Move ExtensionSystem into extensions namespace

chrome/browser/ui/webui/extensions/extension_info_ui.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/ui/webui/extensions/extension_info_ui.h"
 
 #include "base/i18n/time_formatting.h"
 #include "base/stringprintf.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
@@ skipping 34 matching lines @@
 }
 
 // static
 GURL ExtensionInfoUI::GetURL(const std::string& extension_id) {
   return GURL(base::StringPrintf(
       "%s%s", chrome::kChromeUIExtensionInfoURL, extension_id.c_str()));
 }
 
 void ExtensionInfoUI::AddExtensionDataToSource(
     const std::string& extension_id) {
-  ExtensionService* extension_service =
-      ExtensionSystem::Get(Profile::FromWebUI(web_ui()))->extension_service();
+  ExtensionService* extension_service = extensions::ExtensionSystem::Get(
+      Profile::FromWebUI(web_ui()))->extension_service();
   const extensions::Extension* extension =
       extension_service->extensions()->GetByID(extension_id);
   if (!extension)
     return;
 
   extension->GetBasicInfo(true, source_->localized_strings());
 
   // Set the icon URL.
   GURL icon =
       ExtensionIconSource::GetIconURL(extension,
                                       ExtensionIconSet::EXTENSION_ICON_MEDIUM,
                                       ExtensionIconSet::MATCH_BIGGER,
                                       false, NULL);
   source_->AddString("icon", UTF8ToUTF16(icon.spec()));
   // Set the last update time (the install time).
   base::Time install_time = extension_service->extension_prefs()->
       GetInstallTime(extension_id);
   source_->AddString("installTime", base::TimeFormatShortDate(install_time));
 }