Call scrollbarsChanged in PLSA::updateAfterStyleChange.

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

Index: third_party/WebKit/Source/core/layout/LayoutTableCell.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutTableCell.cpp b/third_party/WebKit/Source/core/layout/LayoutTableCell.cpp
index c34f015f117fe93645f799bbbb2ac7194015bc9b..4d01ab9f4c0fd5d412fe59c929d82ea8120a3405 100644
--- a/third_party/WebKit/Source/core/layout/LayoutTableCell.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutTableCell.cpp
@@ -1380,9 +1380,13 @@ void LayoutTableCell::paintMask(const PaintInfo& paintInfo,
 }
 
 void LayoutTableCell::scrollbarsChanged(bool horizontalScrollbarChanged,
-                                        bool verticalScrollbarChanged) {
+                                        bool verticalScrollbarChanged,
+                                        ScrollbarChangeContext context) {
   LayoutBlock::scrollbarsChanged(horizontalScrollbarChanged,
                                  verticalScrollbarChanged);
+  if (context != Layout)
+    return;
+
   int scrollbarHeight = scrollbarLogicalHeight();
   // Not sure if we should be doing something when a scrollbar goes away or not.
   if (!scrollbarHeight)