Switch to doing user-resizing via system for panels on Mac

chrome/browser/ui/gtk/panels/panel_gtk.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_GTK_PANELS_PANEL_GTK_H_
 #define CHROME_BROWSER_UI_GTK_PANELS_PANEL_GTK_H_
 
 #include <gtk/gtk.h>
 #include <map>
 
@@ skipping 60 matching lines @@
   virtual void AttachWebContents(content::WebContents* contents) OVERRIDE;
   virtual void DetachWebContents(content::WebContents* contents) OVERRIDE;
   // These sizes are in screen coordinates.
   virtual gfx::Size WindowSizeFromContentSize(
       const gfx::Size& content_size) const OVERRIDE;
   virtual gfx::Size ContentSizeFromWindowSize(
       const gfx::Size& window_size) const OVERRIDE;
   virtual int TitleOnlyHeight() const OVERRIDE;
   virtual bool IsPanelAlwaysOnTop() const OVERRIDE;
   virtual void SetPanelAlwaysOnTop(bool on_top) OVERRIDE;
-  virtual void EnableResizeByMouse(bool enable) OVERRIDE;
   virtual void UpdatePanelMinimizeRestoreButtonVisibility() OVERRIDE;
   virtual void SetWindowCornerStyle(panel::CornerStyle corner_style) OVERRIDE;
   virtual void MinimizePanelBySystem() OVERRIDE;
   virtual bool IsPanelMinimizedBySystem() const OVERRIDE;
   virtual bool IsPanelShownOnActiveDesktop() const OVERRIDE;
   virtual void ShowShadow(bool show) OVERRIDE;
 
   virtual NativePanelTesting* CreateNativePanelTesting() OVERRIDE;
 
   // Overridden from ActiveWindowWatcherXObserver.
@@ skipping 122 matching lines @@
   // The container for the titlebar.
   scoped_ptr<PanelTitlebarGtk> titlebar_;
 
   // Indicates how the window corner should be rendered, rounded or not.
   panel::CornerStyle corner_style_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_PANELS_PANEL_GTK_H_