Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/css/parser/CSSParser.h

 // Copyright 2014 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 CSSParser_h
 #define CSSParser_h
 
 #include "core/CSSPropertyNames.h"
 #include "core/CoreExport.h"
 #include "core/css/CSSValue.h"
 #include "core/css/parser/CSSParserMode.h"
 #include "platform/graphics/Color.h"
-#include <memory>
 
 namespace blink {
 
 class CSSParserObserver;
 class CSSParserTokenRange;
 class CSSSelectorList;
 class Element;
 class ImmutableStylePropertySet;
 class MutableStylePropertySet;
 class StyleColor;
@@ skipping 17 matching lines @@
     static bool parseValueForCustomProperty(MutableStylePropertySet*, const AtomicString& propertyName, const String& value, bool important, StyleSheetContents*);
     static ImmutableStylePropertySet* parseCustomPropertySet(CSSParserTokenRange);
 
     // This is for non-shorthands only
     static CSSValue* parseSingleValue(CSSPropertyID, const String&, const CSSParserContext& = strictCSSParserContext());
 
     static CSSValue* parseFontFaceDescriptor(CSSPropertyID, const String&, const CSSParserContext&);
 
     static ImmutableStylePropertySet* parseInlineStyleDeclaration(const String&, Element*);
 
-    static std::unique_ptr<Vector<double>> parseKeyframeKeyList(const String&);
+    static PassOwnPtr<Vector<double>> parseKeyframeKeyList(const String&);
     static StyleRuleKeyframe* parseKeyframeRule(const CSSParserContext&, const String&);
 
     static bool parseSupportsCondition(const String&);
 
     // The color will only be changed when string contains a valid CSS color, so callers
     // can set it to a default color and ignore the boolean result.
     static bool parseColor(Color&, const String&, bool strict = false);
     static bool parseSystemColor(Color&, const String&);
 
     static void parseSheetForInspector(const CSSParserContext&, StyleSheetContents*, const String&, CSSParserObserver&);
     static void parseDeclarationListForInspector(const CSSParserContext&, const String&, CSSParserObserver&);
 
 private:
     static bool parseValue(MutableStylePropertySet*, CSSPropertyID unresolvedProperty, const String&, bool important, const CSSParserContext&);
 };
 
 } // namespace blink
 
 #endif // CSSParser_h