Moves around mojo js bindings code

mojo/apps/js/bindings/support.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/support.h"
-
-#include "base/bind.h"
-#include "gin/arguments.h"
-#include "gin/converter.h"
-#include "gin/function_template.h"
-#include "gin/object_template_builder.h"
-#include "gin/per_isolate_data.h"
-#include "gin/public/wrapper_info.h"
-#include "gin/wrappable.h"
-#include "mojo/apps/js/bindings/handle.h"
-#include "mojo/apps/js/bindings/waiting_callback.h"
-#include "mojo/public/environment/default_async_waiter.h"
-#include "mojo/public/system/core_cpp.h"
-
-namespace mojo {
-namespace js {
-
-namespace {
-
-WaitingCallback* AsyncWait(const gin::Arguments& args, mojo::Handle handle,
-                           MojoWaitFlags flags,
-                           v8::Handle<v8::Function> callback) {
-  gin::Handle<WaitingCallback> waiting_callback =
-      WaitingCallback::Create(args.isolate(), callback);
-
-  MojoAsyncWaiter* waiter = GetDefaultAsyncWaiter();
-  MojoAsyncWaitID wait_id = waiter->AsyncWait(
-      waiter,
-      handle.value(),
-      flags,
-      MOJO_DEADLINE_INDEFINITE,
-      &WaitingCallback::CallOnHandleReady,
-      waiting_callback.get());
-
-  waiting_callback->set_wait_id(wait_id);
-
-  return waiting_callback.get();
-}
-
-void CancelWait(WaitingCallback* waiting_callback) {
-  if (!waiting_callback->wait_id())
-    return;
-
-  MojoAsyncWaiter* waiter = GetDefaultAsyncWaiter();
-  waiter->CancelWait(waiter, waiting_callback->wait_id());
-  waiting_callback->set_wait_id(0);
-}
-
-gin::WrapperInfo g_wrapper_info = { gin::kEmbedderNativeGin };
-
-}  // namespace
-
-const char Support::kModuleName[] = "mojo/apps/js/bindings/support";
-
-v8::Local<v8::Value> Support::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("asyncWait", AsyncWait)
-                .SetMethod("cancelWait", CancelWait)
-                .Build();
-
-    data->SetObjectTemplate(&g_wrapper_info, templ);
-  }
-
-  return templ->NewInstance();
-}
-
-}  // namespace js
-}  // namespace mojo