[css-flexbox] Add a missing needsLayout() check

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

Index: third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp b/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
index f589bc10dd9940647f92964093bf09969095937d..4863f24bc928d39e018b33a4cd904a6bdcd33913 100644
--- a/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
@@ -1043,7 +1043,7 @@ bool LayoutFlexibleBox::computeNextFlexLine(OrderedFlexItemList& orderedChildren
         // If this condition is true, then computeMainAxisExtentForChild will call child.contentLogicalHeight()
         // and child.scrollbarLogicalHeight(), so if the child has intrinsic min/max/preferred size,
         // run layout on it now to make sure its logical height and scroll bars are up-to-date.
-        if (childHasIntrinsicMainAxisSize(*child)) {
+        if (childHasIntrinsicMainAxisSize(*child) && child->needsLayout()) {
             child->clearOverrideSize();
             child->layoutIfNeeded();
             // Keep our cache up-to-date