Fuchsia: Add DIR_APP_DATA path key for user data, set to /tmp for now.

The existing default implementation attempts to place user data at the
same path as the browser executable. This fails for packaged apps
since the filesystem mounted at /pkg is immutable.

This CL introduces a new PathService key DIR_APP_DATA, which will
eventually point to /data, but points to /tmp for the time being
(see bug 840598).


Bug: 840598
Change-Id: I9e3bae2253c986e292b05d6532a06872de20420b
Reviewed-on: https://chromium-review.googlesource.com/1050496
Commit-Queue: Kevin Marshall <kmarshall@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
Reviewed-by: Peter Beverloo <peter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#560472}
4 files changed