Custom frame UI for platform apps on Windows.

ui/views/widget/native_widget_win.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_WIN_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
 #pragma once
 
 #include <atlbase.h>
 #include <atlapp.h>
@@ skipping 476 matching lines @@
 
   // Lock or unlock the window from being able to redraw itself in response to
   // updates to its invalid region.
   class ScopedRedrawLock;
   void LockUpdates();
   void UnlockUpdates();
 
   // Determines whether the delegate expects the client size or the window size.
   bool WidgetSizeIsClientSize() const;
 
+  // True if client size == window size according to the NonClientFrameView.
+  virtual bool ShouldRemoveStandardFrame() const;
+
   // Responds to the client area changing size, either at window creation time
   // or subsequently.
   void ClientAreaSizeChanged();
 
   // Resets the window region for the current widget bounds if necessary.
   // If |force| is true, the window region is reset to NULL even for native
   // frame windows.
   void ResetWindowRegion(bool force);
 
   // Calls DefWindowProc, safely wrapping the call in a ScopedRedrawLock to
@@ skipping 145 matching lines @@
   // rather than asking the Widget for the non_client_view so that we know at
   // Init time, before the Widget has created the NonClientView.
   bool has_non_client_view_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetWin);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_