Enhance chrome.app.window API for shelf integration with restore support

chrome/browser/ui/extensions/app_launch_params.h

 // 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_BROWSER_UI_EXTENSIONS_APP_LAUNCH_PARAMS_H_
 #define CHROME_BROWSER_UI_EXTENSIONS_APP_LAUNCH_PARAMS_H_
 
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 22 matching lines @@
   AppLaunchParams(const AppLaunchParams& other);
 
   ~AppLaunchParams();
 
   // The profile to load the application from.
   Profile* profile;
 
   // The extension to load.
   std::string extension_id;
 
+  // An id that can be passed to an app when launched in order to support
+  // multiple shelf items per app.
+  std::string launch_id;
+
   // The container type to launch the application in.
   extensions::LaunchContainer container;
 
   // If container is TAB, this field controls how the tab is opened.
   WindowOpenDisposition disposition;
 
   // If non-empty, use override_url in place of the application's launch url.
   GURL override_url;
 
   // If non-empty, use override_boudns in place of the application's default
@@ skipping 27 matching lines @@
 // Helper to create AppLaunchParams using event flags that allows user to
 // override the user-configured container using modifier keys, falling back to
 // extensions::GetLaunchContainer() with no modifiers.
 AppLaunchParams CreateAppLaunchParamsWithEventFlags(
     Profile* profile,
     const extensions::Extension* extension,
     int event_flags,
     extensions::AppLaunchSource source);
 
 #endif  // CHROME_BROWSER_UI_EXTENSIONS_APP_LAUNCH_PARAMS_H_