Fix destruction order between SurfaceManger and OffscreenCanvasSurfaceImpl

content/browser/renderer_host/offscreen_canvas_surface_impl.h

 // Copyright 2016 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_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_SURFACE_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_SURFACE_IMPL_H_
 
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_factory_client.h"
 #include "cc/surfaces/surface_id.h"
@@ skipping 23 matching lines @@
   void WillDrawSurface(cc::SurfaceId id, const gfx::Rect& damage_rect) override;
   void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override;
 
  private:
   ~OffscreenCanvasSurfaceImpl() override;
   explicit OffscreenCanvasSurfaceImpl(
       mojo::InterfaceRequest<blink::mojom::OffscreenCanvasSurface> request);
 
   // Surface-related state
   std::unique_ptr<cc::SurfaceIdAllocator> id_allocator_;
+  cc::SurfaceId surface_id_;
   std::unique_ptr<cc::SurfaceFactory> surface_factory_;
 
   mojo::StrongBinding<blink::mojom::OffscreenCanvasSurface> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(OffscreenCanvasSurfaceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_SURFACE_IMPL_H_