Time to revert bad commits?

[Vitaliy Margolen]

I'm afraid we are out of time to fix bugs that introduces major d3d 
regressions. I've yet to see a single patch that addressed those issues.

It's time to start reverting bad commits and testing the results.

The bugs I'm talking about:
Bug 10580
Bug 11584
Bug 12794
Bug 13101

Vitaliy.