Changing the visibility of SkMatrix44::determinant().

Changing the visibility of SkMatrix44::determinant().

Committed: https://code.google.com/p/skia/source/detail?r=6395

[reed1, 2012-11-05 13:29:30]

When we add a new public API, we like to have unittests (and possibly gms or
benchmarks) added as well. Can you add some tests for this API?

[vollick, 2012-11-12 22:14:05]

On 2012/11/05 13:29:30, reed1 wrote:
> When we add a new public API, we like to have unittests (and possibly gms or
> benchmarks) added as well. Can you add some tests for this API?

SG. Done.

[reed1, 2012-11-12 22:38:33]

lgtm