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

ui/views/controls/combobox/native_combobox_views.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_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_VIEWS_H_
 #define UI_VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_VIEWS_H_
 
 #include "ui/views/controls/combobox/native_combobox_wrapper.h"
 #include "ui/views/controls/menu/menu_delegate.h"
 #include "ui/views/view.h"
@@ skipping 22 matching lines @@
   // views::View overrides:
   virtual bool OnMousePressed(const ui::MouseEvent& mouse_event) OVERRIDE;
   virtual bool OnMouseDragged(const ui::MouseEvent& mouse_event) OVERRIDE;
   virtual bool OnKeyPressed(const ui::KeyEvent& key_event) OVERRIDE;
   virtual bool OnKeyReleased(const ui::KeyEvent& key_event) OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual void OnFocus() OVERRIDE;
   virtual void OnBlur() OVERRIDE;
 
   // ui::EventHandler overrides:
-  virtual ui::EventResult OnGestureEvent(ui::GestureEvent* gesture) OVERRIDE;
+  virtual void OnGestureEvent(ui::GestureEvent* gesture) OVERRIDE;
 
   // NativeComboboxWrapper overrides:
   virtual void UpdateFromModel() OVERRIDE;
   virtual void UpdateSelectedIndex() OVERRIDE;
   virtual void UpdateEnabled() OVERRIDE;
   virtual int GetSelectedIndex() const OVERRIDE;
   virtual bool IsDropdownOpen() const OVERRIDE;
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual View* GetView() OVERRIDE;
   virtual void SetFocus() OVERRIDE;
@@ skipping 42 matching lines @@
   // The maximum dimensions of the content in the dropdown
   int content_width_;
   int content_height_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeComboboxViews);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_COMBOBOX_NATIVE_COMBOBOX_VIEWS_H_