Changes the tabstrip dragging code to use coordinates from the events

chrome/browser/ui/views/tabs/tab_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_VIEWS_TABS_TAB_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_CONTROLLER_H_
 #pragma once
 
 class BaseTab;
 class TabStripSelectionModel;
@@ skipping 44 matching lines @@
   // Returns true if the specified Tab is closeable.
   virtual bool IsTabCloseable(const BaseTab* tab) const = 0;
 
   // Potentially starts a drag for the specified Tab.
   virtual void MaybeStartDrag(
       BaseTab* tab,
       const views::MouseEvent& event,
       const TabStripSelectionModel& original_selection) = 0;
 
   // Continues dragging a Tab.
-  virtual void ContinueDrag(const views::MouseEvent& event) = 0;
+  virtual void ContinueDrag(views::View* view, const gfx::Point& location) = 0;
 
   // Ends dragging a Tab. |canceled| is true if the drag was aborted in a way
   // other than the user releasing the mouse. Returns whether the tab has been
   // destroyed.
   virtual bool EndDrag(bool canceled) = 0;
 
   // Returns the tab that contains the specified coordinates, in terms of |tab|,
   // or NULL if there is no tab that contains the specified point.
   virtual BaseTab* GetTabAt(BaseTab* tab,
                             const gfx::Point& tab_in_tab_coordinates) = 0;
 
   // Informs that an active tab is selected when already active (ie - clicked
   // when already active/foreground).
   virtual void ClickActiveTab(const BaseTab* tab) const = 0;
 
   // Invoked when a mouse event occurs on |source|.
   virtual void OnMouseEventInTab(views::View* source,
                                  const views::MouseEvent& event) = 0;
 
   // Returns true if |tab| needs to be painted. If false is returned the tab is
   // not painted. If true is returned the tab should be painted and |clip| is
   // set to the clip (if |clip| is empty means no clip).
   virtual bool ShouldPaintTab(const BaseTab* tab, gfx::Rect* clip) = 0;
 
  protected:
   virtual ~TabController() {}
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_TAB_CONTROLLER_H_