Convert Aura to use ui::Event.

ui/aura/window_delegate.h

Index: ui/aura/window_delegate.h
===================================================================
--- ui/aura/window_delegate.h	(revision 150582)
+++ ui/aura/window_delegate.h	(working copy)
@@ -17,14 +17,15 @@
 class Size;
 }
 
-namespace aura {
-
-class Event;
-class GestureEvent;
+namespace ui {
+class GestureEventImpl;
 class KeyEvent;
 class MouseEvent;
-class TouchEvent;
+class TouchEventImpl;
+}
 
+namespace aura {
+
 // Delegate interface for aura::Window.
 class AURA_EXPORT WindowDelegate {
  public:
@@ -39,7 +40,7 @@
   virtual void OnFocus(aura::Window* old_focused_window) = 0;
   virtual void OnBlur() = 0;
 
-  virtual bool OnKeyEvent(KeyEvent* event) = 0;
+  virtual bool OnKeyEvent(ui::KeyEvent* event) = 0;
 
   // Returns the native cursor for the specified point, in window coordinates,
   // or NULL for the default cursor.
@@ -55,11 +56,11 @@
       Window* child,
       const gfx::Point& location) = 0;
 
-  virtual bool OnMouseEvent(MouseEvent* event) = 0;
+  virtual bool OnMouseEvent(ui::MouseEvent* event) = 0;
 
-  virtual ui::TouchStatus OnTouchEvent(TouchEvent* event) = 0;
+  virtual ui::TouchStatus OnTouchEvent(ui::TouchEventImpl* event) = 0;
 
-  virtual ui::GestureStatus OnGestureEvent(GestureEvent* event) = 0;
+  virtual ui::GestureStatus OnGestureEvent(ui::GestureEventImpl* event) = 0;
 
   // Returns true of the window can be focused.
   virtual bool CanFocus() = 0;