Don't calculate overflow on tables that need layout

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

Index: third_party/WebKit/Source/core/layout/LayoutTable.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutTable.cpp b/third_party/WebKit/Source/core/layout/LayoutTable.cpp
index a9babf604e45a0e610eaf2e501aab4be93fc2b45..7c9b6d64fa861c825546e3a1dac926050a29bc55 100644
--- a/third_party/WebKit/Source/core/layout/LayoutTable.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutTable.cpp
@@ -418,6 +418,12 @@ bool LayoutTable::recalcChildOverflowAfterStyleChange()
 {
     ASSERT(childNeedsOverflowRecalcAfterStyleChange());
     clearChildNeedsOverflowRecalcAfterStyleChange();
+
+    // If the table needs layout the sections we keep pointers to may have gone away and
+    // overflow will get recalculated anyway so return early.
+    if (needsLayout())
+        return false;
+
     bool childrenOverflowChanged = false;
     for (LayoutTableSection* section = topSection(); section; section = sectionBelow(section)) {
         if (!section->childNeedsOverflowRecalcAfterStyleChange())