CANCEL: Make Document::caretRangeFromPoint() to work with :before style

Source/core/dom/TreeScope.h

Index: Source/core/dom/TreeScope.h
diff --git a/Source/core/dom/TreeScope.h b/Source/core/dom/TreeScope.h
index 26154da58c77ee3f7e5062e1e3a53496d958fa58..2962b595ca2f1a58c59fd2b9d3d967c958543ea3 100644
--- a/Source/core/dom/TreeScope.h
+++ b/Source/core/dom/TreeScope.h
@@ -39,6 +39,7 @@ class Document;
 class Element;
 class HTMLLabelElement;
 class HTMLMapElement;
+class HitTestResult;
 class LayoutPoint;
 class IdTargetObserverRegistry;
 class Node;
@@ -194,7 +195,7 @@ inline bool operator!=(const TreeScope& a, const TreeScope& b) { return !(a == b
 inline bool operator!=(const TreeScope& a, const TreeScope* b) { return !(a == b); }
 inline bool operator!=(const TreeScope* a, const TreeScope& b) { return !(a == b); }
 
-RenderObject* rendererFromPoint(Document*, int x, int y, LayoutPoint* localPoint = 0);
+HitTestResult hitTestInDocument(const Document&, int x, int y);
 TreeScope* commonTreeScope(Node*, Node*);
 
 } // namespace WebCore