Start app shim when app launched.

apps/app_shim/app_shim_util.h

+// 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_UTIL_H_

[tapted, 2013/05/16 04:51:00]

this should have a _mac suffix too

+#define APPS_APP_SHIM_APP_SHIM_UTIL_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/files/file_path.h"
+
+namespace app_shim {

[tapted, 2013/05/16 04:51:00]

should just be namespace apps. There's some rule; a correspondence between
top-level folders and top-level namespaces

+
+// Returns the directory where app shim bundles are stored, or an empty path if
+// no such path exists (for example, if there is no Applications directory).
+base::FilePath GetAppShimFolder();
+
+void FindAndLaunchShimForApp(const std::string& app_id,
+                             const std::string& profile_name,
+                             base::Callback<void(bool)> completed);
+
+}  // namespace app_shim
+
+#endif  // APPS_APP_SHIM_APP_SHIM_UTIL_H_