Convert ppapi/shared to use TrackedCallback.

webkit/plugins/ppapi/ppb_video_decoder_impl.h

Index: webkit/plugins/ppapi/ppb_video_decoder_impl.h
diff --git a/webkit/plugins/ppapi/ppb_video_decoder_impl.h b/webkit/plugins/ppapi/ppb_video_decoder_impl.h
index 47a9af4ea43444c9dfe7f72656f5a1329ffb748c..190b9e87985b196dd26bc6fa2aee355c1929647b 100644
--- a/webkit/plugins/ppapi/ppb_video_decoder_impl.h
+++ b/webkit/plugins/ppapi/ppb_video_decoder_impl.h
@@ -32,8 +32,7 @@ class GLES2Implementation;
 namespace webkit {
 namespace ppapi {
 
-class PPB_VideoDecoder_Impl : public ::ppapi::Resource,
-                              public ::ppapi::PPB_VideoDecoder_Shared,
+class PPB_VideoDecoder_Impl : public ::ppapi::PPB_VideoDecoder_Shared,
                               public media::VideoDecodeAccelerator::Client {
  public:
   virtual ~PPB_VideoDecoder_Impl();
@@ -43,9 +42,6 @@ class PPB_VideoDecoder_Impl : public ::ppapi::Resource,
                             PP_Resource graphics_context,
                             PP_VideoDecoder_Profile profile);
 
-  // Resource overrides.
-  virtual PPB_VideoDecoder_API* AsPPB_VideoDecoder_API() OVERRIDE;
-
   // PPB_VideoDecoder_API implementation.
   virtual int32_t Decode(const PP_VideoBitstreamBuffer_Dev* bitstream_buffer,
                          PP_CompletionCallback callback) OVERRIDE;