Another attempt to fix the Extract build failures on the IE8 builder. Removed the message pump we spin at the end of each test and replaced it with a simple Wait on the process handle.
Another attempt to fix the Extract build failures on the IE8 builder. Removed the message
pump we spin at the end of each test and replaced it with a simple Wait on the process handle.

Use the KillProcesses helper function in base to terminate running iexplore processes.

Review URL: http://codereview.chromium.org/3419022

git-svn-id: http://src.chromium.org/svn/trunk/src@60514 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: c80f3734b23f2e0544236fc1540f74a1512b9fe0
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