Add support for wrapping classes indirectly inherited from gin::Wrappable<T>

content/renderer/stats_collection_controller.h

Index: content/renderer/stats_collection_controller.h
diff --git a/content/renderer/stats_collection_controller.h b/content/renderer/stats_collection_controller.h
index 91b3748d60e75ba52577a52762d7408a0fde4fe5..279fed7602d79930dd55a6011fd0bb4af7a050f9 100644
--- a/content/renderer/stats_collection_controller.h
+++ b/content/renderer/stats_collection_controller.h
@@ -22,7 +22,6 @@ class StatsCollectionController
     : public gin::Wrappable<StatsCollectionController> {
  public:
   static gin::WrapperInfo kWrapperInfo;
-  static v8::Local<v8::ObjectTemplate> GetObjectTemplate(v8::Isolate* isolate);
 
   static void Install(blink::WebFrame* frame);
 
@@ -30,6 +29,10 @@ class StatsCollectionController
   StatsCollectionController();
   virtual ~StatsCollectionController();
 
+  // gin::WrappableBase
+  virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
+      v8::Isolate* isolate) OVERRIDE;
+
   // Retrieves a histogram and returns a JSON representation of it.
   std::string GetHistogram(const std::string& histogram_name);