Store nonAttachedStyle on NodeLayoutData instead of on HashMap in Document.

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 005c1e18f3cbc744fd007656616ccf1f87ff6713..45294cf828116b0d9eef9a8d2dfd78512b352e7f 100644
--- a/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/SharedStyleFinder.cpp
@@ -61,8 +61,7 @@ using namespace HTMLNames;
 
 inline ComputedStyle* GetElementStyle(Element& element) {
   if (element.NeedsReattachLayoutTree()) {
-    if (ComputedStyle* computed_style =
-            element.GetDocument().GetNonAttachedStyle(element))
+    if (ComputedStyle* computed_style = element.GetNonAttachedStyle())
       return computed_style;
   }
   return element.MutableComputedStyle();