2008-12-07 Antti Koivisto <antti@apple.com>

2008-12-07  Antti Koivisto  <antti@apple.com>

        Reviewed by Darin Adler.

        https://bugs.webkit.org/show_bug.cgi?id=22717
        Make CSS values use less memory

        Share CSSPrimitiveValue objects for commonly used values including
        - idents
        - colors
        - small integers

        This reduces the amount CSSPrimitiveValue instances by > 80%.

        * css/CSSPrimitiveValue.cpp:
        (WebCore::CSSPrimitiveValue::createIdentifier):
        (WebCore::CSSPrimitiveValue::createColor):
        (WebCore::CSSPrimitiveValue::create):
        * css/CSSPrimitiveValue.h:
        (WebCore::CSSPrimitiveValue::create):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@39088 268f45cc-cd09-0410-ab3c-d52691b4dbfc