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

chrome/browser/views/browser_actions_container.cc

 // 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.
 
 #include "chrome/browser/views/browser_actions_container.h"
 
 #include "app/gfx/canvas.h"
 #include "app/resource_bundle.h"
 #include "app/slide_animation.h"
 #include "base/stl_util-inl.h"
@@ skipping 121 matching lines @@
 gfx::Insets BrowserActionButton::GetInsets() const {
   static gfx::Insets zero_inset;
   return zero_inset;
 }
 
 void BrowserActionButton::ButtonPressed(views::Button* sender,
     const views::Event& event) {
   panel_->OnBrowserActionExecuted(this, false);  // inspect_with_devtools
 }
 
-void BrowserActionButton::OnImageLoaded(SkBitmap* image, size_t index) {
+void BrowserActionButton::OnImageLoaded(ImageLoadingTracker* source,
+                                        SkBitmap* image, size_t index) {
   if (image)
     default_icon_ = *image;
 
   tracker_ = NULL;  // The tracker object will delete itself when we return.
 
   // Call back to UpdateState() because a more specific icon might have been set
   // while the load was outstanding.
   UpdateState();
 }
 
@@ skipping 933 matching lines @@
   popup_ = NULL;
   popup_button_->SetButtonNotPushed();
   popup_button_ = NULL;
 }
 
 bool BrowserActionsContainer::ShouldDisplayBrowserAction(Extension* extension) {
   // Only display incognito-enabled extensions while in incognito mode.
   return (!profile_->IsOffTheRecord() ||
           profile_->GetExtensionsService()->IsIncognitoEnabled(extension));
 }