Move the check for a pending update off of the UI thread.

BUG=783601
[email protected]

Change-Id: I99bebdf3bd59cde120494c1c55840f3262f87a58
Reviewed-on: https://chromium-review.googlesource.com/765829
Commit-Queue: Greg Thompson <[email protected]>
Reviewed-by: Scott Violet <[email protected]>
Cr-Commit-Position: refs/heads/master@{#516106}
2 files changed