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

Source/core/css/parser/CSSParserFastPaths.h

Index: Source/core/css/parser/CSSParserFastPaths.h
diff --git a/Source/core/css/parser/CSSParserFastPaths.h b/Source/core/css/parser/CSSParserFastPaths.h
index d8320961ca594bef0ce4e0446f9afc3ccdd42761..7ae1018cd2fd1532cead577a0f8a4d6c9718fe09 100644
--- a/Source/core/css/parser/CSSParserFastPaths.h
+++ b/Source/core/css/parser/CSSParserFastPaths.h
@@ -9,6 +9,7 @@
 #include "core/CSSValueKeywords.h"
 #include "platform/graphics/Color.h"
 #include "platform/heap/Handle.h"
+#include "wtf/Allocator.h"
 #include "wtf/Forward.h"
 
 namespace blink {
@@ -16,6 +17,7 @@ namespace blink {
 class CSSValue;
 
 class CSSParserFastPaths {
+    STATIC_ONLY(CSSParserFastPaths);
 public:
     // Parses simple values like '10px' or 'green', but makes no guarantees
     // about handling any property completely.