DownloadProvider.update()
DownloadProvider.insert()
DownloadHandler.startingDownload()
DownloadThread.transferData()
DownloadThread.run()
DownloadService.mUpdateHandler()
DownloadThread.executeDownload()
registerContentObserver
DownloadProvider.notifyContentChanged()
DownloadService.onCreate()
DownloadService.updateLocked()
DownloadInfo.startDownloadIfReady()
DownloadNotifier.updateWith()
DownloadManager.enqueue()
DownloadService.onStartCommand()
DownloadService.enqueueUpdate()
