Implement BreakDebugger for ARM.
Implement BreakDebugger for ARM.

Review URL: http://codereview.chromium.org/115087


git-svn-id: http://src.chromium.org/svn/trunk/src@15548 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ef90b5d7a4ea9e34b3da29b382be3dd87bdaa4e5
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