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

content/renderer/pepper/pepper_file_system_host.cc

 // Copyright (c) 2013 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/renderer/pepper/pepper_file_system_host.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
-#include "content/child/child_thread.h"
+#include "content/child/child_thread_impl.h"
 #include "content/child/fileapi/file_system_dispatcher.h"
 #include "content/common/pepper_file_util.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/renderer_ppapi_host.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/host/dispatch_host_message.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/file_system_util.h"
@@ skipping 75 matching lines @@
   storage::FileSystemType file_system_type =
       PepperFileSystemTypeToFileSystemType(type_);
   if (file_system_type == storage::kFileSystemTypeUnknown)
     return PP_ERROR_FAILED;
 
   GURL document_url = renderer_ppapi_host_->GetDocumentURL(pp_instance());
   if (!document_url.is_valid())
     return PP_ERROR_FAILED;
 
   FileSystemDispatcher* file_system_dispatcher =
-      ChildThread::current()->file_system_dispatcher();
+      ChildThreadImpl::current()->file_system_dispatcher();
   reply_context_ = context->MakeReplyMessageContext();
   file_system_dispatcher->OpenFileSystem(
       document_url.GetOrigin(),
       file_system_type,
       base::Bind(&PepperFileSystemHost::DidOpenFileSystem,
                  weak_factory_.GetWeakPtr()),
       base::Bind(&PepperFileSystemHost::DidFailOpenFileSystem,
                  weak_factory_.GetWeakPtr()));
   return PP_OK_COMPLETIONPENDING;
 }
@@ skipping 20 matching lines @@
   const std::string root_name = ppapi::IsolatedFileSystemTypeToRootName(type);
   if (root_name.empty())
     return PP_ERROR_BADARGUMENT;
   root_url_ = GURL(storage::GetIsolatedFileSystemRootURIString(
       url.GetOrigin(), fsid, root_name));
   opened_ = true;
   return PP_OK;
 }
 
 }  // namespace content