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

bench/FSRectBench.cpp

 
 /*
  * Copyright 2013 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"
 
 /**
  * Draws full screen opaque rectangles. It is designed to test any optimizations in the GPU backend
  * to turn such draws into clears.
  */
 class FSRectBench : public SkBenchmark {
 public:
     FSRectBench(void* param)
         : INHERITED(param)
         , fInit(false) {
     }
 
 protected:
     virtual const char* onGetName() SK_OVERRIDE { return "fullscreen_rects"; }
 
     virtual void onPreDraw() SK_OVERRIDE {
         if (!fInit) {
-            SkMWCRandom rand;
+            SkRandom rand;
             static const SkScalar kMinOffset = 0;
             static const SkScalar kMaxOffset = 100 * SK_Scalar1;
             static const SkScalar kOffsetRange = kMaxOffset - kMinOffset;
             for (int i = 0; i < N; ++i) {
                 fRects[i].fLeft = -kMinOffset - SkScalarMul(rand.nextUScalar1(), kOffsetRange);
                 fRects[i].fTop = -kMinOffset - SkScalarMul(rand.nextUScalar1(), kOffsetRange);
                 fRects[i].fRight = W + kMinOffset + SkScalarMul(rand.nextUScalar1(), kOffsetRange);
                 fRects[i].fBottom = H + kMinOffset + SkScalarMul(rand.nextUScalar1(), kOffsetRange);
                 fColors[i] = rand.nextU() | 0xFF000000;
             }
@@ skipping 16 matching lines @@
         N = SkBENCHLOOP(300)
     };
     SkRect  fRects[N];
     SkColor fColors[N];
     bool fInit;
 
     typedef SkBenchmark INHERITED;
 };
 
 DEF_BENCH( return SkNEW_ARGS(FSRectBench, (p)); )