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

src/gpu/effects/GrConvolutionEffect.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 "GrConvolutionEffect.h"
 #include "gl/GrGLEffect.h"
 #include "gl/GrGLEffectMatrix.h"
@@ skipping 201 matching lines @@
             this->direction() == s.direction() &&
             this->useBounds() == s.useBounds() &&
             0 == memcmp(fBounds, s.fBounds, sizeof(fBounds)) &&
             0 == memcmp(fKernel, s.fKernel, this->width() * sizeof(float)));
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GR_DEFINE_EFFECT_TEST(GrConvolutionEffect);
 
-GrEffectRef* GrConvolutionEffect::TestCreate(SkMWCRandom* random,
+GrEffectRef* GrConvolutionEffect::TestCreate(SkRandom* random,
                                              GrContext*,
                                              const GrDrawTargetCaps&,
                                              GrTexture* textures[]) {
     int texIdx = random->nextBool() ? GrEffectUnitTest::kSkiaPMTextureIdx :
                                       GrEffectUnitTest::kAlphaTextureIdx;
     Direction dir = random->nextBool() ? kX_Direction : kY_Direction;
     int radius = random->nextRangeU(1, kMaxKernelRadius);
     float kernel[kMaxKernelWidth];
     for (size_t i = 0; i < SK_ARRAY_COUNT(kernel); ++i) {
         kernel[i] = random->nextSScalar1();
     }
     float bounds[2];
     for (size_t i = 0; i < SK_ARRAY_COUNT(bounds); ++i) {
         bounds[i] = random->nextF();
     }
 
     bool useBounds = random->nextBool();
     return GrConvolutionEffect::Create(textures[texIdx],
                                        dir,
                                        radius,
                                        kernel,
                                        useBounds,
                                        bounds);
 }