mozilla-services/android-sync — pull request #244 by ncalexan (2012-08-17 00:40:44+00:00)
Title: Bug 780279 - Expose SyncAccounts.requestImmediateSync().

This is the Sync side of things: exposes a convenience method. You'll need the Fennec side of things (calling said convenience method) from https://bugzilla.mozilla.org/show_bug.cgi?id=780279.