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

third_party/WebKit/Source/core/html/parser/HTMLViewSourceParserTest.cpp

 // 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.
 
 #include "core/html/parser/HTMLViewSourceParser.h"
 
 #include "core/dom/DocumentInit.h"
 #include "core/dom/DocumentParser.h"
 #include "core/html/HTMLViewSourceDocument.h"
+#include "platform/wtf/text/WTFString.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "wtf/text/WTFString.h"
 
 namespace blink {
 
 // This is a regression test for https://crbug.com/664915
 TEST(HTMLViewSourceParserTest, DetachThenFinish_ShouldNotCrash) {
   String mime_type("text/html");
   HTMLViewSourceDocument* document =
       HTMLViewSourceDocument::Create(DocumentInit(), mime_type);
   HTMLViewSourceParser* parser =
       HTMLViewSourceParser::Create(*document, mime_type);
   // A client may detach the parser from the document.
   parser->Detach();
   // A DocumentWriter may call finish() after detach().
   static_cast<DocumentParser*>(parser)->Finish();
   // The test passed if finish did not crash.
 }
 
 }  // namespace blink