Chrome Version: ToT
OS: macOS and Linux

What steps will reproduce the problem?
(1) run third_party/WebKit/Tools/Scripts/test-webkitpy

What is the expected result?
No failures.

What happens instead?

[1289/1506] webkitpy.layout_tests.controllers.repaint_overlay_unittest.TestRepaintOverlay.test_generate_repaint_overlay_html failed unexpectedly:
  Traceback (most recent call last):
    File "/Users/tkent/chrome/src/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/repaint_overlay_unittest.py", line 82, in test_generate_repaint_overlay_html
      (overlay_html_file, actual_overlay_html_file, actual_overlay_html_file, overlay_html_file))
  AssertionError: This failure is probably caused by changed repaint_overlay.py. Please examine the diffs:
    diff /Users/tkent/chrome/src/third_party/WebKit/LayoutTests/paint/invalidation/repaint-overlay/layers-overlay.html /Users/tkent/chrome/src/out/Release/layout-test-results/layers-overlay.html
  If the diffs are valid, update the file:
    cp /Users/tkent/chrome/src/out/Release/layout-test-results/layers-overlay.html /Users/tkent/chrome/src/third_party/WebKit/LayoutTests/paint/invalidation/repaint-overlay/layers-overlay.html
  then update layers-overlay-expected.html in the same directory if needed, and commit the files together with the changed repaint_overlay.py.




Please use labels and text to provide additional information.

% diff /Users/tkent/chrome/src/third_party/WebKit/LayoutTests/paint/invalidation/repaint-overlay/layers-overlay.html /Users/tkent/chrome/src/out/Release/layout-test-results/layers-overlay.html
59a60,70
>       "bounds": [800, 600],
>       "drawsContent": false,
>       "backgroundColor": "#FFFFFF"
>     },
>     {
>       "name": "Scrolling Layer",
>       "bounds": [800, 600],
>       "drawsContent": false
>     },
>     {
>       "name": "Scrolling Contents Layer",
141c152,153
<       ]
---
>       ],
>       "flattenInheritedTransform": false
191a204,214
>       "bounds": [800, 600],
>       "drawsContent": false,
>       "backgroundColor": "#FFFFFF"
>     },
>     {
>       "name": "Scrolling Layer",
>       "bounds": [800, 600],
>       "drawsContent": false
>     },
>     {
>       "name": "Scrolling Contents Layer",
273c296,297
<       ]
---
>       ],
>       "flattenInheritedTransform": false