events: Update mouse-event handlers to not return EventResult.

ash/wm/toplevel_window_event_handler.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 ASH_WM_TOPLEVEL_WINDOW_EVENT_HANDLER_H_
 #define ASH_WM_TOPLEVEL_WINDOW_EVENT_HANDLER_H_
 
 #include <set>
 
 #include "ash/ash_export.h"
@@ skipping 21 matching lines @@
 class ASH_EXPORT ToplevelWindowEventHandler
     : public ui::EventHandler,
       public aura::client::WindowMoveClient,
       public DisplayController::Observer {
  public:
   explicit ToplevelWindowEventHandler(aura::Window* owner);
   virtual ~ToplevelWindowEventHandler();
 
   // Overridden from ui::EventHandler:
   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
-  virtual ui::EventResult OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
+  virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
 
   // Overridden form aura::client::WindowMoveClient:
   virtual aura::client::WindowMoveResult RunMoveLoop(
       aura::Window* source,
       const gfx::Vector2d& drag_offset) OVERRIDE;
   virtual void EndMoveLoop() OVERRIDE;
 
   // Overridden form ash::DisplayController::Observer:
   virtual void OnDisplayConfigurationChanging() OVERRIDE;
 
  private:
   class ScopedWindowResizer;
 
   enum DragCompletionStatus {
     DRAG_COMPLETE,
     DRAG_REVERT
   };
 
   void CreateScopedWindowResizer(aura::Window* window,
                                  const gfx::Point& point_in_parent,
                                  int window_component);
 
   // Finishes the drag.
   void CompleteDrag(DragCompletionStatus status, int event_flags);
 
-  ui::EventResult HandleMousePressed(aura::Window* target,
-                                     ui::MouseEvent* event);
-  ui::EventResult HandleMouseReleased(aura::Window* target,
-                                      ui::MouseEvent* event);
+  void HandleMousePressed(aura::Window* target, ui::MouseEvent* event);
+  void HandleMouseReleased(aura::Window* target, ui::MouseEvent* event);
 
   // Called during a drag to resize/position the window.
   // The return value is returned by OnMouseEvent() above.
-  ui::EventResult HandleDrag(aura::Window* target, ui::LocatedEvent* event);
+  void HandleDrag(aura::Window* target, ui::LocatedEvent* event);
 
   // Called during mouse moves to update window resize shadows.
   // Return value is returned by OnMouseEvent() above.
-  ui::EventResult HandleMouseMoved(aura::Window* target,
-                                   ui::LocatedEvent* event);
+  void HandleMouseMoved(aura::Window* target, ui::LocatedEvent* event);
 
   // Called for mouse exits to hide window resize shadows.
   // Return value is returned by OnMouseEvent() above.
-  ui::EventResult HandleMouseExited(aura::Window* target,
-                                    ui::LocatedEvent* event);
+  void HandleMouseExited(aura::Window* target, ui::LocatedEvent* event);
 
   // Invoked from ScopedWindowResizer if the window is destroyed.
   void ResizerWindowDestroyed();
 
   // Are we running a nested message loop from RunMoveLoop().
   bool in_move_loop_;
 
   // Was the move operation cancelled? Used only when the nested loop
   // is used to move a window.
   bool move_cancelled_;
@@ skipping 14 matching lines @@
   // Used to track if this object is deleted while running a nested message
   // loop. If non-null the destructor sets this to true.
   bool* destroyed_;
 
   DISALLOW_COPY_AND_ASSIGN(ToplevelWindowEventHandler);
 };
 
 }  // namespace aura
 
 #endif  // ASH_WM_TOPLEVEL_WINDOW_EVENT_HANDLER_H_