Add generateAppForLink function in chrome.management

chrome/browser/extensions/bookmark_app_helper.cc

Index: chrome/browser/extensions/bookmark_app_helper.cc
===================================================================
--- chrome/browser/extensions/bookmark_app_helper.cc	(revision 274309)
+++ chrome/browser/extensions/bookmark_app_helper.cc	(working copy)
@@ -183,6 +183,9 @@
 
   crx_installer_->set_error_on_unsupported_requirements(true);
 
+  if (!contents)
+    return;
+
   // Add urls from the WebApplicationInfo.
   std::vector<GURL> web_app_info_icon_urls;
   for (std::vector<WebApplicationInfo::IconInfo>::const_iterator it =
@@ -204,7 +207,11 @@
 
 void BookmarkAppHelper::Create(const CreateBookmarkAppCallback& callback) {
   callback_ = callback;
-  favicon_downloader_->Start();
+
+  if (favicon_downloader_.get())
+    favicon_downloader_->Start();
+  else
+    OnIconsDownloaded(true, std::map<GURL, std::vector<SkBitmap> >());
 }
 
 void BookmarkAppHelper::OnIconsDownloaded(
@@ -239,6 +246,18 @@
     }
   }
 
+  // Add all existing icons from WebApplicationInfo.
+  for (std::vector<WebApplicationInfo::IconInfo>::const_iterator it =
+           web_app_info_.icons.begin();
+       it != web_app_info_.icons.end();
+       ++it) {
+    const SkBitmap& icon = it->data;
+    if (!icon.drawsNothing() && icon.width() == icon.height())
+      downloaded_icons.push_back(icon);
+  }
+
+  web_app_info_.icons.clear();
+
   // If there are icons that don't match the accepted icon sizes, find the
   // closest bigger icon to the accepted sizes and resize the icon to it. An
   // icon will be resized and used for at most one size.