Dirty line boxes correctly when a float gets layout

LayoutTests/TestExpectations

Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index dfae7a0a6cd9753fb5e670996752d5df951f6690..48be95aafe233f930baf5659e491a5821d25544f 100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -580,6 +580,13 @@ crbug.com/492664 imported/csswg-test/css-writing-modes-3/orthogonal-parent-shrin
 crbug.com/492664 imported/csswg-test/css-writing-modes-3/text-orientation-script-001.html [ Skip ]
 crbug.com/492664 imported/csswg-test/css-writing-modes-3/text-orientation-script-001e.html [ Failure ]
 
+crbug.com/510703 fast/repaint/line-flow-with-floats-10.html [ NeedsRebaseline ]
+crbug.com/510703 fast/repaint/line-flow-with-floats-3.html [ NeedsRebaseline ]
+crbug.com/510703 fast/repaint/line-flow-with-floats-4.html [ NeedsRebaseline ]
+crbug.com/510703 fast/repaint/line-flow-with-floats-5.html [ NeedsRebaseline ]
+crbug.com/510703 fast/repaint/line-flow-with-floats-6.html [ NeedsRebaseline ]
+crbug.com/510703 fast/repaint/line-flow-with-floats-9.html [ NeedsRebaseline ]
+
 # These tests pass but images do not match because of position: absolute in vertical flow bug
 crbug.com/492664 imported/csswg-test/css-writing-modes-3/block-flow-direction-009.xht [ ImageOnlyFailure ]
 crbug.com/492664 imported/csswg-test/css-writing-modes-3/clip-rect-vlr-003.xht [ ImageOnlyFailure ]