Implement syncing of bookmark apps.

chrome/browser/extensions/bookmark_app_helper.h

 // Copyright 2014 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_EXTENSIONS_BOOKMARK_APP_HELPER_H_
 #define CHROME_BROWSER_EXTENSIONS_BOOKMARK_APP_HELPER_H_
 
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/common/web_application_info.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class ExtensionService;
 class FaviconDownloader;
 class SkBitmap;
 
 namespace content {
+class BrowserContext;
 class WebContents;
 }
 
 namespace extensions {
 class CrxInstaller;
 class Extension;
 
 // A helper class for creating bookmark apps from a WebContents.
 class BookmarkAppHelper : public content::NotificationObserver {
  public:
@@ skipping 52 matching lines @@
   scoped_refptr<extensions::CrxInstaller> crx_installer_;
 
   content::NotificationRegistrar registrar_;
 };
 
 // Creates or updates a bookmark app from the given |web_app_info|. Icons will
 // not be downloaded so only supplied icon data will be used.
 void CreateOrUpdateBookmarkApp(ExtensionService* service,
                                WebApplicationInfo& web_app_info);
 
+// Retrieves the WebApplicationInfo that represents a given bookmark app.
+// |callback| will be called with a WebApplicationInfo which is populated with
+// the extension's details and icons on success and an unpopulated
+// WebApplicationInfo on failure.
+void GetWebApplicationInfoFromApp(
+    content::BrowserContext* browser_context,
+    const extensions::Extension* extension,
+    const base::Callback<void(const WebApplicationInfo&)> callback);
+
 // Returns whether the given |url| is a valid bookmark app url.
 bool IsValidBookmarkAppUrl(const GURL& url);
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_BOOKMARK_APP_HELPER_H_