tree afcc0a214d305c6ea1cfb07f8d86e281cedee197
parent c1fc8fc6e7a80f8d09cea0ce94a3302b5b623c23
author Jeff Sharkey <jsharkey@android.com> 1480547220 -0700
committer gitbuildkicker <android-build@google.com> 1481763186 -0800

DO NOT MERGE. Retain DownloadManager Uri grants when clearing.

As part of fixing a recent security issue, DownloadManager now needs
to issue Uri permission grants for all downloads.  However, if an app
that requested a download is upgraded or otherwise force-stopped,
the required permission grants are removed.

We could tell DownloadManager about the app being stopped, but that
would be racy (due to background broadcast), and waking it up would
degrade system health.  Instead, as a special case we now only
consider clearing DownloadManager permission grants when app data
is being cleared.

Bug: 32172542, 30537115
Test: builds, boots, app upgrade doesn't clear grants
Change-Id: I7e3d4546fd12bfe5f81b9fb9857ece58d574a6b9
(cherry picked from commit 23ec811266fb728cf159a90ce4882b3c9bac1887)
(cherry picked from commit 6eee8e37fd06bd47dd19b8503bc30cc8ccaf72a7)