Convert ppapi/shared to use TrackedCallback.

webkit/plugins/ppapi/ppb_graphics_3d_impl.h

Index: webkit/plugins/ppapi/ppb_graphics_3d_impl.h
diff --git a/webkit/plugins/ppapi/ppb_graphics_3d_impl.h b/webkit/plugins/ppapi/ppb_graphics_3d_impl.h
index 088b2f934ac3500e04a215968945fd6d59458533..09ae41af7501eab27592f9a8eed250b94fc74a0e 100644
--- a/webkit/plugins/ppapi/ppb_graphics_3d_impl.h
+++ b/webkit/plugins/ppapi/ppb_graphics_3d_impl.h
@@ -13,8 +13,7 @@
 namespace webkit {
 namespace ppapi {
 
-class PPB_Graphics3D_Impl : public ::ppapi::Resource,
-                            public ::ppapi::PPB_Graphics3D_Shared {
+class PPB_Graphics3D_Impl : public ::ppapi::PPB_Graphics3D_Shared {
  public:
   virtual ~PPB_Graphics3D_Impl();
 
@@ -25,9 +24,6 @@ class PPB_Graphics3D_Impl : public ::ppapi::Resource,
                                PP_Resource share_context,
                                const int32_t* attrib_list);
 
-  // Resource override.
-  virtual ::ppapi::thunk::PPB_Graphics3D_API* AsPPB_Graphics3D_API() OVERRIDE;
-
   // PPB_Graphics3D_API trusted implementation.
   virtual PP_Bool InitCommandBuffer() OVERRIDE;
   virtual PP_Bool SetGetBuffer(int32_t transfer_buffer_id) OVERRIDE;