Infrastructure to improve app mode stub <-> Chrome main communication.

chrome/common/app_mode.cc

+// Copyright (c) 2012 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 "chrome/common/app_mode.h"
+
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+
+namespace app_mode {
+
+bool IsRunningInAppMode() {
+  CommandLine* cl = CommandLine::ForCurrentProcess();
+  return cl->HasSwitch(switches::kApp) || cl->HasSwitch(switches::kAppId);
+}
+
+}  // namespace app_mode
+