NTP: Use the store as the last thumbnail in case we have no apps installed....

chrome/browser/extensions/extensions_service.cc

Index: chrome/browser/extensions/extensions_service.cc
===================================================================
--- chrome/browser/extensions/extensions_service.cc	(revision 52778)
+++ chrome/browser/extensions/extensions_service.cc	(working copy)
@@ -1140,7 +1140,19 @@
   }
 }
 
+bool ExtensionsService::HasApps() {
+  if (!extensions_enabled_)
+    return false;
 
+  for (ExtensionList::const_iterator it = extensions_.begin();
+       it != extensions_.end(); ++it) {
+    if ((*it)->is_app())
+      return true;
+  }
+
+  return false;
+}
+
 // ExtensionsServicesBackend
 
 ExtensionsServiceBackend::ExtensionsServiceBackend(