Adds the source ImageLoadingTracker to OnImageLoaded. I need this in a

chrome/browser/views/browser_actions_container.h

 // Copyright (c) 2010 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_BROWSER_ACTIONS_CONTAINER_H_
 #define CHROME_BROWSER_VIEWS_BROWSER_ACTIONS_CONTAINER_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 48 matching lines @@
   const SkBitmap& default_icon() const { return default_icon_; }
 
   // Overridden from views::View. Return a 0-inset so the icon can draw all the
   // way to the edge of the view if it wants.
   virtual gfx::Insets GetInsets() const;
 
   // Overridden from views::ButtonListener:
   virtual void ButtonPressed(views::Button* sender, const views::Event& event);
 
   // Overridden from ImageLoadingTracker.
-  virtual void OnImageLoaded(SkBitmap* image, size_t index);
+  virtual void OnImageLoaded(ImageLoadingTracker* source, SkBitmap* image,
+                             size_t index);
 
   // Overridden from NotificationObserver:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // MenuButton behavior overrides.  These methods all default to TextButton
   // behavior unless this button is a popup.  In that case, it uses MenuButton
   // behavior.  MenuButton has the notion of a child popup being shown where the
   // button will stay in the pushed state until the "menu" (a popup in this
@@ skipping 393 matching lines @@
 
   ScopedRunnableMethodFactory<BrowserActionsContainer> task_factory_;
 
   // Handles delayed showing of the overflow menu when hovering.
   ScopedRunnableMethodFactory<BrowserActionsContainer> show_menu_task_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionsContainer);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_BROWSER_ACTIONS_CONTAINER_H_