Privatize StrongBinding lifetime management

content/browser/renderer_host/offscreen_canvas_frame_receiver_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_FRAME_RECEIVER_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_FRAME_RECEIVER_IMPL_H_
 
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
 #include "third_party/WebKit/public/platform/modules/offscreencanvas/offscreen_canvas_surface.mojom.h"
 
 namespace content {
 
 class OffscreenCanvasFrameReceiverImpl
     : public blink::mojom::OffscreenCanvasFrameReceiver {
  public:
-  static void Create(mojo::InterfaceRequest<
-                     blink::mojom::OffscreenCanvasFrameReceiver> request);
+  OffscreenCanvasFrameReceiverImpl();
+  ~OffscreenCanvasFrameReceiverImpl() override;
+
+  static void Create(blink::mojom::OffscreenCanvasFrameReceiverRequest request);
 
   void SubmitCompositorFrame(const cc::SurfaceId& surface_id,
                              cc::CompositorFrame frame) override;
 
  private:
-  ~OffscreenCanvasFrameReceiverImpl() override;
-  explicit OffscreenCanvasFrameReceiverImpl(
-      mojo::InterfaceRequest<blink::mojom::OffscreenCanvasFrameReceiver>
-          request);
-
-  mojo::StrongBinding<blink::mojom::OffscreenCanvasFrameReceiver> binding_;
-
   DISALLOW_COPY_AND_ASSIGN(OffscreenCanvasFrameReceiverImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_OFFSCREEN_CANVAS_FRAME_RECEIVER_IMPL_H_