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

chrome/common/app_mode.h

Index: chrome/common/app_mode.h
diff --git a/chrome/common/app_mode.h b/chrome/common/app_mode.h
new file mode 100644
index 0000000000000000000000000000000000000000..1b6b137c08620ba5ea87299b6f89748a900d8b28
--- /dev/null
+++ b/chrome/common/app_mode.h
@@ -0,0 +1,15 @@
+// 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.
+
+#ifndef CHROME_COMMON_APP_MODE_H_
+#define CHROME_COMMON_APP_MODE_H_
+#pragma once
+
+namespace app_mode {
+
+bool IsRunningInAppMode();

[sail, 2012/03/06 23:29:23]

Should this move into shell_integration.h? If not then should SetAppModeInfo()
move into this file?

+
+}  // namespace app_mode
+
+#endif  // CHROME_COMMON_APP_MODE_H_