Merge the Sky Engine changes from the SkyDart branch

sky/engine/core/app/ModuleLoader.cpp

-// 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 "sky/engine/config.h"
-#include "sky/engine/core/app/ModuleLoader.h"
-
-#include "base/bind.h"
-#include "sky/engine/core/app/Application.h"
-#include "sky/engine/core/app/Module.h"
-#include "sky/engine/core/dom/Document.h"
-#include "sky/engine/core/dom/DocumentParser.h"
-#include "sky/engine/wtf/text/WTFString.h"
-
-namespace blink {
-
-ModuleLoader::Client::~Client() {
-}
-
-ModuleLoader::ModuleLoader(Client* client,
-                           Application* application,
-                           const KURL& url)
-    : state_(LOADING),
-      client_(client),
-      application_(application),
-      fetcher_(adoptPtr(new MojoFetcher(this, url))),
-      weak_factory_(this) {
-}
-
-ModuleLoader::~ModuleLoader() {
-}
-
-void ModuleLoader::OnReceivedResponse(mojo::URLResponsePtr response) {
-  if (response->error || response->status_code >= 400) {
-    String message = String::format(
-        "Failed to load resource: Server responded with a status of %d (%s)",
-        response->status_code, response->status_line.data());
-    RefPtr<ConsoleMessage> consoleMessage = ConsoleMessage::create(
-        NetworkMessageSource, ErrorMessageLevel, message, response->url.data());
-    application_->document()->addMessage(consoleMessage);
-    state_ = COMPLETE;
-    client_->OnModuleLoadComplete(this, nullptr);
-    return;
-  }
-
-  WeakPtr<Document> context = application_->document()->contextDocument();
-  ASSERT(context.get());
-  KURL url(ParsedURLString, String::fromUTF8(response->url));
-  DocumentInit init = DocumentInit(url, 0, context, 0)
-      .withRegistrationContext(context->registrationContext());
-
-  RefPtr<Document> document = Document::create(init);
-  document->startParsing()->parse(response->body.Pass(),
-      base::Bind(&ModuleLoader::OnParsingComplete, weak_factory_.GetWeakPtr()));
-
-  module_ = Module::create(
-      context.get(), application_, document.release(), url.string());
-}
-
-void ModuleLoader::OnParsingComplete() {
-  state_ = COMPLETE;
-  client_->OnModuleLoadComplete(this, module_.get());
-}
-
-} // namespace blink