Apps on NTP should be in order of installation

chrome/browser/extensions/extension_updater.cc

Index: chrome/browser/extensions/extension_updater.cc
diff --git a/chrome/browser/extensions/extension_updater.cc b/chrome/browser/extensions/extension_updater.cc
index 04f5c293ec6bc4f073a4a08fd55bda94bdec6610..0d4ff6be3e63f45db6e66009f22f47f394eef287 100644
--- a/chrome/browser/extensions/extension_updater.cc
+++ b/chrome/browser/extensions/extension_updater.cc
@@ -1035,10 +1035,10 @@ void ExtensionUpdater::CheckNow() {
   const PendingExtensionManager* pending_extension_manager =
       service_->pending_extension_manager();
 
-  std::set<std::string> pending_ids;
+  std::list<std::string> pending_ids;
   pending_extension_manager->GetPendingIdsForUpdateCheck(&pending_ids);
 
-  std::set<std::string>::const_iterator iter;
+  std::list<std::string>::const_iterator iter;
   for (iter = pending_ids.begin(); iter != pending_ids.end(); ++iter) {
     PendingExtensionInfo info;
     bool found_id = pending_extension_manager->GetById(*iter, &info);
@@ -1060,7 +1060,7 @@ void ExtensionUpdater::CheckNow() {
     // An extension might be overwritten by policy, and have its update url
     // changed. Make sure existing extensions aren't fetched again, if a
     // pending fetch for an extension with the same id already exists.
-    if (!ContainsKey(pending_ids, (*iter)->id())) {
+    if (!pending_extension_manager->IsIdPending((*iter)->id())) {
       fetches_builder.AddExtension(**iter);
     }
   }