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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_NATIVE_BROWSER_FRAME_H_
      6 #define CHROME_BROWSER_UI_VIEWS_FRAME_NATIVE_BROWSER_FRAME_H_
      7 
      8 #include "ui/base/ui_base_types.h"
      9 #include "ui/gfx/rect.h"
     10 
     11 class BrowserFrame;
     12 class BrowserView;
     13 
     14 namespace views {
     15 class NativeWidget;
     16 }
     17 
     18 class NativeBrowserFrame {
     19  public:
     20   virtual ~NativeBrowserFrame() {}
     21 
     22   virtual views::NativeWidget* AsNativeWidget() = 0;
     23   virtual const views::NativeWidget* AsNativeWidget() const = 0;
     24 
     25   // Returns true if the OS takes care of showing the system menu. Returning
     26   // false means BrowserFrame handles showing the system menu.
     27   virtual bool UsesNativeSystemMenu() const = 0;
     28 
     29   // Returns true when the window placement should be stored.
     30   virtual bool ShouldSaveWindowPlacement() const = 0;
     31 
     32   // Retrieves the window placement (show state and bounds) for restoring.
     33   virtual void GetWindowPlacement(gfx::Rect* bounds,
     34                                   ui::WindowShowState* show_state) const = 0;
     35 
     36  protected:
     37   friend class BrowserFrame;
     38 
     39   // BrowserFrame pass-thrus ---------------------------------------------------
     40   // See browser_frame.h for documentation:
     41   virtual int GetMinimizeButtonOffset() const = 0;
     42 };
     43 
     44 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_NATIVE_BROWSER_FRAME_H_
     45