GitLab

Add a method that storage backends can call to let QuotaManager know
that a write error will be or has been thrown. This will be
used as a hint that the disk storing the user's profile might be
full. In combination with Quota's knowledge of disk usage, this
function can be used to trigger any actions that the content embedder
deems appropriate for storage pressure state, such as notifying the
user.

Logic for calling this function will be in child CLs.

Bug: 997258
Change-Id: Iae7f77f546778f426e13b936f6bfeb6284cab3bc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1969235
Commit-Queue: Jarryd Goodman <jarrydg@chromium.org>
Reviewed-by: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#736495}