Update automatically-opt-into-composited-scrolling.html

LayoutTests/platform/chromium/TestExpectations

Index: LayoutTests/platform/chromium/TestExpectations
diff --git a/LayoutTests/platform/chromium/TestExpectations b/LayoutTests/platform/chromium/TestExpectations
index 0a3b9435e600b2def97a1a19f098383dea70e5cf..6d0831d2cdeba71dd4a7f3371900bafa0956aa96 100644
--- a/LayoutTests/platform/chromium/TestExpectations
+++ b/LayoutTests/platform/chromium/TestExpectations
@@ -3122,6 +3122,11 @@ webkit.org/b/92968 http/tests/appcache/abort-cache-onprogress.html
 # Scrolling content draws beneath scrollbars in composited scrolling mode.
 webkit.org/b/103156 platform/chromium/virtual/gpu/compositedscrolling/scrollbars/custom-scrollbar-with-incomplete-style.html [ ImageOnlyFailure ]
 
+# Adding new failing layout tests to illustrate the need for a future logic fix.
+# Will be fixed in upcoming patch.
+crbug.com/172875 platform/chromium/virtual/gpu/compositedscrolling/overflow/automatically-opt-into-composited-scrolling.html [ Failure ]
+crbug.com/172875 platform/chromium/virtual/gpu/compositedscrolling/overflow/opt-into-composited-scrolling-positioned-ancestor.html [ Failure ]
+
 # Fails due to Bug 85856.
 webkit.org/b/85856 [ Win Mac ] fast/block/float/028.html [ ImageOnlyFailure ]
 webkit.org/b/85856 [ Win Mac ] fast/block/float/026.html [ ImageOnlyFailure ]