Reland Propagate OnNativeWidgetMove to delegate/observers, etc.

ui/views/widget/native_widget_delegate.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 UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_
 #pragma once
 
 #include "ui/base/events.h"
 #include "ui/views/views_export.h"
@@ skipping 54 matching lines @@
 
   // Called just after the native widget is destroyed.
   virtual void OnNativeWidgetDestroyed() = 0;
 
   // Returns the smallest size the window can be resized to by the user.
   virtual gfx::Size GetMinimumSize() = 0;
 
   // Returns the largest size the window can be resized to by the user.
   virtual gfx::Size GetMaximumSize() = 0;
 
+  // Called when the NativeWidget changed position.
+  virtual void OnNativeWidgetMove() = 0;
+
   // Called when the NativeWidget changed size to |new_size|.
   virtual void OnNativeWidgetSizeChanged(const gfx::Size& new_size) = 0;
 
   // Called when the user begins/ends to change the bounds of the window.
   virtual void OnNativeWidgetBeginUserBoundsChange() = 0;
   virtual void OnNativeWidgetEndUserBoundsChange() = 0;
 
   // Returns true if the delegate has a FocusManager.
   virtual bool HasFocusManager() const = 0;
 
@@ skipping 27 matching lines @@
 
   //
   virtual Widget* AsWidget() = 0;
   virtual const Widget* AsWidget() const = 0;
 };
 
 }  // namespace internal
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_DELEGATE_H_