[Mac] Tweak CrZombie code for better crash reporting.
[Mac] Tweak CrZombie code for better crash reporting.

-performSelector:withObject: has been seen in some crashes, so expand
the dispatch methods implemented to cover that and a couple obvious
variants.

Use a local copy of |BreakDebugger()| so that the crashes top-of-stack
is more obviously intentional.  Then there can be a bug to attract
crash-triagers and explain how to handle things.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/2828022

git-svn-id: http://src.chromium.org/svn/trunk/src@50856 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: e34ccb5e3acd82edcf2dffb50f92d514d02d2b4d
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser