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

chrome/browser/ui/views/immersive_mode_controller.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_IMMERSIVE_MODE_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_IMMERSIVE_MODE_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/timer.h"
@@ skipping 21 matching lines @@
   // Enables or disables immersive mode.
   void SetEnabled(bool enabled);
   bool enabled() const { return enabled_; }
 
   // True when we are hiding the top views due to immersive mode.
   bool ShouldHideTopViews() const { return enabled_ && !revealed_; }
 
   bool IsRevealed() const { return enabled_ && revealed_; }
 
   // ui::EventHandler overrides:
-  virtual ui::EventResult OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
   virtual ui::EventResult OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
-  virtual ui::EventResult OnScrollEvent(ui::ScrollEvent* event) OVERRIDE;
-  virtual ui::EventResult OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
-  virtual ui::EventResult OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
 
   // ui::ImplicitAnimationObserver overrides:
   virtual void OnImplicitAnimationsCompleted() OVERRIDE;
 
   // views::MouseWatcherListener overrides:
   virtual void MouseMovedOutOfHost() OVERRIDE;
 
   // Testing interface.
   void StartRevealForTest();
   void EndRevealForTest();
@@ skipping 34 matching lines @@
   base::OneShotTimer<ImmersiveModeController> top_timer_;
 
   // Mouse watcher to detect when the cursor leaves the top-of-window views
   // in immersive mode, indicating that we should hide the views.
   scoped_ptr<views::MouseWatcher> mouse_watcher_;
 
   DISALLOW_COPY_AND_ASSIGN(ImmersiveModeController);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_IMMERSIVE_MODE_CONTROLLER_H_