Convert implicit scoped_refptr constructor calls to explicit ones, part 1

chrome/worker/worker_webkitclient_impl.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/worker/worker_webkitclient_impl.h"
 
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/common/database_util.h"
 #include "chrome/common/file_system/webfilesystem_impl.h"
@@ skipping 30 matching lines @@
   virtual bool getFileSize(const WebKit::WebString& path, long long& result);
   virtual bool getFileModificationTime(const WebKit::WebString& path,
                                        double& result);
 };
 
 static bool SendSyncMessageFromAnyThread(IPC::SyncMessage* msg) {
   WorkerThread* worker_thread = WorkerThread::current();
   if (worker_thread)
     return worker_thread->Send(msg);
 
-  scoped_refptr<IPC::SyncMessageFilter> sync_msg_filter =
-      ChildThread::current()->sync_message_filter();
+  scoped_refptr<IPC::SyncMessageFilter> sync_msg_filter(
+      ChildThread::current()->sync_message_filter());
   return sync_msg_filter->Send(msg);
 }
 
 bool WorkerWebKitClientImpl::FileUtilities::getFileSize(const WebString& path,
                                                         long long& result) {
   if (SendSyncMessageFromAnyThread(new ViewHostMsg_GetFileSize(
           webkit_glue::WebStringToFilePath(path),
           reinterpret_cast<int64*>(&result)))) {
     return result >= 0;
   }
@@ skipping 186 matching lines @@
       new ViewHostMsg_GetPreferredExtensionForMimeType(UTF16ToASCII(mime_type),
           &file_extension));
   return webkit_glue::FilePathStringToWebString(file_extension);
 }
 
 WebBlobRegistry* WorkerWebKitClientImpl::blobRegistry() {
   if (!blob_registry_.get())
     blob_registry_.reset(new WebBlobRegistryImpl(WorkerThread::current()));
   return blob_registry_.get();
 }