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

bench/MorphologyBench.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 "SkBenchmark.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
 #include "SkRandom.h"
@@ skipping 41 matching lines @@
     virtual const char* onGetName() {
         return fName.c_str();
     }
 
     virtual void onDraw(SkCanvas* canvas) {
         SkPaint paint;
         this->setupPaint(&paint);
 
         paint.setAntiAlias(true);
 
-        SkMWCRandom rand;
+        SkRandom rand;
         for (int i = 0; i < SkBENCHLOOP(3); i++) {
             SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
                                       rand.nextUScalar1() * 400);
             r.offset(fRadius, fRadius);
 
             if (fRadius > 0) {
                 SkMorphologyImageFilter* mf = NULL;
                 switch (fStyle) {
                 case kDilate_MT:
                     mf = new SkDilateImageFilter(SkScalarFloorToInt(fRadius),
@@ skipping 34 matching lines @@
 
 static BenchRegistry gReg10(Fact10);
 static BenchRegistry gReg11(Fact11);
 
 static BenchRegistry gReg20(Fact20);
 static BenchRegistry gReg21(Fact21);
 
 static BenchRegistry gRegNone(FactNone);
 
 #endif