Hi Robert,

I reverted the CL as it had consecutive failures.

Untagging sheriff-chromium, since the failures aren't happening after the revert in #4.

FYI, it seems there are multiple causes at play here, since this flaked again after the revert had landed: <https://uberchromegw.corp.google.com/i/chromium.linux/builders/Linux%20Tests/builds/66683>

The failure is:
02:18:25.222 8731 [1/1] virtual/android/rootscroller/set-rootscroller-before-load.html failed unexpectedly (reference mismatch)
02:18:25.222 8731 worker/0 virtual/android/rootscroller/set-rootscroller-before-load.html failed:
02:18:25.222 8731 worker/0  reference mismatch

flackr@: please take a peek :)

+bokan who added the test.

Right, maybe this wasn't my patch. Do you know how to test site_per_process_webkit_layout_tests locally? It's not a build target and I'm not quite sure where to get the command to run tests from the swarming bot output.

Xianzhu recently deflaked some other rootscroller tests. I've got a patch that'll hopefully do the same for this test: https://chromium-review.googlesource.com/c/chromium/src/+/886561

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5ee14a915fc62a2bf108143ead0b0e0e46aea335

commit 5ee14a915fc62a2bf108143ead0b0e0e46aea335
Author: David Bokan <bokan@chromium.org>
Date: Thu Jan 25 18:00:19 2018

Deflake set-rootscroller-before-load.html

Additional test to chcanges landed in r531871

Bug:  804813 
Change-Id: I9684318423e2e00ee20a4f5504e0420ecf8d080c
Reviewed-on: https://chromium-review.googlesource.com/886561
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531938}
[modify] https://crrev.com/5ee14a915fc62a2bf108143ead0b0e0e46aea335/third_party/WebKit/LayoutTests/rootscroller/set-rootscroller-before-load.html

My patch is landed - you could give it another try and see if that helped.

Flakiness dashboard shows all green so closing this out.