Reland Propagate OnNativeWidgetMove to delegate/observers, etc.

ui/views/widget/widget.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_WIDGET_H_
 #define UI_VIEWS_WIDGET_WIDGET_H_
 #pragma once
 
 #include <set>
 #include <stack>
@@ skipping 80 matching lines @@
 //
 class VIEWS_EXPORT Widget : public internal::NativeWidgetDelegate,
                             public FocusTraversable {
  public:
   // Observers can listen to various events on the Widgets.
   class VIEWS_EXPORT Observer {
    public:
     virtual void OnWidgetClosing(Widget* widget) {}
     virtual void OnWidgetVisibilityChanged(Widget* widget, bool visible) {}
     virtual void OnWidgetActivationChanged(Widget* widget, bool active) {}
+    virtual void OnWidgetMoved(Widget* widget) {}
   };
 
   typedef std::set<Widget*> Widgets;
 
   enum FrameType {
     FRAME_TYPE_DEFAULT,         // Use whatever the default would be.
     FRAME_TYPE_FORCE_CUSTOM,    // Force the custom frame.
     FRAME_TYPE_FORCE_NATIVE     // Force the native frame.
   };
 
@@ skipping 502 matching lines @@
   virtual void EnableInactiveRendering() OVERRIDE;
   virtual void OnNativeWidgetActivationChanged(bool active) OVERRIDE;
   virtual void OnNativeFocus(gfx::NativeView focused_view) OVERRIDE;
   virtual void OnNativeBlur(gfx::NativeView focused_view) OVERRIDE;
   virtual void OnNativeWidgetVisibilityChanged(bool visible) OVERRIDE;
   virtual void OnNativeWidgetCreated() OVERRIDE;
   virtual void OnNativeWidgetDestroying() OVERRIDE;
   virtual void OnNativeWidgetDestroyed() OVERRIDE;
   virtual gfx::Size GetMinimumSize() OVERRIDE;
   virtual gfx::Size GetMaximumSize() OVERRIDE;
+  virtual void OnNativeWidgetMove() OVERRIDE;
   virtual void OnNativeWidgetSizeChanged(const gfx::Size& new_size) OVERRIDE;
   virtual void OnNativeWidgetBeginUserBoundsChange() OVERRIDE;
   virtual void OnNativeWidgetEndUserBoundsChange() OVERRIDE;
   virtual bool HasFocusManager() const OVERRIDE;
   virtual bool OnNativeWidgetPaintAccelerated(
       const gfx::Rect& dirty_region) OVERRIDE;
   virtual void OnNativeWidgetPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual int GetNonClientComponent(const gfx::Point& point) OVERRIDE;
   virtual bool OnKeyEvent(const KeyEvent& event) OVERRIDE;
   virtual bool OnMouseEvent(const MouseEvent& event) OVERRIDE;
@@ skipping 139 matching lines @@
   // duplicate move events even though the mouse hasn't moved.
   bool last_mouse_event_was_move_;
   gfx::Point last_mouse_event_position_;
 
   DISALLOW_COPY_AND_ASSIGN(Widget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_WIDGET_H_