Separate BrowserWindow from Panel class.

chrome/browser/ui/panels/native_panel.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 CHROME_BROWSER_UI_PANELS_NATIVE_PANEL_H_
 #define CHROME_BROWSER_UI_PANELS_NATIVE_PANEL_H_
 #pragma once
 
 #include "chrome/browser/ui/panels/panel.h"
 #include "ui/gfx/native_widget_types.h"
 
+class Browser;
 class FindBar;
 class NativePanelTesting;
 
 namespace content {
+struct NativeWebKeyboardEvent;
 class WebContents;
 }
 
 namespace gfx {
 class Rect;
 }  // namespace gfx
 
 // An interface for a class that implements platform-specific behavior for panel
 // windows. We use this interface for two reasons:
 // 1. We don't want to use BrowserWindow as the interface between shared panel
 //    code and platform-specific code. BrowserWindow has a lot of methods, most
 //    of which we don't use and simply stub out with NOTIMPLEMENTED().
 // 2. We need some additional methods that BrowserWindow doesn't provide, such
 //    as MinimizePanel() and RestorePanel().
 // Note that even though we don't use BrowserWindow directly, Windows and GTK+
 // still use the BrowserWindow interface as part of their implementation so we
 // use Panel in all the method names to avoid collisions.
 class NativePanel {
   friend class Panel;
+  friend class PanelBrowserWindow;
   friend class PanelBrowserTest;
 
  protected:
   virtual ~NativePanel() {}
 
   virtual void ShowPanel() = 0;
   virtual void ShowPanelInactive() = 0;
   virtual gfx::Rect GetPanelBounds() const = 0;
   virtual void SetPanelBounds(const gfx::Rect& bounds) = 0;
   virtual void SetPanelBoundsInstantly(const gfx::Rect& bounds) = 0;
@@ skipping 83 matching lines @@
   // active, i.e. the titlebar is painted per its active state.
   virtual bool VerifyActiveState(bool is_active) = 0;
   virtual void WaitForWindowCreationToComplete() const { }
 
   virtual bool IsWindowSizeKnown() const = 0;
   virtual bool IsAnimatingBounds() const = 0;
   virtual bool IsButtonVisible(TitlebarButtonType button_type) const = 0;
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_NATIVE_PANEL_H_