Adding baseline for Android path renderer

This adds the original path renderer files and some support files from Android. Renamed PathRenderer.{cpp,h} to AndroidPathRenderer.{cpp,h} to avoid name collisions.

Note: Android open source uses the Apache license, and Skia uses a different license. I'm not sure how to resolve that.

[robertphillips, 2012-12-13 18:58:39]

Mike - any thoughts about the license? Otherwise, LGTM.

[reed1, 2012-12-13 18:59:30]

skia is a mix of Apache and BSD, so no problem. lgtm

[reed1, 2012-12-13 19:00:33]

Actually, I take that back. We did a sweeping conversion over to BSD.

Jim, any issue if we convert your license over (even after it lands)?

[JimVV, 2012-12-13 19:14:50]

Updated the headers to use BSD-style license.

[robertphillips, 2012-12-13 19:46:47]

LGTM

[JimVV, 2012-12-13 19:57:11]

Committed as r6789.