Track lastTextNode during rebuildLayoutTree.

third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp

Index: third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp b/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
index 02f4f527fb31ac57136d673352b67d9c1670e241..df7e4ede8dbdfcf8b84a20166e2355829021a385 100644
--- a/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
@@ -61,10 +61,9 @@ using namespace HTMLNames;
 
 inline ComputedStyle* getElementStyle(Element& element) {
   if (element.needsReattachLayoutTree()) {
-    StyleReattachData styleReattachData =
-        element.document().getStyleReattachData(element);
-    if (styleReattachData.computedStyle)
-      return styleReattachData.computedStyle.get();
+    if (ComputedStyle* computedStyle =
+            element.document().getNonAttachedStyle(element))
+      return computedStyle;
   }
   return element.mutableComputedStyle();
 }