GitLab

Add missing assertions after callRemoteTestUtil invocations.

LOG(FATAL) instead of assertion when trying to add entries to a
non-existant Android Files test volume. Also remove unnecessary
AndroidFilesTestVolume.Initialize() call.

Bug: 877371
Change-Id: I925ad37a056e411eb3a5bd833cad59a5ce11fae3
Reviewed-on: https://chromium-review.googlesource.com/1218664Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Alex Lau <alexlau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590232}