Revert "CSS Custom Properties (Variables)"

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

Index: third_party/WebKit/Source/core/css/CSSVariableData.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSVariableData.cpp b/third_party/WebKit/Source/core/css/CSSVariableData.cpp
deleted file mode 100644
index d5208cba640cd2c897eac596245715c1efe8138b..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/css/CSSVariableData.cpp
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2015 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 "config.h"
-#include "core/css/CSSVariableData.h"
-
-#include "core/css/parser/CSSParserTokenRange.h"
-#include "wtf/text/StringBuilder.h"
-
-namespace blink {
-
-template<typename CharacterType> void CSSVariableData::updateTokens(const CSSParserTokenRange& range)
-{
-    const CharacterType* currentOffset = m_backingString.getCharacters<CharacterType>();
-    for (const CSSParserToken& token : range) {
-        if (token.hasStringBacking()) {
-            unsigned length = token.value().length();
-            CSSParserString parserString;
-            parserString.init(currentOffset, length);
-            m_tokens.append(token.copyWithUpdatedString(parserString));
-            currentOffset += length;
-        } else {
-            m_tokens.append(token);
-        }
-    }
-    ASSERT(currentOffset == m_backingString.getCharacters<CharacterType>() + m_backingString.length());
-}
-
-void CSSVariableData::consumeAndUpdateTokens(const CSSParserTokenRange& range)
-{
-    StringBuilder stringBuilder;
-    CSSParserTokenRange localRange = range;
-
-    while (!localRange.atEnd()) {
-        CSSParserToken token = localRange.consume();
-        if (token.hasStringBacking()) {
-            CSSParserString value = token.value();
-            if (value.is8Bit())
-                stringBuilder.append(value.characters8(), value.length());
-            else
-                stringBuilder.append(value.characters16(), value.length());
-        }
-    }
-    m_backingString = stringBuilder.toString();
-    if (m_backingString.is8Bit())
-        updateTokens<LChar>(range);
-    else
-        updateTokens<UChar>(range);
-}
-
-CSSVariableData::CSSVariableData(const CSSParserTokenRange& range, bool needsVariableResolution)
-    : m_needsVariableResolution(needsVariableResolution)
-{
-    ASSERT(!range.atEnd());
-    consumeAndUpdateTokens(range);
-}
-
-} // namespace blink