Added conical gradient to gm gradients test, and added two variants of that test, one with perspect…

Added conical gradient to gm gradients test, and added two variants of that test, one with perspective applied to the local matrices of the gradients and the other with perspective applied to the overall view matrix.

Will require GM rebaselining.
Committed: https://code.google.com/p/skia/source/detail?r=4468

[rileya, 2012-07-09 14:12:19]

Is there any additional setup required when adding/changing gm tests?

[bsalomon, 2012-07-09 14:39:46]

LGTM

On 2012/07/09 14:12:19, rileya wrote:
> Is there any additional setup required when adding/changing gm tests?

The process is to checkin, which turns gm red, and then rebaseline. There are
some tools to assist with this. I'll walk you through it once you're checked in
and the bots have completed. We should also get images checked in for your new
tests.

A semi-standard practice is to add a line to your commit comment that the change
is expected to require GM rebaselining.