Add a new GetInstance() method for singleton classes, take 2.

chrome/renderer/extensions/bindings_utils.cc

Index: chrome/renderer/extensions/bindings_utils.cc
diff --git a/chrome/renderer/extensions/bindings_utils.cc b/chrome/renderer/extensions/bindings_utils.cc
index 83ddeee138881634e47c9484f45166d0741c47ae..5b213c46469fa155eb154491e3e6159c00f4804a 100644
--- a/chrome/renderer/extensions/bindings_utils.cc
+++ b/chrome/renderer/extensions/bindings_utils.cc
@@ -22,6 +22,20 @@ struct SingletonData {
   PendingRequestMap pending_requests;
 };
 
+typedef std::map<int, std::string> StringMap;
+
+const char* GetStringResource(int resource_id) {
+  StringMap* strings = Singleton<StringMap>::get();
+  StringMap::iterator it = strings->find(resource_id);
+  if (it == strings->end()) {
+    it = strings->insert(std::make_pair(
+        resource_id,
+        ResourceBundle::GetSharedInstance().GetRawDataResource(
+            resource_id).as_string())).first;
+  }
+  return it->second.c_str();
+}
+
 // ExtensionBase
 
 v8::Handle<v8::FunctionTemplate>