Update V8 top-level OWNERS: -mmassi +machenbach

R=danno@chromium.org

Review URL: https://codereview.chromium.org/25265002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
change of V8_DEPRECATED to be enabled behind a gyp flag

also add a deprecation message for newer gcc versions

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/25226002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17006 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove unused SmiTryAddConstant from X64 macro assembler

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/24978003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17007 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add titzer@ to owners file.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/25269002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17008 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.22.5.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/25043006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17009 ce2b1a6d-e550-0410-aec6-3dcde31c8c00