Implement drag and drop testing in a platform independent way.

chrome/browser/ui/panels/panel_browser_window_gtk.h

 // Copyright (c) 2011 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_PANEL_BROWSER_WINDOW_GTK_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_WINDOW_GTK_H_
 
 #include "chrome/browser/ui/gtk/browser_window_gtk.h"
 #include "chrome/browser/ui/panels/native_panel.h"
 
 class Panel;
+class NativePanelTestingGtk;
 
 class PanelBrowserWindowGtk : public BrowserWindowGtk,
                               public NativePanel,
-                              public NativePanelTesting,
                               public MessageLoopForUI::Observer {
+  friend class NativePanelTestingGtk;
  public:
   PanelBrowserWindowGtk(Browser* browser, Panel* panel,
                         const gfx::Rect& bounds);
   virtual ~PanelBrowserWindowGtk();
 
   // BrowserWindowGtk overrides
   virtual void Init() OVERRIDE;
 
   // BrowserWindow overrides
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
@@ skipping 24 matching lines @@
   virtual bool IsPanelActive() const OVERRIDE;
   virtual gfx::NativeWindow GetNativePanelHandle() OVERRIDE;
   virtual void UpdatePanelTitleBar() OVERRIDE;
   virtual void ShowTaskManagerForPanel() OVERRIDE;
   virtual FindBar* CreatePanelFindBar() OVERRIDE;
   virtual void NotifyPanelOnUserChangedTheme() OVERRIDE;
   virtual void DrawAttention() OVERRIDE;
   virtual bool IsDrawingAttention() const OVERRIDE;
   virtual Browser* GetPanelBrowser() const OVERRIDE;
   virtual void DestroyPanelBrowser() OVERRIDE;
-  virtual NativePanelTesting* GetNativePanelTesting() OVERRIDE;
 
  private:
   void SetBoundsImpl();
 
   // MessageLoop::Observer implementation:
   virtual void WillProcessEvent(GdkEvent* event) OVERRIDE;
   virtual void DidProcessEvent(GdkEvent* event) OVERRIDE;
 
   void CreateDragWidget();
   void DestroyDragWidget();
@@ skipping 41 matching lines @@
   // a task to end the drag and only run it if GTK+ didn't send us the
   // drag-failed event.
   ScopedRunnableMethodFactory<PanelBrowserWindowGtk> drag_end_factory_;
 
   scoped_ptr<Panel> panel_;
   gfx::Rect bounds_;
   DISALLOW_COPY_AND_ASSIGN(PanelBrowserWindowGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_WINDOW_GTK_H_