Rewrite references to "wtf/" to "platform/wtf/" in core/{dom,html,xml}.

third_party/WebKit/Source/core/dom/custom/CustomElementTestHelpers.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CustomElementTestHelpers_h
 #define CustomElementTestHelpers_h
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/ElementDefinitionOptions.h"
 #include "core/dom/QualifiedName.h"
 #include "core/dom/custom/CEReactionsScope.h"
 #include "core/dom/custom/CustomElementDefinition.h"
 #include "core/dom/custom/CustomElementDefinitionBuilder.h"
 #include "core/html/HTMLDocument.h"
 #include "platform/heap/Handle.h"
-#include "wtf/text/AtomicString.h"
+#include "platform/wtf/text/AtomicString.h"
 
 #include <utility>
 #include <vector>
 
 namespace blink {
 
 class CustomElementDescriptor;
 
 class TestCustomElementDefinitionBuilder
     : public CustomElementDefinitionBuilder {
@@ skipping 104 matching lines @@
  private:
   Member<Document> document_;
   AtomicString namespace_uri_;
   AtomicString local_name_;
   std::vector<std::pair<QualifiedName, AtomicString>> attributes_;
 };
 
 }  // namespace blink
 
 #endif  // CustomElementTestHelpers_h