Add generateAppForLink function in chrome.management

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>
@@ skipping 19 matching lines @@
 class Extension;
 
 // A helper class for creating bookmark apps from a WebContents.
 class BookmarkAppHelper : public content::NotificationObserver {
  public:
   typedef base::Callback<void(const Extension*, const WebApplicationInfo&)>
       CreateBookmarkAppCallback;
 
   // This helper class will create a bookmark app out of |web_app_info| and
   // install it to |service|. Icons will be downloaded from the URLs in
-  // |web_app_info.icons| using |contents|.
+  // |web_app_info.icons| using |contents| if |contents| is not NULL.
+  // All existing icons from WebApplicationInfo will also be used.
   BookmarkAppHelper(ExtensionService* service,
                     WebApplicationInfo web_app_info,
                     content::WebContents* contents);
   virtual ~BookmarkAppHelper();
 
   // This finds the closest not-smaller bitmap in |bitmaps| for each size in
   // |sizes| and resizes it to that size. This returns a map of sizes to bitmaps
   // which contains only bitmaps of a size in |sizes| and at most one bitmap of
   // each size.
   static std::map<int, SkBitmap> ConstrainBitmapsToSizes(
@@ skipping 52 matching lines @@
     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_