Make panel adjust bounds per preferred size change notification on Windows.

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"
 
@@ skipping 46 matching lines @@
   virtual void NotifyPanelOnUserChangedTheme() OVERRIDE;
   virtual void DrawAttention() OVERRIDE;
   virtual bool IsDrawingAttention() const OVERRIDE;
   virtual bool PreHandlePanelKeyboardEvent(
       const NativeWebKeyboardEvent& event,
       bool* is_keyboard_shortcut) OVERRIDE;
   virtual void HandlePanelKeyboardEvent(
       const NativeWebKeyboardEvent& event) OVERRIDE;
   virtual Browser* GetPanelBrowser() const OVERRIDE;
   virtual void DestroyPanelBrowser() OVERRIDE;
+  virtual gfx::Size GetNonClientAreaExtent() const OVERRIDE;
+  virtual int GetRestoredHeight() const OVERRIDE;
+  virtual void SetRestoredHeight(int height) 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_