Update Blink to use the tree scope info on WebFrame for scoping checks.

Source/core/frame/LocalFrame.h

Index: Source/core/frame/LocalFrame.h
diff --git a/Source/core/frame/LocalFrame.h b/Source/core/frame/LocalFrame.h
index 327e5120df0801e7c47ae1daf1873137e54a49b4..759664a787014a871d3e75614f22c1b37bc97b32 100644
--- a/Source/core/frame/LocalFrame.h
+++ b/Source/core/frame/LocalFrame.h
@@ -126,8 +126,6 @@ namespace blink {
 
     // ======== All public functions below this point are candidates to move out of LocalFrame into another class. ========
 
-        bool inScope(TreeScope*) const;
-
         // See GraphicsLayerClient.h for accepted flags.
         String layerTreeAsText(unsigned flags = 0) const;