[CSS Grid Layout] Fix missing layout in flexible and content sized columns

LayoutTests/fast/css-grid-layout/flex-content-sized-columns-resize-expected.txt

Index: LayoutTests/fast/css-grid-layout/flex-content-sized-columns-resize-expected.txt
diff --git a/LayoutTests/fast/css-grid-layout/flex-content-sized-columns-resize-expected.txt b/LayoutTests/fast/css-grid-layout/flex-content-sized-columns-resize-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..29dcaee883c0a2f338a324cc7cf75ddd4fe2dcb5
--- /dev/null
+++ b/LayoutTests/fast/css-grid-layout/flex-content-sized-columns-resize-expected.txt
@@ -0,0 +1,24 @@
+PASS successfullyParsed is true
+
+TEST COMPLETE
+PASS getComputedStyle(firstColumnGrid, '').getPropertyValue('width') is getComputedStyle(firstColumnFloat, '').getPropertyValue('width')
+PASS getComputedStyle(secondColumnGrid, '').getPropertyValue('width') is getComputedStyle(secondColumnFloat, '').getPropertyValue('width')
+PASS getComputedStyle(oneColumnGrid, '').getPropertyValue('width') is getComputedStyle(oneColumnRegular, '').getPropertyValue('width')
+Description
+
+Grid flex and content sized columns width should be updated properly when you resize the window (you should not see the grid background in grey color). It should work like in the float and regular cases.
+
+Grid 2 flex columns
+
+first column
+second column
+Float 2 columns
+
+second column
+first column
+Grid 1 auto column
+
+one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column
+Regular 1 column
+
+one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column one column