Make touch-resizing windows to screen edge possible

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 46 matching lines @@
  private:
   class ScopedWindowResizer;
 
   enum DragCompletionStatus {
     DRAG_COMPLETE,
     DRAG_REVERT
   };
 
   void CreateScopedWindowResizer(aura::Window* window,
                                  const gfx::Point& point_in_parent,
-                                 int window_component);
+                                 int window_component,
+                                 aura::client::WindowMoveSource source);
 
   // Finishes the drag.
   void CompleteDrag(DragCompletionStatus status, int event_flags);
 
   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.
   void HandleDrag(aura::Window* target, ui::LocatedEvent* event);
@@ skipping 35 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_