Convert implicit scoped_refptr constructor calls to explicit ones, part 1

chrome/browser/extensions/extension_process_manager.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/extensions/extension_process_manager.h"
 
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/browsing_instance.h"
 #if defined(OS_MACOSX)
@@ skipping 236 matching lines @@
       process_ids_.erase(it++);
     else
       ++it;
   }
 }
 
 RenderProcessHost* ExtensionProcessManager::GetExtensionProcess(
     const GURL& url) {
   if (!browsing_instance_->HasSiteInstance(url))
     return NULL;
-  scoped_refptr<SiteInstance> site =
-      browsing_instance_->GetSiteInstanceForURL(url);
+  scoped_refptr<SiteInstance> site(
+      browsing_instance_->GetSiteInstanceForURL(url));
   if (site->HasProcess())
     return site->GetProcess();
   return NULL;
 }
 
 RenderProcessHost* ExtensionProcessManager::GetExtensionProcess(
     const std::string& extension_id) {
   return GetExtensionProcess(
       Extension::GetBaseURLFromExtensionId(extension_id));
 }
@@ skipping 188 matching lines @@
         if (service && service->is_ready())
           CreateBackgroundHosts(this, service->extensions());
       }
       break;
     }
     default:
       ExtensionProcessManager::Observe(type, source, details);
       break;
   }
 }