Update chrome/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/thumbnails/thumbnail_tab_helper.cc

 // 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.
 
 #include "chrome/browser/thumbnails/thumbnail_tab_helper.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/thumbnails/render_widget_snapshot_taker.h"
 #include "chrome/browser/thumbnails/thumbnail_service.h"
@@ skipping 188 matching lines @@
   if (web_contents->GetController().GetPendingEntry())
     return;
   const GURL& url = web_contents->GetURL();
   Profile* profile =
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
 
   scoped_refptr<thumbnails::ThumbnailService> thumbnail_service =
       ThumbnailServiceFactory::GetForProfile(profile);
 
   // Skip if we don't need to update the thumbnail.
-  if (thumbnail_service == NULL ||
+  if (thumbnail_service.get() == NULL ||
       !thumbnail_service->ShouldAcquirePageThumbnail(url)) {
     return;
   }
 
   scoped_refptr<thumbnails::ThumbnailingAlgorithm> algorithm(
       thumbnail_service->GetThumbnailingAlgorithm());
 
-  scoped_refptr<ThumbnailingContext> context(
-      new ThumbnailingContext(web_contents,
-                              thumbnail_service,
-                              load_interrupted_));
+  scoped_refptr<ThumbnailingContext> context(new ThumbnailingContext(
+      web_contents, thumbnail_service.get(), load_interrupted_));
   AsyncProcessThumbnail(web_contents, context, algorithm);
 }
 
 void ThumbnailTabHelper::RenderViewHostCreated(
     content::RenderViewHost* renderer) {
   // NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED is really a new
   // RenderView, not RenderViewHost, and there is no good way to get
   // notifications of RenderViewHosts. So just be tolerant of re-registrations.
   bool registered = registrar_.IsRegistered(
       this,
       content::NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
       content::Source<RenderWidgetHost>(renderer));
   if (!registered) {
     registrar_.Add(
         this,
         content::NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
         content::Source<RenderWidgetHost>(renderer));
   }
 }
 
 void ThumbnailTabHelper::WidgetHidden(RenderWidgetHost* widget) {
   if (!enabled_)
     return;
   UpdateThumbnailIfNecessary(web_contents());
 }