Add a simple one shot and repeating timer API for Mojo.js.

mojo/apps/js/bindings/core.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 "mojo/apps/js/bindings/core.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "gin/arguments.h"
 #include "gin/array_buffer.h"
@@ skipping 70 matching lines @@
   dictionary.Set("handles", handles);
   return dictionary;
 }
 
 gin::WrapperInfo g_wrapper_info = { gin::kEmbedderNativeGin };
 
 }  // namespace
 
 const char Core::kModuleName[] = "mojo/apps/js/bindings/core";
 
-v8::Local<v8::ObjectTemplate> Core::GetTemplate(v8::Isolate* isolate) {
+v8::Local<v8::Value> Core::GetModule(v8::Isolate* isolate) {
   gin::PerIsolateData* data = gin::PerIsolateData::From(isolate);
   v8::Local<v8::ObjectTemplate> templ = data->GetObjectTemplate(
       &g_wrapper_info);
 
   if (templ.IsEmpty()) {
      templ = gin::ObjectTemplateBuilder(isolate)
         .SetMethod("close", mojo::CloseRaw)
         .SetMethod("wait", mojo::Wait)
         .SetMethod("waitMany", mojo::WaitMany<std::vector<mojo::Handle>,
                                               std::vector<MojoWaitFlags> >)
@@ skipping 32 matching lines @@
         .SetValue("WRITE_MESSAGE_FLAG_NONE", MOJO_WRITE_MESSAGE_FLAG_NONE)
 
         .SetValue("READ_MESSAGE_FLAG_NONE", MOJO_READ_MESSAGE_FLAG_NONE)
         .SetValue("READ_MESSAGE_FLAG_MAY_DISCARD",
                   MOJO_READ_MESSAGE_FLAG_MAY_DISCARD)
         .Build();
 
     data->SetObjectTemplate(&g_wrapper_info, templ);
   }
 
-  return templ;
+  return templ->NewInstance();
 }
 
 }  // namespace js
 }  // namespace mojo