Add asar:// protocol handler.

atom/browser/net/asar/asar_protocol_handler.cc

@@ -0,0 +1,33 @@
+// Copyright (c) 2014 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/browser/net/asar/asar_protocol_handler.h"
+
+#include "net/base/filename_util.h"
+#include "net/url_request/url_request_file_job.h"
+
+namespace asar {
+
+AsarProtocolHandler::AsarProtocolHandler(
+    const scoped_refptr<base::TaskRunner>& file_task_runner)
+    : file_task_runner_(file_task_runner) {
+}
+
+AsarProtocolHandler::~AsarProtocolHandler() {
+}
+
+net::URLRequestJob* AsarProtocolHandler::MaybeCreateJob(
+    net::URLRequest* request,
+    net::NetworkDelegate* network_delegate) const {
+  base::FilePath file_path;
+  net::FileURLToFilePath(request->url(), &file_path);
+  return new net::URLRequestFileJob(request, network_delegate, file_path,
+                                    file_task_runner_);
+}
+
+bool AsarProtocolHandler::IsSafeRedirectTarget(const GURL& location) const {
+  return false;
+}
+
+}  // namespace asar