Begin implementing V8 bindings for Mojo

gin/per_isolate_data.cc

 // 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.
 
 #include "gin/per_isolate_data.h"
 
 using v8::Eternal;
 using v8::Handle;
 using v8::Isolate;
 using v8::Local;
 using v8::Object;
 using v8::ObjectTemplate;
 
 namespace gin {
 
 PerIsolateData::PerIsolateData(Isolate* isolate)
     : isolate_(isolate)  {
   isolate_->SetData(this);
 }
 
 PerIsolateData::~PerIsolateData() {
 }
 
 PerIsolateData* PerIsolateData::From(Isolate* isolate) {
   return static_cast<PerIsolateData*>(isolate->GetData());
 }
 
-void PerIsolateData::RegisterObjectTemplate(
-    WrapperInfo* info, Local<ObjectTemplate> object_template) {
-  object_templates_[info] = Eternal<ObjectTemplate>(isolate_, object_template);
+void PerIsolateData::RegisterObjectTemplate(WrapperInfo* info,
+                                            Local<ObjectTemplate> templ) {
+  object_templates_[info] = Eternal<ObjectTemplate>(isolate_, templ);
+}
+
+bool PerIsolateData::GetObjectTemplate(WrapperInfo* info,

[Aaron Boodman, 2013/11/11 19:01:08]

You can avoid the two return values by having this function return
Local<ObjectTemplate> and having it be empty on failure.

[abarth-chromium, 2013/11/11 20:17:42]

Ok.

+                                       Local<ObjectTemplate>* out) {
+  ObjectTemplateMap::iterator it = object_templates_.find(info);
+  if (it == object_templates_.end())
+    return false;
+  *out = it->second.Get(isolate_);
+  return true;
 }
 
 }  // namespace gin