This update fixes several WebKit security issues: * CVE-2010-0046: CSS format() argument memory corruption * CVE-2010-0049: Use of free()d line boxes in mixed LTR/RTL text * CVE-2010-0050: Crash at HTMLParser after handling misnested style tags * CVE-2010-0051 (CVE-2010-0651): Remote information disclosure * CVE-2010-0052: Cached page can result in accessing a destroyed HTMLInputElement * CVE-2010-0054: Use of stale HTMLImageElement pointer.