chromium -- multiple vulnerabilities

Google Chrome Releases reports:

[106413] High CVE-2011-3078: Use after free in floats handling.
Credit to Google Chrome Security Team (Marty Barbella) and
independent later discovery by miaubiz.
[117627] Medium CVE-2011-3079: IPC validation failure. Credit to
PinkiePie.
[121726] Medium CVE-2011-3080: Race condition in sandbox IPC.
Credit to Willem Pinckaers of Matasano.
[121899] High CVE-2011-3081: Use after free in floats handling.
Credit to miaubiz.
[117110] High CVE-2012-1521: Use after free in xml parser. Credit
to Google Chrome Security Team (SkyLined) and independent later
discovery by wushi of team509 reported through iDefense VCP
(V-874rcfpq7z).