NOT FOR LANDING: Hack up CSSParser for speed.

third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.cpp

 // 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 "core/css/resolver/CSSVariableResolver.h"
 
 #include "core/CSSPropertyNames.h"
 #include "core/CSSValueKeywords.h"
 #include "core/StyleBuilderFunctions.h"
 #include "core/StylePropertyShorthand.h"
@@ skipping 37 matching lines @@
     m_styleVariableData->setVariable(name, newVariableData);
     return newVariableData.get();
 }
 
 PassRefPtr<CSSVariableData> CSSVariableResolver::resolveCustomProperty(AtomicString name, const CSSVariableData& variableData)
 {
     ASSERT(variableData.needsVariableResolution());
 
     Vector<CSSParserToken> tokens;
     m_variablesSeen.add(name);
-    bool success = resolveTokenRange(variableData.tokens(), tokens);
+    bool success = resolveTokenRange(variableData.tokenRange(), tokens);
     m_variablesSeen.remove(name);
 
     // The old variable data holds onto the backing string the new resolved CSSVariableData
     // relies on. Ensure it will live beyond us overwriting the RefPtr in StyleVariableData.
     ASSERT(variableData.refCount() > 1);
 
     if (!success || !m_cycleStartPoints.isEmpty()) {
         m_cycleStartPoints.remove(name);
         return nullptr;
     }
@@ skipping 59 matching lines @@
     }
     return success;
 }
 
 CSSValue* CSSVariableResolver::resolveVariableReferences(StyleVariableData* styleVariableData, CSSPropertyID id, const CSSVariableReferenceValue& value)
 {
     ASSERT(!isShorthandProperty(id));
 
     CSSVariableResolver resolver(styleVariableData);
     Vector<CSSParserToken> tokens;
-    if (!resolver.resolveTokenRange(value.variableDataValue()->tokens(), tokens))
+    if (!resolver.resolveTokenRange(value.variableDataValue()->tokenRange(), tokens))
         return cssValuePool().createUnsetValue();
-    CSSValue* result = CSSPropertyParser::parseSingleValue(id, tokens, strictCSSParserContext());
+    CSSValue* result = CSSPropertyParser::parseSingleValue(id, CSSParserTokenRange(tokens.begin(), tokens.end()), strictCSSParserContext());
     if (!result)
         return cssValuePool().createUnsetValue();
     return result;
 }
 
 void CSSVariableResolver::resolveAndApplyVariableReferences(StyleResolverState& state, CSSPropertyID id, const CSSVariableReferenceValue& value)
 {
     CSSVariableResolver resolver(state.style()->variables());
 
     Vector<CSSParserToken> tokens;
-    if (resolver.resolveTokenRange(value.variableDataValue()->tokens(), tokens)) {
+    if (resolver.resolveTokenRange(value.variableDataValue()->tokenRange(), tokens)) {
         CSSParserContext context(HTMLStandardMode, 0);
 
         HeapVector<CSSProperty, 256> parsedProperties;
 
         // TODO: Non-shorthands should just call CSSPropertyParser::parseSingleValue
-        if (CSSPropertyParser::parseValue(id, false, CSSParserTokenRange(tokens), context, parsedProperties, StyleRule::RuleType::Style)) {
+        if (CSSPropertyParser::parseValue(id, false, CSSParserTokenRange(tokens.begin(), tokens.end()), context, parsedProperties, StyleRule::RuleType::Style)) {
             unsigned parsedPropertiesCount = parsedProperties.size();
             for (unsigned i = 0; i < parsedPropertiesCount; ++i)
                 StyleBuilder::applyProperty(parsedProperties[i].id(), state, parsedProperties[i].value());
             return;
         }
     }
 
     CSSUnsetValue* unset = cssValuePool().createUnsetValue();
     if (isShorthandProperty(id)) {
         StylePropertyShorthand shorthand = shorthandForProperty(id);
@@ skipping 16 matching lines @@
             variable.value = resolver.resolveCustomProperty(variable.key, *variable.value);
     }
 }
 
 CSSVariableResolver::CSSVariableResolver(StyleVariableData* styleVariableData)
     : m_styleVariableData(styleVariableData)
 {
 }
 
 } // namespace blink