Makes windowmanager draw non-client area

components/mus/ws/server_window_observer.h

 // Copyright 2015 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 COMPONENTS_MUS_WS_SERVER_WINDOW_OBSERVER_H_
 #define COMPONENTS_MUS_WS_SERVER_WINDOW_OBSERVER_H_
 
 #include "components/mus/public/interfaces/mus_constants.mojom.h"
 
 namespace gfx {
+class Insets;
 class Rect;
 }
 
 namespace ui {
 struct TextInputState;
 }
 
 namespace mus {
 
 namespace ws {
@@ skipping 18 matching lines @@
 
   virtual void OnWindowHierarchyChanged(ServerWindow* window,
                                         ServerWindow* new_parent,
                                         ServerWindow* old_parent) {}
 
   virtual void OnWindowBoundsChanged(ServerWindow* window,
                                      const gfx::Rect& old_bounds,
                                      const gfx::Rect& new_bounds) {}
 
   virtual void OnWindowClientAreaChanged(ServerWindow* window,
-                                         const gfx::Rect& old_client_area,
-                                         const gfx::Rect& new_client_area) {}
+                                         const gfx::Insets& old_client_area,
+                                         const gfx::Insets& new_client_area) {}
 
   virtual void OnWindowReordered(ServerWindow* window,
                                  ServerWindow* relative,
                                  mojom::OrderDirection direction) {}
 
   virtual void OnWillChangeWindowVisibility(ServerWindow* window) {}
   virtual void OnWindowVisibilityChanged(ServerWindow* window) {}
 
   virtual void OnWindowTextInputStateChanged(ServerWindow* window,
                                              const ui::TextInputState& state) {}
 
   virtual void OnWindowSharedPropertyChanged(
       ServerWindow* window,
       const std::string& name,
       const std::vector<uint8_t>* new_data) {}
 
  protected:
   virtual ~ServerWindowObserver() {}
 };
 
 }  // namespace ws
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_SERVER_WINDOW_OBSERVER_H_