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

content/child/shared_worker_devtools_agent.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/shared_worker_devtools_agent.h"
 
-#include "content/child/child_thread.h"
+#include "content/child/child_thread_impl.h"
 #include "content/common/devtools_messages.h"
 #include "ipc/ipc_channel.h"
 #include "third_party/WebKit/public/platform/WebCString.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/web/WebSharedWorker.h"
 
 using blink::WebSharedWorker;
 using blink::WebString;
 
 namespace content {
@@ skipping 70 matching lines @@
 void SharedWorkerDevToolsAgent::OnDetach() {
   webworker_->detachDevTools();
 }
 
 void SharedWorkerDevToolsAgent::OnDispatchOnInspectorBackend(
     const std::string& message) {
   webworker_->dispatchDevToolsMessage(WebString::fromUTF8(message));
 }
 
 bool SharedWorkerDevToolsAgent::Send(IPC::Message* message) {
-  return ChildThread::current()->Send(message);
+  return ChildThreadImpl::current()->Send(message);
 }
 
 }  // namespace content