Move c/c/e/extension_set to top-level extensions/

chrome/browser/devtools/devtools_window.cc

Index: chrome/browser/devtools/devtools_window.cc
diff --git a/chrome/browser/devtools/devtools_window.cc b/chrome/browser/devtools/devtools_window.cc
index 9740c733ff4c80a449476b34fbecc2257e58cf59..cb5125b68d58fcb1e78a491d750d667a59e94c60 100644
--- a/chrome/browser/devtools/devtools_window.cc
+++ b/chrome/browser/devtools/devtools_window.cc
@@ -1472,10 +1472,10 @@ void DevToolsWindow::AddDevToolsExtensionsToClient() {
       profile->GetOriginalProfile())->extension_service();
   if (!extension_service)
     return;
-  const ExtensionSet* extensions = extension_service->extensions();
+  const extensions::ExtensionSet* extensions = extension_service->extensions();
 
   ListValue results;
-  for (ExtensionSet::const_iterator extension(extensions->begin());
+  for (extensions::ExtensionSet::const_iterator extension(extensions->begin());
        extension != extensions->end(); ++extension) {
     if (extensions::ManifestURL::GetDevToolsPage(extension->get()).is_empty())
       continue;