Start app shim when app launched.

apps/app_shim/app_shim_launch.h

Index: apps/app_shim/app_shim_launch.h
diff --git a/apps/app_shim/app_shim_launch.h b/apps/app_shim/app_shim_launch.h
new file mode 100644
index 0000000000000000000000000000000000000000..2c71333b2e0dad2eba7dd29867776dc4a07169f3
--- /dev/null
+++ b/apps/app_shim/app_shim_launch.h
@@ -0,0 +1,20 @@
+// 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.
+
+#ifndef APPS_APP_SHIM_APP_SHIM_LAUNCH_H_
+#define APPS_APP_SHIM_APP_SHIM_LAUNCH_H_
+
+namespace apps {
+
+enum AppShimLaunchType {
+  // Process the app shim's LaunchAppmessage and associate the shim with the
+  // given profile and app id.
+  APP_SHIM_LAUNCH_REGISTER_ONLY = 0,
+  // Do the above and launch the app.
+  APP_SHIM_LAUNCH_NORMAL,
+};
+
+}  // namespace apps
+
+#endif  // APPS_APP_SHIM_APP_SHIM_LAUNCH_H_