mac: Finish plumbing for Pepper3D Image Chromium.

ppapi/shared_impl/ppb_graphics_3d_shared.h

Index: ppapi/shared_impl/ppb_graphics_3d_shared.h
diff --git a/ppapi/shared_impl/ppb_graphics_3d_shared.h b/ppapi/shared_impl/ppb_graphics_3d_shared.h
index 7e11f6cd526390085fa470f15f35260654834ce4..4c8a1ab6c7443c3c7aaeb0dccd41346a570e0abe 100644
--- a/ppapi/shared_impl/ppb_graphics_3d_shared.h
+++ b/ppapi/shared_impl/ppb_graphics_3d_shared.h
@@ -43,7 +43,9 @@ class PPAPI_SHARED_EXPORT PPB_Graphics3D_Shared
   int32_t ResizeBuffers(int32_t width, int32_t height) override;
   int32_t SwapBuffers(scoped_refptr<TrackedCallback> callback) override;
   int32_t SwapBuffersWithSyncToken(scoped_refptr<TrackedCallback> callback,
-                                   const gpu::SyncToken& sync_token) override;
+                                   const gpu::SyncToken& sync_token,
+                                   int32_t width,
+                                   int32_t height) override;
   int32_t GetAttribMaxValue(int32_t attribute, int32_t* value) override;
 
   void* MapTexSubImage2DCHROMIUM(GLenum target,
@@ -70,7 +72,9 @@ class PPAPI_SHARED_EXPORT PPB_Graphics3D_Shared
 
   virtual gpu::CommandBuffer* GetCommandBuffer() = 0;
   virtual gpu::GpuControl* GetGpuControl() = 0;
-  virtual int32_t DoSwapBuffers(const gpu::SyncToken& sync_token) = 0;
+  virtual int32_t DoSwapBuffers(const gpu::SyncToken& sync_token,
+                                int32_t width,
+                                int32_t height) = 0;
 
   bool HasPendingSwap() const;
   bool CreateGLES2Impl(int32_t command_buffer_size,
@@ -83,6 +87,10 @@ class PPAPI_SHARED_EXPORT PPB_Graphics3D_Shared
   std::unique_ptr<gpu::TransferBuffer> transfer_buffer_;
   std::unique_ptr<gpu::gles2::GLES2Implementation> gles2_impl_;
 
+  // A local cache of the size of the viewport.
+  int32_t width_ = -1;
+  int32_t height_ = -1;
+
   // Callback that needs to be executed when swap-buffers is completed.
   scoped_refptr<TrackedCallback> swap_callback_;