Simplify ppapi Graphics3D size propagation a bit

content/renderer/pepper/ppb_graphics_3d_impl.h

 // Copyright (c) 2012 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 CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_
 #define CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 57 matching lines @@
   void ViewInitiatedPaint();
 
   gpu::CommandBufferProxyImpl* GetCommandBufferProxy();
 
  protected:
   ~PPB_Graphics3D_Impl() override;
   // ppapi::PPB_Graphics3D_Shared overrides.
   gpu::CommandBuffer* GetCommandBuffer() override;
   gpu::GpuControl* GetGpuControl() override;
   int32_t DoSwapBuffers(const gpu::SyncToken& sync_token,
-                        int32_t width,
-                        int32_t height) override;
+                        const gfx::Size& size) override;
 
  private:
   explicit PPB_Graphics3D_Impl(PP_Instance instance);
 
   bool InitRaw(PPB_Graphics3D_API* share_context,
                const gpu::gles2::ContextCreationAttribHelper& requested_attribs,
                gpu::Capabilities* capabilities,
                base::SharedMemoryHandle* shared_state_handle,
                gpu::CommandBufferId* command_buffer_id);
 
@@ skipping 19 matching lines @@
 
   // True if context is bound to instance.
   bool bound_to_instance_;
   // True when waiting for compositor to commit our backing texture.
   bool commit_pending_;
 
 #if DCHECK_IS_ON()
   bool lost_context_ = false;
 #endif
 
-  // The width and height of the command buffer back buffer are first sized from
-  // this process, but then resized by the pepper process. Cache the original
-  // size.
-  int32_t original_width_ = 0;
-  int32_t original_height_ = 0;
-
   bool has_alpha_;
   bool use_image_chromium_;
   std::unique_ptr<gpu::CommandBufferProxyImpl> command_buffer_;
 
   base::WeakPtrFactory<PPB_Graphics3D_Impl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Impl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_