Set prop app id for chromium/application shortcut.

chrome/browser/web_applications/web_app.h

 // Copyright (c) 2009 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_BROWSER_WEB_APPLICATIONS_WEB_APP_H_
 #define CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_H_
 
 #include "base/file_path.h"
 #include "base/task.h"
 #include "chrome/browser/shell_integration.h"
 
 namespace web_app {
 
+// Compute a deterministic name based on the URL. We use this pseudo name
+// as a key to store window location per application URLs in Browser and
+// as app id for BrowserWindow, shortcut and jump list.
+std::wstring GenerateApplicationNameFromURL(const GURL& url);
+
 // Callback after user dismisses CreateShortcutView. "true" indicates
 // shortcut is created successfully. Otherwise, it is false.
 typedef Callback1<bool>::Type CreateShortcutCallback;
 
 // Creates a shortcut for web application based on given shortcut data.
 // |root_dir| is used as root directory for persisted data such as icon.
 // Directory layout is similar to what Gears has, i.e. an web application's
 // file is stored under "#/host_name/scheme_port", where '#' is the
 // |root_dir|.
 void CreateShortcut(
     const FilePath& data_dir,
     const ShellIntegration::ShortcutInfo& shortcut_info,
     CreateShortcutCallback* callback);
 
 };  // namespace web_app
 
 #endif  // CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_H_