Move compositor InputHandler from RenderViewImpl to RenderWidget.

content/renderer/input/input_handler_manager.h

Index: content/renderer/input/input_handler_manager.h
diff --git a/content/renderer/input/input_handler_manager.h b/content/renderer/input/input_handler_manager.h
index e8da149e30b17ff0292c49782d53a3fdba93d1e4..38e79a6a76bcdc7a2e15223444897ff232ac08e1 100644
--- a/content/renderer/input/input_handler_manager.h
+++ b/content/renderer/input/input_handler_manager.h
@@ -61,7 +61,7 @@ class CONTENT_EXPORT InputHandlerManager {
   // Callable from the main thread only.
   void AddInputHandler(int routing_id,
                        const base::WeakPtr<cc::InputHandler>& input_handler,
-                       const base::WeakPtr<RenderViewImpl>& render_view_impl,
+                       const base::WeakPtr<RenderWidget>& render_widget,
                        bool enable_smooth_scrolling);
 
   void RegisterRoutingID(int routing_id);
@@ -115,7 +115,7 @@ class CONTENT_EXPORT InputHandlerManager {
       int routing_id,
       const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
       const base::WeakPtr<cc::InputHandler>& input_handler,
-      const base::WeakPtr<RenderViewImpl>& render_view_impl,
+      const base::WeakPtr<RenderWidget>& render_widget,
       bool enable_smooth_scrolling);
 
   void RegisterRoutingIDOnCompositorThread(int routing_id);