Rewrite references to "wtf/" to "platform/wtf/" in core/css and core/style.

third_party/WebKit/Source/core/css/CSSTestHelper.cpp

 /*
  * Copyright (c) 2014, Google 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 16 matching lines @@
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/css/CSSTestHelper.h"
 
 #include "core/css/CSSRuleList.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/RuleSet.h"
 #include "core/css/StyleSheetContents.h"
 #include "core/dom/Document.h"
+#include "platform/wtf/text/WTFString.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "wtf/text/WTFString.h"
 
 namespace blink {
 
 CSSTestHelper::~CSSTestHelper() {}
 
 CSSTestHelper::CSSTestHelper() {
   document_ = Document::Create();
   TextPosition position;
   style_sheet_ =
       CSSStyleSheet::CreateInline(*document_, KURL(), position, "UTF-8");
@@ skipping 11 matching lines @@
 }
 
 void CSSTestHelper::AddCSSRules(const char* css_text) {
   TextPosition position;
   unsigned sheet_length = style_sheet_->length();
   style_sheet_->Contents()->ParseStringAtPosition(css_text, position);
   ASSERT_TRUE(style_sheet_->length() > sheet_length);
 }
 
 }  // namespace blink