Track DownloadProvider && PackageInstaller

Change-Id: I1c22fea776575bfda92200d4fe8b0bb41179e33c
Track our own webview

Change-Id: Ia9d833575d39a3fe16bfd6456a168499ed9c69d7
Merge "Track our own webview" into pac-4.4
Merge branch 'pac-4.4' of git://github.com/PAC-man/pacman into pac-4.4