Remove most of scoped styles.

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 575 matching lines @@
 
     String representation = externalRepresentation(element);
     if (representation.isEmpty()) {
         exceptionState.throwDOMException(InvalidAccessError, "The element provided has no external representation.");
         return String();
     }
 
     return representation;
 }
 
-size_t Internals::numberOfScopedHTMLStyleChildren(const Node* scope, ExceptionState& exceptionState) const
-{
-    if (scope && (scope->isElementNode() || scope->isShadowRoot()))
-        return scope->numberOfScopedHTMLStyleChildren();
-
-    exceptionState.throwDOMException(InvalidAccessError, ExceptionMessages::argumentNullOrIncorrectType(1, "Node"));
-    return 0;
-}
-
 PassRefPtr<CSSComputedStyleDeclaration> Internals::computedStyleIncludingVisitedInfo(Node* node, ExceptionState& exceptionState) const
 {
     if (!node) {
         exceptionState.throwDOMException(InvalidAccessError, ExceptionMessages::argumentNullOrIncorrectType(1, "Node"));
         return nullptr;
     }
 
     bool allowVisitedStyle = true;
     return CSSComputedStyleDeclaration::create(node, allowVisitedStyle);
 }
@@ skipping 1837 matching lines @@
 String Internals::textSurroundingNode(Node* node, int x, int y, unsigned long maxLength)
 {
     if (!node)
         return String();
     blink::WebPoint point(x, y);
     SurroundingText surroundingText(VisiblePosition(node->renderer()->positionForPoint(static_cast<IntPoint>(point))), maxLength);
     return surroundingText.content();
 }
 
 }