Move more methods from NWW to HWNDMessageHandler.

ui/views/widget/native_widget_private.h

Index: ui/views/widget/native_widget_private.h
===================================================================
--- ui/views/widget/native_widget_private.h	(revision 152769)
+++ ui/views/widget/native_widget_private.h	(working copy)
@@ -39,8 +39,7 @@
 //             NativeWidget implementations. This file should not be included
 //             in code that does not fall into one of these use cases.
 //
-class VIEWS_EXPORT NativeWidgetPrivate : public NativeWidget,
-                                         public internal::InputMethodDelegate {
+class VIEWS_EXPORT NativeWidgetPrivate : public NativeWidget {
  public:
   virtual ~NativeWidgetPrivate() {}
 
@@ -137,7 +136,10 @@
   // class doesn't inherit Widget anymore.
   virtual InputMethod* CreateInputMethod() = 0;
 
+  // Returns the InputMethodDelegate for this native widget.
+  virtual InputMethodDelegate* GetInputMethodDelegate() = 0;
 
+
   // Centers the window and sizes it to the specified size.
   virtual void CenterWindow(const gfx::Size& size) = 0;