Unify the three places that patch font loading for PDFium on Windows.

content/child/notifications/notification_image_loader.cc

 // Copyright 2014 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 "content/child/notifications/notification_image_loader.h"
 
 #include "base/logging.h"
-#include "content/child/child_thread.h"
+#include "content/child/child_thread_impl.h"
 #include "content/child/image_decoder.h"
 #include "content/child/worker_task_runner.h"
 #include "third_party/WebKit/public/platform/Platform.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/WebURLLoader.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 using blink::WebURL;
 using blink::WebURLError;
 using blink::WebURLLoader;
 using blink::WebURLRequest;
 
 namespace content {
 
 NotificationImageLoader::NotificationImageLoader(
     const NotificationImageLoadedCallback& callback)
     : callback_(callback),
       completed_(false) {}
 
 NotificationImageLoader::~NotificationImageLoader() {}
 
 void NotificationImageLoader::StartOnMainThread(const WebURL& image_url,
                                                 int worker_thread_id) {
-  DCHECK(ChildThread::current());
+  DCHECK(ChildThreadImpl::current());
   DCHECK(!url_loader_);
 
   worker_thread_id_ = worker_thread_id;
 
   WebURLRequest request(image_url);
   request.setRequestContext(WebURLRequest::RequestContextImage);
 
   url_loader_.reset(blink::Platform::current()->createURLLoader());
   url_loader_->loadAsynchronously(request, this);
 }
@@ skipping 40 matching lines @@
     callback_.Run(loader);
     return;
   }
 
   WorkerTaskRunner::Instance()->PostTask(
       worker_thread_id_,
       base::Bind(callback_, loader));
 }
 
 }  // namespace content