Make blink classes and structures in core/css fast-allocated

Source/core/css/resolver/StyleBuilderConverter.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 21 matching lines @@
 #include "core/css/resolver/StyleResolverState.h"
 #include "core/layout/LayoutView.h"
 #include "core/style/QuotesData.h"
 #include "core/style/ShadowList.h"
 #include "core/style/StyleReflection.h"
 #include "core/style/StyleScrollSnapData.h"
 #include "core/style/TransformOrigin.h"
 #include "platform/LengthSize.h"
 #include "platform/fonts/FontDescription.h"
 #include "platform/text/TabSize.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 class RotateTransformOperation;
 class TranslateTransformOperation;
 class ScaleTransformOperation;
 
 // Note that we assume the parser only allows valid CSSValue types.
 class StyleBuilderConverter {
+    STATIC_ONLY(StyleBuilderConverter);
 public:
     static PassRefPtr<StyleReflection> convertBoxReflect(StyleResolverState&, CSSValue*);
     static AtomicString convertFragmentIdentifier(StyleResolverState&, CSSValue*);
     static Color convertColor(StyleResolverState&, CSSValue*, bool forVisitedLink = false);
     template <typename T> static T convertComputedLength(StyleResolverState&, CSSValue*);
     static LengthBox convertClip(StyleResolverState&, CSSValue*);
     template <typename T> static T convertFlags(StyleResolverState&, CSSValue*);
     static FontDescription::FamilyDescription convertFontFamily(StyleResolverState&, CSSValue*);
     static PassRefPtr<FontFeatureSettings> convertFontFeatureSettings(StyleResolverState&, CSSValue*);
     static FontDescription::Size convertFontSize(StyleResolverState&, CSSValue*);
@@ skipping 93 matching lines @@
 {
     CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
     if (primitiveValue->getValueID() == IdForNone)
         return nullAtom;
     return AtomicString(primitiveValue->getStringValue());
 }
 
 } // namespace blink
 
 #endif