Stop passing dummy ParentDetails to NodeRenderingTraversal::parent()

Source/core/css/resolver/StyleResolver.cpp

Index: Source/core/css/resolver/StyleResolver.cpp
diff --git a/Source/core/css/resolver/StyleResolver.cpp b/Source/core/css/resolver/StyleResolver.cpp
index e7c5ab5c58f4e042c2cee74d0b805b26102f3158..120895cb6db04b4709e6898350077154fc1fff49 100644
--- a/Source/core/css/resolver/StyleResolver.cpp
+++ b/Source/core/css/resolver/StyleResolver.cpp
@@ -954,8 +954,7 @@ PassRefPtr<RenderStyle> StyleResolver::styleForText(Text* textNode)
 {
     ASSERT(textNode);
 
-    NodeRenderingTraversal::ParentDetails parentDetails;
-    Node* parentNode = NodeRenderingTraversal::parent(textNode, &parentDetails);
+    Node* parentNode = NodeRenderingTraversal::parent(textNode);
     if (!parentNode || !parentNode->renderStyle())
         return defaultStyleForElement();
     return parentNode->renderStyle();