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

ppapi/cpp/dev/audio_config_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_CONFIG_DEV_H_
 #define PPAPI_CPP_DEV_AUDIO_CONFIG_DEV_H_
 
 #include "ppapi/c/dev/ppb_audio_config_dev.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/cpp/resource.h"
 
 namespace pp {
 
+class Instance;
+
 // Typical usage:
 //
 //   // Create an audio config with a supported frame count.
 //   uint32_t sample_frame_count =
 //       AudioConfig_Dev::RecommendSampleFrameCount(4096);
 //   AudioConfig_Dev config(PP_AUDIOSAMPLERATE_44100, sample_frame_count);
 //   if (config.is_null())
 //     return false;  // Couldn't configure audio.
 //
 //   // Then use the config to create your audio resource.
 //   Audio_dev audio(..., config, ...);
 //   if (audio.is_null())
 //     return false;  // Couldn't create audio.
 class AudioConfig_Dev : public Resource {
  public:
   AudioConfig_Dev();
 
   // Creates an audio config based on the given sample rate and frame count.
   // If the rate and frame count aren't supported, the resulting resource
   // will be is_null(). Pass the result of RecommendSampleFrameCount as the
   // semple frame count.
   //
   // See PPB_AudioConfigDev.CreateStereo16Bit for more.
-  AudioConfig_Dev(PP_AudioSampleRate_Dev sample_rate,
+  AudioConfig_Dev(Instance* instance,
+                  PP_AudioSampleRate_Dev sample_rate,
                   uint32_t sample_frame_count);
 
   // Returns a supported frame count for use in the constructor.
   //
   // See PPB_AudioConfigDev.RecommendSampleFrameCount.
   static uint32_t RecommendSampleFrameCount(
       uint32_t requested_sample_frame_count);
 
   PP_AudioSampleRate_Dev sample_rate() const { return sample_rate_; }
   uint32_t sample_frame_count() { return sample_frame_count_; }
 
  private:
   PP_AudioSampleRate_Dev sample_rate_;
   uint32_t sample_frame_count_;
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_DEV_AUDIO_CONFIG_DEV_H_