Remove views::KeyEvent, replacing uses of it with ui::KeyEvent.

ui/views/widget/native_widget_delegate.h

Index: ui/views/widget/native_widget_delegate.h
===================================================================
--- ui/views/widget/native_widget_delegate.h	(revision 150588)
+++ ui/views/widget/native_widget_delegate.h	(working copy)
@@ -18,13 +18,13 @@
 }
 
 namespace ui {
+class KeyEvent;
 class Layer;
 }
 
 namespace views {
 class InputMethod;
 class GestureEvent;
-class KeyEvent;
 class MouseEvent;
 class TouchEvent;
 
@@ -105,7 +105,7 @@
   virtual int GetNonClientComponent(const gfx::Point& point) = 0;
 
   // Mouse and key event handlers.
-  virtual bool OnKeyEvent(const KeyEvent& event) = 0;
+  virtual bool OnKeyEvent(const ui::KeyEvent& event) = 0;
   virtual bool OnMouseEvent(const MouseEvent& event) = 0;
   virtual void OnMouseCaptureLost() = 0;
   virtual ui::TouchStatus OnTouchEvent(const TouchEvent& event) = 0;