Introduce EventProcessor::OnEventProcessingStarted()

ui/views/widget/root_view.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 UI_VIEWS_WIDGET_ROOT_VIEW_H_
 #define UI_VIEWS_WIDGET_ROOT_VIEW_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 75 matching lines @@
   // hierarchy.
   void LocaleChanged();
 
   // Overridden from FocusTraversable:
   virtual FocusSearch* GetFocusSearch() OVERRIDE;
   virtual FocusTraversable* GetFocusTraversableParent() OVERRIDE;
   virtual View* GetFocusTraversableParentView() OVERRIDE;
 
   // Overridden from ui::EventProcessor:
   virtual ui::EventTarget* GetRootTarget() OVERRIDE;
-  virtual ui::EventDispatchDetails OnEventFromSource(ui::Event* event) OVERRIDE;
+  virtual bool OnEventProcessingStarted(ui::Event* event) OVERRIDE;
   virtual void OnEventProcessingFinished(ui::Event* event) OVERRIDE;
 
   // Overridden from View:
   virtual const Widget* GetWidget() const OVERRIDE;
   virtual Widget* GetWidget() OVERRIDE;
   virtual bool IsDrawn() const OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
   virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE;
   virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
@@ skipping 120 matching lines @@
   // Tracks drag state for a view.
   View::DragInfo drag_info_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(RootView);
 };
 
 }  // namespace internal
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_ROOT_VIEW_H_