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

tests/RandomTest.cpp

Index: tests/RandomTest.cpp
diff --git a/tests/RandomTest.cpp b/tests/RandomTest.cpp
index 51408e960536b6ee608a2ab481960d305a4aee01..c9fee4aa23619976688a4f381e047f8c8d6f0159 100644
--- a/tests/RandomTest.cpp
+++ b/tests/RandomTest.cpp
@@ -61,7 +61,7 @@ static void test_random_byte(skiatest::Reporter* reporter, int shift) {
     int bins[256];
     memset(bins, 0, sizeof(int)*256);
 
-    SkMWCRandom rand;
+    SkRandom rand;
     for (int i = 0; i < 256*10000; ++i) {
         bins[(rand.nextU() >> shift) & 0xff]++;
     }
@@ -73,7 +73,7 @@ static void test_random_float(skiatest::Reporter* reporter) {
     int bins[256];
     memset(bins, 0, sizeof(int)*256);
 
-    SkMWCRandom rand;
+    SkRandom rand;
     for (int i = 0; i < 256*10000; ++i) {
         float f = rand.nextF();
         REPORTER_ASSERT(reporter, 0.0f <= f && f < 1.0f);
@@ -108,7 +108,7 @@ static double test_single_gorilla(skiatest::Reporter* reporter, int shift) {
     const int kNumEntries = kN >> 5;  // dividing by 32
     unsigned int entries[kNumEntries];
 
-    SkMWCRandom rand;
+    SkRandom rand;
     memset(entries, 0, sizeof(unsigned int)*kNumEntries);
     // pre-seed our string value
     int value = 0;
@@ -161,7 +161,7 @@ static void test_gorilla(skiatest::Reporter* reporter) {
 }
 
 static void test_range(skiatest::Reporter* reporter) {
-    SkMWCRandom rand;
+    SkRandom rand;
 
     // just to make sure we don't crash in this case
     (void) rand.nextRangeU(0, 0xffffffff);