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

bench/PathUtilsBench.cpp

 /*
  * Copyright 2011 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 "SkPathUtils.h"
 #include "SkRandom.h"
 #include "SkTime.h"
 #include "SkString.h"
 
 #define H 16
 #define W 16
 #define STRIDE 2
 
 //this function is redefined for sample, test, and bench. is there anywhere
 // I can put it to avoid code duplcation?
 static void fillRandomBits( int chars, char* bits ){
-    SkMWCRandom rand(SkTime::GetMSecs());
+    SkRandom rand(SkTime::GetMSecs());
 
     for (int i = 0; i < chars; ++i){
         bits[i] = rand.nextU();
     }
 }
 
 static void path_proc(char* bits, SkPath* path) {
     SkPathUtils::BitsToPath_Path(path, bits, H, W, STRIDE);
 }
 
@@ skipping 36 matching lines @@
 
 private:
     typedef SkBenchmark INHERITED;
 };
 
 static SkBenchmark* PU_path(void* p) { return SkNEW_ARGS(PathUtilsBench, (p, path_proc, "path")); }
 static SkBenchmark* PU_region(void* p) { return SkNEW_ARGS(PathUtilsBench, (p, region_proc, "region")); }
 
 static BenchRegistry PU_Path(PU_path);
 static BenchRegistry PU_Region(PU_region);