Remove Widget::OnRootViewLayout().

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_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 741 matching lines @@
   bool movement_disabled() const { return movement_disabled_; }
   void set_movement_disabled(bool disabled) { movement_disabled_ = disabled; }
 
   // Returns the work area bounds of the screen the Widget belongs to.
   gfx::Rect GetWorkAreaBoundsInScreen() const;
 
   // Creates and dispatches synthesized mouse move event using the current
   // mouse location to refresh hovering status in the widget.
   void SynthesizeMouseMoveEvent();
 
-  // Called by our RootView after it has performed a Layout. Used to forward
-  // window sizing information to the window server on some platforms.
-  void OnRootViewLayout();
-
   // Whether the widget supports translucency.
   bool IsTranslucentWindowOpacitySupported() const;
 
   // Called when the delegate's CanResize or CanMaximize changes.
   void OnSizeConstraintsChanged();
 
   // Notification that our owner is closing.
   // NOTE: this is not invoked for aura as it's currently not needed there.
   // Under aura menus close by way of activation getting reset when the owner
   // closes.
@@ skipping 195 matching lines @@
   bool movement_disabled_;
 
   ScopedObserver<ui::NativeTheme, ui::NativeThemeObserver> observer_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(Widget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_WIDGET_H_