Disable clipping on root scroller's ancestors.

third_party/WebKit/Source/web/tests/RootScrollerTest.cpp

Index: third_party/WebKit/Source/web/tests/RootScrollerTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/RootScrollerTest.cpp b/third_party/WebKit/Source/web/tests/RootScrollerTest.cpp
index 703f4fed3dc380fe4c33d38597416f777622e6c8..3f5ad3e135e8aefdf6d376b06acd88c80a377827 100644
--- a/third_party/WebKit/Source/web/tests/RootScrollerTest.cpp
+++ b/third_party/WebKit/Source/web/tests/RootScrollerTest.cpp
@@ -596,7 +596,6 @@ TEST_F(RootScrollerTest, TestSetRootScrollerCausesViewportLayerChange)
     // compositing changes. crbug.com/505516
 }
 
-

[chrishtr, 2016/09/01 23:42:57]

spurious

[bokan, 2016/09/09 00:19:02]

Done.

 // Tests that trying to set an element as the root scroller of a document inside
 // an iframe fails when that element belongs to the parent document.
 // TODO(bokan): Recent changes mean this is now possible but should be fixed.