Support "Pin to taskbar" for hosted app windows.

chrome/browser/web_applications/web_app_win.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 CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_WIN_H_
 #define CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_WIN_H_
 
 #include "base/files/file_path.h"
 #include "chrome/browser/shell_integration.h"
 
+class Profile;
+
 namespace content {
 class WebContents;
 }
 
+namespace extensions {
+class Extension;
+}
+
 namespace gfx {
 class ImageFamily;
 }
 
 namespace web_app {
 
 // Create a shortcut in the given web app data dir, returning the name of the
 // created shortcut.
 base::FilePath CreateShortcutInWebAppDir(
     const base::FilePath& web_app_path,
     const ShellIntegration::ShortcutInfo& shortcut_info);
 
+// Update the relaunch details for the given app's window, making the taskbar
+// group's "Pin to the taskbar" button function correctly.
+void UpdateRelaunchDetailsForApp(Profile* profile,
+                                 const extensions::Extension* extension,
+                                 HWND hwnd);
+
 namespace internals {
 
 bool CheckAndSaveIcon(const base::FilePath& icon_file,
                       const gfx::ImageFamily& image);
 
 base::FilePath GetIconFilePath(const base::FilePath& web_app_path,
                                const base::string16& title);
 
 }  // namespace internals
 
 }  // namespace web_app
 
 #endif  // CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_WIN_H_