Change old PRG to be SkLCGRandom; change new one to SkRandom

src/gpu/effects/GrConfigConversionEffect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrConfigConversionEffect.h"
 #include "GrContext.h"
 #include "GrTBackendEffectFactory.h"
@@ skipping 116 matching lines @@
 
 void GrConfigConversionEffect::getConstantColorComponents(GrColor* color,
                                                           uint32_t* validFlags) const {
     this->updateConstantColorComponentsForModulation(color, validFlags);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GR_DEFINE_EFFECT_TEST(GrConfigConversionEffect);
 
-GrEffectRef* GrConfigConversionEffect::TestCreate(SkMWCRandom* random,
+GrEffectRef* GrConfigConversionEffect::TestCreate(SkRandom* random,
                                                   GrContext*,
                                                   const GrDrawTargetCaps&,
                                                   GrTexture* textures[]) {
     PMConversion pmConv = static_cast<PMConversion>(random->nextULessThan(kPMConversionCnt));
     bool swapRB;
     if (kNone_PMConversion == pmConv) {
         swapRB = true;
     } else {
         swapRB = random->nextBool();
     }
@@ skipping 136 matching lines @@
             // The PM conversions assume colors are 0..255
             return NULL;
         }
         AutoEffectUnref effect(SkNEW_ARGS(GrConfigConversionEffect, (texture,
                                                                      swapRedAndBlue,
                                                                      pmConversion,
                                                                      matrix)));
         return CreateEffectRef(effect);
     }
 }