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

ui/views/controls/textfield/native_textfield_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_TEXTFIELD_NATIVE_TEXTFIELD_VIEWS_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_VIEWS_H_
 
 #include "base/memory/weak_ptr.h"
 #include "base/string16.h"
 #include "ui/base/events/event_constants.h"
@@ skipping 43 matching lines @@
   static const int kCursorBlinkCycleMs;
 
   explicit NativeTextfieldViews(Textfield* parent);
   virtual ~NativeTextfieldViews();
 
   // View overrides:
   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
   virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
   virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
   virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
-  virtual ui::EventResult OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
+  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
   virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
   virtual bool GetDropFormats(
       int* formats,
       std::set<ui::OSExchangeData::CustomFormat>* custom_formats) OVERRIDE;
   virtual bool CanDrop(const ui::OSExchangeData& data) OVERRIDE;
   virtual int OnDragUpdated(const ui::DropTargetEvent& event) OVERRIDE;
   virtual int OnPerformDrop(const ui::DropTargetEvent& event) OVERRIDE;
   virtual void OnDragDone() OVERRIDE;
   virtual bool OnKeyReleased(const ui::KeyEvent& event) OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
@@ skipping 217 matching lines @@
   scoped_ptr<views::MenuRunner> context_menu_runner_;
 
   scoped_ptr<TouchSelectionController> touch_selection_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeTextfieldViews);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_VIEWS_H_