Fix dragging supported files to tab strip.

chrome/browser/ui/views/tabs/tab_strip_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_STRIP_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_
 
 #include "chrome/browser/ui/views/tabs/tab_strip_types.h"
 #include "ui/base/ui_base_types.h"
 
 class GURL;
 class Tab;
 class TabStrip;
 
 namespace gfx {
 class Point;
 }
 
 namespace ui {
 class ListSelectionModel;
 }
 
+class Profile;
+
 // Model/Controller for the TabStrip.
 // NOTE: All indices used by this class are in model coordinates.
 class TabStripController {
  public:
   virtual ~TabStripController() {}
 
   // Returns the selection model of the tabstrip.
   virtual const ui::ListSelectionModel& GetSelectionModel() = 0;
 
   // Returns the number of tabs in the model.
@@ skipping 66 matching lines @@
   // Invoked if the layout type might have changed.
   virtual void LayoutTypeMaybeChanged() = 0;
 
   // Notifies controller that the user started dragging this tabstrip's tabs.
   virtual void OnStartedDraggingTabs() = 0;
 
   // Notifies controller that the user stopped dragging this tabstrip's tabs.
   // This is also called when the tabs that the user is dragging were detached
   // from this tabstrip but the user is still dragging the tabs.
   virtual void OnStoppedDraggingTabs() = 0;
+
+  // Returns the profile associated with the controller's model.
+  virtual Profile* GetProfile() = 0;

[sky, 2013/11/15 00:48:54]

I think you can get the profile from the browsercontext for a WebContents.

[michaelpg, 2013/11/15 21:08:01]

Could you please clarify this for me? The TabStrip takes a TabStripController
which is just an abstract class -- where can I get the WebContents from?

[sky, 2013/11/15 22:07:18]

You are right. In which case I would prefer to keep this class clean of the
Profile and move as much of this logic into BrowserTabStripController. It can
take the request and asynchronously call back to the TabStrip with the results.

[michaelpg, 2013/11/18 23:24:51]

Done.

 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_