Add x-platform update indicator

Summary: Use the new multi-platform update endpoint to indicate when new updates are available for Linux or Windows.

Reviewed By: danielbuechele

Differential Revision: D16939899

fbshipit-source-id: 11c1dc0d4fd19362a1163c613a7b7116c5edf996

src/chrome/TitleBar.tsx

@@ -171,7 +171,10 @@ class TitleBar extends React.Component<Props, StateFromProps> {
         {isAutoUpdaterEnabled() ? (
           <AutoUpdateVersion version={this.props.version} />
         ) : (
-          <UpdateIndicator launcherMsg={this.props.launcherMsg} />
+          <UpdateIndicator
+            launcherMsg={this.props.launcherMsg}
+            version={this.props.version}
+          />
         )}
         {config.bugReportButtonVisible && (
           <Button