Convert implicit scoped_refptr constructor calls to explicit ones, part 1

chrome/browser/browser_about_handler.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/browser/browser_about_handler.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 287 matching lines @@
   return chromeos::CrosLibrary::Get()->GetNetworkLibrary()->
       GetHtmlInfo(refresh);
 }
 #endif
 
 // AboutDnsHandler bounces the request back to the IO thread to collect
 // the DNS information.
 class AboutDnsHandler : public base::RefCountedThreadSafe<AboutDnsHandler> {
  public:
   static void Start(AboutSource* source, int request_id) {
-    scoped_refptr<AboutDnsHandler> handler =
-        new AboutDnsHandler(source, request_id);
+    scoped_refptr<AboutDnsHandler> handler(
+        new AboutDnsHandler(source, request_id));
     handler->StartOnUIThread();
   }
 
  private:
   AboutDnsHandler(AboutSource* source, int request_id)
       : source_(source),
         request_id_(request_id) {
     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   }
 
@@ skipping 849 matching lines @@
     // Run the dialog. This will re-use the existing one if it's already up.
     AboutIPCDialog::RunDialog();
     return true;
   }
 #endif
 
 #endif  // OFFICIAL_BUILD
 
   return false;
 }