Make a global enum to differentiate impl & proxy.

ppapi/shared_impl/ppb_audio_config_shared.h

Index: ppapi/shared_impl/ppb_audio_config_shared.h
diff --git a/ppapi/shared_impl/ppb_audio_config_shared.h b/ppapi/shared_impl/ppb_audio_config_shared.h
index 65e3b2b6cc762bd99d2f4421c257772584f49080..2a51be42c1e287875f1fec339bf6eb495bfc116f 100644
--- a/ppapi/shared_impl/ppb_audio_config_shared.h
+++ b/ppapi/shared_impl/ppb_audio_config_shared.h
@@ -18,12 +18,10 @@ class PPAPI_SHARED_EXPORT PPB_AudioConfig_Shared
  public:
   virtual ~PPB_AudioConfig_Shared();
 
-  static PP_Resource CreateAsImpl(PP_Instance instance,
-                                  PP_AudioSampleRate sample_rate,
-                                  uint32_t sample_frame_count);
-  static PP_Resource CreateAsProxy(PP_Instance instance,
-                                   PP_AudioSampleRate sample_rate,
-                                   uint32_t sample_frame_count);
+  static PP_Resource Create(ResourceObjectType type,
+                            PP_Instance instance,
+                            PP_AudioSampleRate sample_rate,
+                            uint32_t sample_frame_count);
 
   // Resource overrides.
   virtual thunk::PPB_AudioConfig_API* AsPPB_AudioConfig_API() OVERRIDE;
@@ -34,10 +32,8 @@ class PPAPI_SHARED_EXPORT PPB_AudioConfig_Shared
 
  private:
   // You must call Init before using this object.
-  // Construct as implementation.
-  explicit PPB_AudioConfig_Shared(PP_Instance instance);
-  // Construct as proxy.
-  explicit PPB_AudioConfig_Shared(const HostResource& host_resource);
+  explicit PPB_AudioConfig_Shared(ResourceObjectType type,
+                                  PP_Instance instance);
 
   // Returns false if the arguments are invalid, the object should not be
   // used in this case.