Use SkMWRandom in GLPrograms test.

R=jvanverth@google.com
Review URL: https://codereview.appspot.com/7306097

git-svn-id: http://skia.googlecode.com/svn/trunk@7721 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/effects/GrConfigConversionEffect.cpp b/src/gpu/effects/GrConfigConversionEffect.cpp
index 92df82d..1dd51c8 100644
--- a/src/gpu/effects/GrConfigConversionEffect.cpp
+++ b/src/gpu/effects/GrConfigConversionEffect.cpp
@@ -131,7 +131,7 @@
 
 GR_DEFINE_EFFECT_TEST(GrConfigConversionEffect);
 
-GrEffectRef* GrConfigConversionEffect::TestCreate(SkRandom* random,
+GrEffectRef* GrConfigConversionEffect::TestCreate(SkMWCRandom* random,
                                                   GrContext* context,
                                                   GrTexture* textures[]) {
     PMConversion pmConv = static_cast<PMConversion>(random->nextULessThan(kPMConversionCnt));