Avoid unnecessary URL parsing for GURL comparisons in //content

content/browser/frame_host/navigation_controller_impl.cc

 // Copyright 2013 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.
 
 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  *     (http://www.torchmobile.com/)
  *
@@ skipping 1445 matching lines @@
   WebPreferences prefs = rfh->GetRenderViewHost()->GetWebkitPreferences();
   const url::Origin& committed_origin =
       rfhi->frame_tree_node()->current_origin();
   bool is_same_origin = last_committed_url.is_empty() ||
                         // TODO(japhet): We should only permit navigations
                         // originating from about:blank to be in-page if the
                         // about:blank is the first document that frame loaded.
                         // We don't have sufficient information to identify
                         // that case at the moment, so always allow about:blank
                         // for now.
-                        last_committed_url == GURL(url::kAboutBlankURL) ||
+                        last_committed_url == url::kAboutBlankURL ||
                         last_committed_url.GetOrigin() == url.GetOrigin() ||
                         committed_origin == origin ||
                         !prefs.web_security_enabled ||
                         (prefs.allow_universal_access_from_file_urls &&
                          committed_origin.scheme() == url::kFileScheme);
   if (!is_same_origin && renderer_says_in_page) {
     bad_message::ReceivedBadMessage(rfh->GetProcess(),
                                     bad_message::NC_IN_PAGE_NAVIGATION);
   }
   return is_same_origin && renderer_says_in_page;
@@ skipping 612 matching lines @@
     }
   }
 }
 
 void NavigationControllerImpl::SetGetTimestampCallbackForTest(
     const base::Callback<base::Time()>& get_timestamp_callback) {
   get_timestamp_callback_ = get_timestamp_callback;
 }
 
 }  // namespace content