Move Extension into extensions namespace

chrome/browser/extensions/extension_tab_util.cc

 // Copyright (c) 2012 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_tab_util.h"
 
 #include "chrome/browser/extensions/extension_tabs_module_constants.h"
 #include "chrome/browser/net/url_fixer_upper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/restore_tab_helper.h"
@@ skipping 189 matching lines @@
             *tab_index = i;
           return true;
         }
       }
     }
   }
   return false;
 }
 
 GURL ExtensionTabUtil::ResolvePossiblyRelativeURL(const std::string& url_string,
-                                                  const Extension* extension) {
+    const extensions::Extension* extension) {
   GURL url = GURL(url_string);
   if (!url.is_valid())
     url = extension->GetResourceURL(url_string);
 
   return url;
 }
 
 bool ExtensionTabUtil::IsCrashURL(const GURL& url) {
   // Check a fixed-up URL, to normalize the scheme and parse hosts correctly.
   GURL fixed_url =
       URLFixerUpper::FixupURL(url.possibly_invalid_spec(), std::string());
   return (fixed_url.SchemeIs(chrome::kChromeUIScheme) &&
           (fixed_url.host() == chrome::kChromeUIBrowserCrashHost ||
            fixed_url.host() == chrome::kChromeUICrashHost));
 }