events: Change gesture-event handler in EventHandler to not return any values.

chrome/browser/ui/views/location_bar/star_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 CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_STAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_STAR_VIEW_H_
 
 #include "chrome/browser/ui/views/location_bar/touchable_location_bar_view.h"
 #include "ui/views/controls/image_view.h"
 
@@ skipping 18 matching lines @@
  private:
   // views::ImageView overrides:
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
   virtual bool GetTooltipText(const gfx::Point& p,
                               string16* tooltip) const OVERRIDE;
   virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
   virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
 
   // ui::EventHandler overrides:
-  virtual ui::EventResult OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
+  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
 
   // The CommandUpdater for the Browser object that owns the location bar.
   CommandUpdater* command_updater_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(StarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_STAR_VIEW_H_