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

chrome/browser/ui/views/panels/panel_view.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_VIEWS_PANELS_PANEL_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/panels/native_panel.h"
 #include "ui/base/animation/animation_delegate.h"
@@ skipping 45 matching lines @@
   virtual void PanelCut() OVERRIDE;
   virtual void PanelCopy() OVERRIDE;
   virtual void PanelPaste() OVERRIDE;
   virtual void DrawAttention(bool draw_attention) OVERRIDE;
   virtual bool IsDrawingAttention() const OVERRIDE;
   virtual void HandlePanelKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) OVERRIDE;
   virtual void FullScreenModeChanged(bool is_full_screen) 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 PanelExpansionStateChanging(
       Panel::ExpansionState old_state,
       Panel::ExpansionState new_state) OVERRIDE;
   virtual void AttachWebContents(content::WebContents* contents) OVERRIDE;
   virtual void DetachWebContents(content::WebContents* contents) OVERRIDE;
   virtual gfx::Size WindowSizeFromContentSize(
       const gfx::Size& content_size) const OVERRIDE;
   virtual gfx::Size ContentSizeFromWindowSize(
@@ skipping 172 matching lines @@
 
 #if defined(OS_WIN)
   // Used to provide custom taskbar thumbnail for Windows 7 and later.
   scoped_ptr<TaskbarWindowThumbnailerWin> thumbnailer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(PanelView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PANELS_PANEL_VIEW_H_