Convert implicit scoped_refptr constructor calls to explicit ones, part 1

chrome/common/webmessageportchannel_impl.cc

 // Copyright (c) 2009 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/common/webmessageportchannel_impl.h"
 
 #include "chrome/common/child_process.h"
 #include "chrome/common/child_thread.h"
 #include "chrome/common/worker_messages.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebString.h"
@@ skipping 51 matching lines @@
 
   // Release the object on the main thread, since the destructor might want to
   // send an IPC, and that has to happen on the main thread.
   ChildThread::current()->message_loop()->ReleaseSoon(FROM_HERE, this);
 }
 
 void WebMessagePortChannelImpl::entangle(WebMessagePortChannel* channel) {
   // The message port ids might not be set up yet, if this channel wasn't
   // created on the main thread.  So need to wait until we're on the main thread
   // before getting the other message port id.
-  scoped_refptr<WebMessagePortChannelImpl> webchannel =
-      static_cast<WebMessagePortChannelImpl*>(channel);
+  scoped_refptr<WebMessagePortChannelImpl> webchannel(
+      static_cast<WebMessagePortChannelImpl*>(channel));
   Entangle(webchannel);
 }
 
 void WebMessagePortChannelImpl::postMessage(
     const WebString& message,
     WebMessagePortChannelArray* channels) {
   if (MessageLoop::current() != ChildThread::current()->message_loop()) {
     ChildThread::current()->message_loop()->PostTask(FROM_HERE,
         NewRunnableMethod(this, &WebMessagePortChannelImpl::postMessage,
             message, channels));
@@ skipping 148 matching lines @@
 
   message_port_id_ = MSG_ROUTING_NONE;
 
   Release();
   ChildProcess::current()->ReleaseProcess();
 }
 
 WebMessagePortChannelImpl::Message::Message() {}
 
 WebMessagePortChannelImpl::Message::~Message() {}