Revert of Use correct clip container when computing acl for scroll children

Reason for revert:
Caused issue 608410

Original issue's description:
> Use correct clip container when computing acl for scroll children
>
> Kudos to erick@ for the reduced test case.
>
> BUG=603997
>
> Committed: https://crrev.com/94d5fad34f0351e61fd658ca4ed93648c415620d
> Cr-Commit-Position: refs/heads/master@{#390199}

[email protected]
BUG=603997, 608410

Review-Url: https://codereview.chromium.org/1951853006
Cr-Commit-Position: refs/heads/master@{#391913}
diff --git a/third_party/WebKit/LayoutTests/TestExpectations b/third_party/WebKit/LayoutTests/TestExpectations
index 762ab5b6c..979a170 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -541,6 +541,8 @@
 
 crbug.com/517840 imported/web-platform-tests/webrtc/rtcpeerconnection/rtcpeerconnection-idl.html [ Failure Timeout ]
 
+crbug.com/603997 compositing/overflow/clear-scroll-parent.html [ NeedsManualRebaseline ]
+crbug.com/603997 virtual/prefer_compositing_to_lcd_text/compositing/overflow/clear-scroll-parent.html [ NeedsManualRebaseline ]
 
 crbug.com/552494 scrollbars/overflow-scrollbar-combinations.html [ Pass Failure ]
 crbug.com/552494 virtual/prefer_compositing_to_lcd_text/scrollbars/overflow-scrollbar-combinations.html [ Pass Failure ]