GitLab

MemoryFileStreamWriter called some ObfuscatedFileUtilMemoryDelegate
functions through IO thread while other functions in OFUMD are called
on a threadpool sequence. This could result in races in updating
directory structure.

To fix the issue, MemoryFileStreamWriter and MemoryFileStreamReader are
updated to call all OFUMD on the default task runner of the file system
context.

Bug: 1100136
Change-Id: I59146ca690eee810c52f807bd1fb4ef2b1f2c929
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2308721
Commit-Queue: Ramin Halavati <rhalavati@chromium.org>
Reviewed-by: Marijn Kruisselbrink <mek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#802584}