Convert implicit scoped_refptr constructor calls to explicit ones, part 1

chrome/browser/themes/browser_theme_provider.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/themes/browser_theme_provider.h"
 
 #include "app/resource_bundle.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extensions_service.h"
@@ skipping 584 matching lines @@
 void BrowserThemeProvider::SavePackName(const FilePath& pack_path) {
   profile_->GetPrefs()->SetFilePath(
       prefs::kCurrentThemePackFilename, pack_path);
 }
 
 void BrowserThemeProvider::SaveThemeID(const std::string& id) {
   profile_->GetPrefs()->SetString(prefs::kCurrentThemeID, id);
 }
 
 void BrowserThemeProvider::BuildFromExtension(const Extension* extension) {
-  scoped_refptr<BrowserThemePack> pack =
-      BrowserThemePack::BuildFromExtension(extension);
+  scoped_refptr<BrowserThemePack> pack(
+      BrowserThemePack::BuildFromExtension(extension));
   if (!pack.get()) {
     // TODO(erg): We've failed to install the theme; perhaps we should tell the
     // user? http://crbug.com/34780
     LOG(ERROR) << "Could not load theme.";
     return;
   }
 
   // Write the packed file to disk.
   FilePath pack_path = extension->path().Append(chrome::kThemePackFilename);
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           new WritePackToDiskTask(pack, pack_path));
 
   SavePackName(pack_path);
   theme_pack_ = pack;
 }
 
 void BrowserThemeProvider::OnInfobarDisplayed() {
   number_of_infobars_++;
 }
 
 void BrowserThemeProvider::OnInfobarDestroyed() {
   number_of_infobars_--;
 
   if (number_of_infobars_ == 0)
     RemoveUnusedThemes();
 }