Stop using v8::Persistent in ObjectBackedNativeHandler

extensions/renderer/object_backed_native_handler.cc

 // Copyright 2014 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.
 
 #include "extensions/renderer/object_backed_native_handler.h"
 
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
 #include "extensions/renderer/console.h"
 #include "extensions/renderer/module_system.h"
@@ skipping 39 matching lines @@
       handler_function_value.As<v8::External>()->Value())->Run(args);
 }
 
 void ObjectBackedNativeHandler::RouteFunction(
     const std::string& name,
     const HandlerFunction& handler_function) {
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   v8::HandleScope handle_scope(isolate);
   v8::Context::Scope context_scope(context_->v8_context());
 
-  v8::Persistent<v8::Object> data(isolate, v8::Object::New(isolate));
-  v8::Local<v8::Object> local_data = v8::Local<v8::Object>::New(isolate, data);
-  local_data->Set(
+  v8::Local<v8::Object> data = v8::Object::New(isolate);
+  data->Set(
       v8::String::NewFromUtf8(isolate, kHandlerFunction),
       v8::External::New(isolate, new HandlerFunction(handler_function)));
   v8::Handle<v8::FunctionTemplate> function_template =
-      v8::FunctionTemplate::New(isolate, Router, local_data);
+      v8::FunctionTemplate::New(isolate, Router, data);
   object_template_.NewHandle(isolate)
       ->Set(isolate, name.c_str(), function_template);
-  router_data_.Append(local_data);
+  router_data_.Append(data);
 }
 
 v8::Isolate* ObjectBackedNativeHandler::GetIsolate() const {
   return context_->isolate();
 }
 
 void ObjectBackedNativeHandler::Invalidate() {
   if (!is_valid())
     return;
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   v8::HandleScope handle_scope(isolate);
   v8::Context::Scope context_scope(context_->v8_context());
 
   for (size_t i = 0; i < router_data_.Size(); i++) {
     v8::Handle<v8::Object> data = router_data_.Get(i);
     v8::Handle<v8::Value> handler_function_value =
         data->Get(v8::String::NewFromUtf8(isolate, kHandlerFunction));
     CHECK(!handler_function_value.IsEmpty());
     delete static_cast<HandlerFunction*>(
         handler_function_value.As<v8::External>()->Value());
     data->Delete(v8::String::NewFromUtf8(isolate, kHandlerFunction));
   }
   router_data_.Clear();
   object_template_.reset();
   context_ = NULL;
   NativeHandler::Invalidate();
 }
 
 }  // namespace extensions