Add temporary TabStripWrapper interface that is implemented by both TabStrip ...

chrome/browser/views/frame/browser_root_view.h

 // Copyright (c) 2009 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_VIEWS_FRAME_BROWSER_ROOT_VIEW_H
 #define CHROME_BROWSER_VIEWS_FRAME_BROWSER_ROOT_VIEW_H
 
 #include "views/widget/root_view.h"
 
 class OSExchangeData;
-class TabStrip;
+class TabStripWrapper;
 
 // RootView implementation used by BrowserFrame. This forwards drop events to
 // the TabStrip. Visually the tabstrip extends to the top of the frame, but in
 // actually it doesn't. The tabstrip is only as high as a tab. To enable
 // dropping above the tabstrip BrowserRootView forwards drop events to the
 // TabStrip.
 class BrowserRootView : public views::RootView {
  public:
   // You must call set_tabstrip before this class will accept drops.
   BrowserRootView(views::Widget* widget);
 
   // Sets the tabstrip associated with this window. This is used to forward
   // drag and drop operations to, so no drops will be accepted if there is no
   // tabstrip set.
-  void set_tabstrip(TabStrip* tabstrip) { tabstrip_ = tabstrip; }
+  void set_tabstrip(TabStripWrapper* tabstrip) { tabstrip_ = tabstrip; }
 
   virtual bool CanDrop(const OSExchangeData& data);
   virtual void OnDragEntered(const views::DropTargetEvent& event);
   virtual int OnDragUpdated(const views::DropTargetEvent& event);
   virtual void OnDragExited();
   virtual int OnPerformDrop(const views::DropTargetEvent& event);
 
  private:
   // Returns true if the event should be forwarded to the tabstrip.
   bool ShouldForwardToTabStrip(const views::DropTargetEvent& event);
 
   // Converts the event from the hosts coordinate system to the tabstrips
   // coordinate system.
   views::DropTargetEvent* MapEventToTabStrip(
       const views::DropTargetEvent& event);
 
   // The TabStrip.
-  TabStrip* tabstrip_;
+  TabStripWrapper* tabstrip_;
 
   // Is a drop allowed? This is set by CanDrop.
   bool can_drop_;
 
   // If true, drag and drop events are being forwarded to the tab strip.
   // This is used to determine when to send OnDragEntered and OnDragExited
   // to the tab strip.
   bool forwarding_to_tab_strip_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserRootView);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_FRAME_BROWSER_ROOT_VIEW_H