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

bench/GameBench.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"
@@ skipping 70 matching lines @@
 
     virtual void onPreDraw() SK_OVERRIDE {
         if (!fInitialized) {
             this->makeCheckerboard();
             this->makeAtlas();
             fInitialized = true;
         }
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
-        SkMWCRandom scaleRand;
-        SkMWCRandom transRand;
-        SkMWCRandom rotRand;
+        SkRandom scaleRand;
+        SkRandom transRand;
+        SkRandom rotRand;
 
         int width, height;
         if (fUseAtlas) {
             width = kAtlasCellWidth;
             height = kAtlasCellHeight;
         } else {
             width = kCheckerboardWidth;
             height = kCheckerboardHeight;
         }
 
@@ skipping 169 matching lines @@
                     *scanline++ = 0xFFFF0000;
                 } else {
                     *scanline++ = 0x00000000;
                 }
             }
         }
     }
 
     // Note: the resulting atlas has transparency
     void makeAtlas() {
-        SkMWCRandom rand;
+        SkRandom rand;
 
         SkColor colors[kNumAtlasedX][kNumAtlasedY];
 
         for (int y = 0; y < kNumAtlasedY; ++y) {
             for (int x = 0; x < kNumAtlasedX; ++x) {
                 colors[x][y] = rand.nextU() | 0xff000000;
                 fAtlasRects[x][y] = SkIRect::MakeXYWH(kAtlasSpacer + x * (kAtlasCellWidth + kAtlasSpacer),
                                                       kAtlasSpacer + y * (kAtlasCellHeight + kAtlasSpacer),
                                                       kAtlasCellWidth,
                                                       kAtlasCellHeight);
@@ skipping 45 matching lines @@
 DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kTranslate_Type,
                                             GameBench::kFull_Clear, true)); )
 DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kRotate_Type,
                                             GameBench::kFull_Clear)); )
 
 // Atlased
 DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kTranslate_Type,
                                             GameBench::kFull_Clear, false, true)); )
 DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kTranslate_Type,
                                             GameBench::kFull_Clear, false, true, true)); )