Enable user resizing for docked Panels (GTK and Mac).

chrome/browser/ui/panels/panel_resize_controller.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_PANEL_RESIZE_CONTROLLER_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_RESIZE_CONTROLLER_H_
 #pragma once
 
 #include <set>
 #include "base/basictypes.h"
@@ skipping 11 matching lines @@
 class PanelResizeController {
  public:
   explicit PanelResizeController(PanelManager* panel_manager);
 
   // Resize the given panel.
   // |mouse_location| is in screen coordinate system.
   void StartResizing(Panel* panel,
                      const gfx::Point& mouse_location,
                      panel::ResizingSides sides);
   void Resize(const gfx::Point& mouse_location);
-  void EndResizing(bool cancelled);
+
+  // Returns the panel that was resized.
+  Panel* EndResizing(bool cancelled);
 
   // Asynchronous confirmation of panel having been closed.
   void OnPanelClosed(Panel* panel);
 
   bool IsResizing() const { return resizing_panel_ != NULL; }
 
  private:
   PanelManager* panel_manager_;  // Weak, owns us.
 
   // Panel currently being resized.
   Panel* resizing_panel_;
 
   // Resizing at which side?
   panel::ResizingSides sides_resized_;
 
   // The mouse location, in screen coordinates, when StartResizing
   // previously called.
   gfx::Point mouse_location_at_start_;
 
   // Bounds to restore the panel to if resize is cancelled.
   gfx::Rect bounds_at_start_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelResizeController);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_RESIZE_CONTROLLER_H_