Move ExtensionSystem into extensions namespace

chrome/browser/extensions/extension_context_menu_browsertest.cc

Index: chrome/browser/extensions/extension_context_menu_browsertest.cc
diff --git a/chrome/browser/extensions/extension_context_menu_browsertest.cc b/chrome/browser/extensions/extension_context_menu_browsertest.cc
index 0338d1135f887de2f3bc47e1d67ee113dbeb85e9..7d78a38d75628b4c4c9733b795e31d43e1d96e25 100644
--- a/chrome/browser/extensions/extension_context_menu_browsertest.cc
+++ b/chrome/browser/extensions/extension_context_menu_browsertest.cc
@@ -533,7 +533,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionContextMenuBrowserTest, PolicyDisablesItems) {
   scoped_refptr<ExtensionContextMenuModel> menu(
       new ExtensionContextMenuModel(extension, browser(), NULL));
 
-  ExtensionSystem::Get(
+  extensions::ExtensionSystem::Get(
       browser()->profile())->management_policy()->UnregisterAllProviders();
 
   // Actions should be enabled.
@@ -542,7 +542,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionContextMenuBrowserTest, PolicyDisablesItems) {
 
   extensions::TestManagementPolicyProvider policy_provider(
     extensions::TestManagementPolicyProvider::PROHIBIT_MODIFY_STATUS);
-  ExtensionSystem::Get(
+  extensions::ExtensionSystem::Get(
       browser()->profile())->management_policy()->RegisterProvider(
       &policy_provider);