Implement display:flow-root

third_party/WebKit/Source/core/layout/LayoutBox.cpp

Index: third_party/WebKit/Source/core/layout/LayoutBox.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBox.cpp b/third_party/WebKit/Source/core/layout/LayoutBox.cpp
index 57b0a06242d65daf7d7c4b1828221da15edb9fa6..2e69829b2ac331b700c38b47eeb98faa02bf4815 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBox.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBox.cpp
@@ -4710,9 +4710,11 @@ bool LayoutBox::shouldBeConsideredAsReplaced() const {
 
 DISABLE_CFI_PERF
 bool LayoutBox::avoidsFloats() const {
+  // crbug.com/460704: This should be merged with createsNewFormattingContext().
   return shouldBeConsideredAsReplaced() || hasOverflowClip() || isHR() ||
          isLegend() || isWritingModeRoot() || isFlexItemIncludingDeprecated() ||
-         style()->containsPaint() || style()->containsLayout();
+         style()->containsPaint() || style()->containsLayout() ||
+         style()->display() == EDisplay::FlowRoot;
 }
 
 bool LayoutBox::hasNonCompositedScrollbars() const {