Merge revisions r3372 - r3374 to trunk

This is on order to try out the changes related to http://crbug.com/23058 on trunk before merging them to the beta branch.
Review URL: http://codereview.chromium.org/449010

git-svn-id: http://v8.googlecode.com/svn/trunk@3376 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
12 files changed