Convert the rest of the functions in core.cc to use CreateFunctionTemplate.

gin/wrappable.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef GIN_WRAPPABLE_H_
 #define GIN_WRAPPABLE_H_
 
 #include "base/memory/ref_counted.h"
 #include "gin/converter.h"
 #include "gin/public/wrapper_info.h"
@@ skipping 20 matching lines @@
 
   v8::Persistent<v8::Object> wrapper_;  // Weak
 
   DISALLOW_COPY_AND_ASSIGN(Wrappable);
 };
 
 template<>
 struct Converter<Wrappable*> {
   static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
                                     Wrappable* val);
-  static bool FromV8(v8::Handle<v8::Value> val,
+  static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
                      Wrappable** out);
 };
 
 template<typename T>
 struct WrappableConverter {
   static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, T* val) {
     return Converter<Wrappable*>::ToV8(isolate, val);
   }
-  static bool FromV8(v8::Handle<v8::Value> val, T** out) {
+  static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val, T** out) {
     Wrappable* wrappable = 0;
-    if (!Converter<Wrappable*>::FromV8(val, &wrappable)
+    if (!Converter<Wrappable*>::FromV8(isolate, val, &wrappable)
         || wrappable->GetWrapperInfo() != &T::kWrapperInfo)
       return false;
     *out = static_cast<T*>(wrappable);
     return true;
   }
 };
 
 }  // namespace gin
 
 #endif  // GIN_WRAPPABLE_H_