Allows fullscreen to be triggered with the key events used for scrolling.

content/renderer/render_widget.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_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <deque>
 #include <map>
 
@@ skipping 460 matching lines @@
   virtual bool WillHandleGestureEvent(const WebKit::WebGestureEvent& event);
 
   // Called by OnHandleInputEvent() to notify subclasses that a mouse event was
   // just handled.
   virtual void DidHandleMouseEvent(const WebKit::WebMouseEvent& event) {}
 
   // Called by OnHandleInputEvent() to notify subclasses that a touch event was
   // just handled.
   virtual void DidHandleTouchEvent(const WebKit::WebTouchEvent& event) {}
 
+  // Called by OnHandleInputEvent() to conditionally scroll up/down the top
+  // controls.
+  virtual bool MaybeScrollTopControls(const WebKit::WebInputEvent* event);
+
   // Check whether the WebWidget has any touch event handlers registered
   // at the given point.
   virtual bool HasTouchEventHandlersAt(const gfx::Point& point) const;
 
   // Check whether the WebWidget has any touch event handlers registered.
   virtual void hasTouchEventHandlers(bool has_handlers);
 
   // Creates a 3D context associated with this view.
   WebGraphicsContext3DCommandBufferImpl* CreateGraphicsContext3D(
       const WebKit::WebGraphicsContext3D::Attributes& attributes);
@@ skipping 203 matching lines @@
   bool is_threaded_compositing_enabled_;
 
   base::WeakPtrFactory<RenderWidget> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_