Added support for Chrome's gpu command buffer extension BindUniformLocation.

R=bsalomon@google.com, bsalomon

Author: skaslev@chromium.org

Review URL: https://codereview.chromium.org/62163004

git-svn-id: http://skia.googlecode.com/svn/trunk@12178 2bbb7eff-a529-9590-31e7-b0007b416f81
16 files changed