Move the plugin placeholder from CppBoundClass to gin::Wrappable

gin/wrappable_unittest.cc

Index: gin/wrappable_unittest.cc
diff --git a/gin/wrappable_unittest.cc b/gin/wrappable_unittest.cc
index 35035ce19d74916ff62fc5977491a12a34bc4797..68bdb60bf4155b6dd4dd5aabdd22cac93c7b1434 100644
--- a/gin/wrappable_unittest.cc
+++ b/gin/wrappable_unittest.cc
@@ -19,8 +19,6 @@ class MyObject : public Wrappable<MyObject> {
  public:
   static WrapperInfo kWrapperInfo;
 
-  static v8::Local<v8::ObjectTemplate> GetObjectTemplate(v8::Isolate* isolate);
-
   static gin::Handle<MyObject> Create(v8::Isolate* isolate) {
     return CreateHandle(isolate, new MyObject());
   }
@@ -29,6 +27,9 @@ class MyObject : public Wrappable<MyObject> {
   void set_value(int value) { value_ = value; }
 
  private:
+  virtual ObjectTemplateBuilder GetObjectTemplateBuilder(
+      v8::Isolate* isolate) OVERRIDE;
+
   MyObject() : value_(0) {}
   virtual ~MyObject() {}
 
@@ -46,11 +47,9 @@ class MyObjectBlink : public Wrappable<MyObjectBlink> {
 };
 
 WrapperInfo MyObject::kWrapperInfo = { kEmbedderNativeGin };
-v8::Local<v8::ObjectTemplate> MyObject::GetObjectTemplate(
-    v8::Isolate* isolate) {
-  return ObjectTemplateBuilder(isolate)
-      .SetProperty("value", &MyObject::value, &MyObject::set_value)
-      .Build();
+ObjectTemplateBuilder MyObject::GetObjectTemplateBuilder(v8::Isolate* isolate) {
+  return Wrappable<MyObject>::GetObjectTemplateBuilder(isolate)
+      .SetProperty("value", &MyObject::value, &MyObject::set_value);
 }
 
 WrapperInfo MyObject2::kWrapperInfo = { kEmbedderNativeGin };