpp/dev/buffer_dev.h"
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/resource.h"
 
 namespace pp {
 
 class Audio_Dev : public Resource {
  public:
   Audio_Dev() {}
-  Audio_Dev(const Instance& instance,
+  Audio_Dev(Instance* instance,
             const AudioConfig_Dev& config,
             PPB_Audio_Callback callback,
             void* user_data);
 
   AudioConfig_Dev& config() { return config_; }
   const AudioConfig_Dev& config() const { return config_; }
 
   bool StartPlayback();
   bool StopPlayback();
 
  private:
   AudioConfig_Dev config_;
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_DEV_AUDIO_DEV_H_