GitLab

WatchFileDescriptor(WATCH_READ) should result in
OnFileCanReadWithoutBlocking() if the descriptor is at end-of-stream
when it is invoked, to wake the caller to detect that by attempting to
read and receiving zero bytes.

Bug: 898938, 706592, 884299
Change-Id: I77662fe77eb8fb988089640a75a60d470770b78f
Reviewed-on: https://chromium-review.googlesource.com/c/1316672
Commit-Queue: Wez <wez@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605154}