The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2b429138bf171dff52faa9aa9d7cb9b1143f7047

commit 2b429138bf171dff52faa9aa9d7cb9b1143f7047
Author: Rune Lillesveen <futhark@chromium.org>
Date: Wed Aug 08 12:07:19 2018

Mark flaky test autoscroll-over-scrollbar.html flaky

Sometimes causes Mac10.10 testing to fail.

TBR=sahel@chromium.org

Bug:  872242 
Change-Id: I15b712b498c7398999a21b34c7406a163181cf2e
Reviewed-on: https://chromium-review.googlesource.com/1167048
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581524}
[modify] https://crrev.com/2b429138bf171dff52faa9aa9d7cb9b1143f7047/third_party/WebKit/LayoutTests/TestExpectations

Seen on other Mac platforms as well. Disabling for Mac in general:

https://chromium-review.googlesource.com/c/chromium/src/+/1167288

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2a63f963b9bc4d4bb944573723bf4e44be515294

commit 2a63f963b9bc4d4bb944573723bf4e44be515294
Author: Rune Lillesveen <futhark@chromium.org>
Date: Wed Aug 08 15:59:05 2018

Autoscroll test failing on all Mac platforms.

TBR=sahel@chromium.org

Bug:  872242 
Change-Id: If851174fe5e066d63ed3aa38f5a9bd4e414f177f
Reviewed-on: https://chromium-review.googlesource.com/1167288
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581580}
[modify] https://crrev.com/2a63f963b9bc4d4bb944573723bf4e44be515294/third_party/WebKit/LayoutTests/TestExpectations