Change random number generator for tests to SkMWCRandom

tests/MatrixTest.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 "Test.h"
 #include "SkMath.h"
 #include "SkMatrix.h"
@@ skipping 150 matching lines @@
     REPORTER_ASSERT(reporter, -SK_Scalar1 == perspY.getMaxStretch());
 
     SkMatrix baseMats[] = {scale, rot90Scale, rotate,
                            translate, perspX, perspY};
     SkMatrix mats[2*SK_ARRAY_COUNT(baseMats)];
     for (size_t i = 0; i < SK_ARRAY_COUNT(baseMats); ++i) {
         mats[i] = baseMats[i];
         bool invertable = mats[i].invert(&mats[i + SK_ARRAY_COUNT(baseMats)]);
         REPORTER_ASSERT(reporter, invertable);
     }
-    SkRandom rand;
+    SkMWCRandom rand;
     for (int m = 0; m < 1000; ++m) {
         SkMatrix mat;
         mat.reset();
         for (int i = 0; i < 4; ++i) {
             int x = rand.nextU() % SK_ARRAY_COUNT(mats);
             mat.postConcat(mats[x]);
         }
         SkScalar stretch = mat.getMaxStretch();
 
         if ((stretch < 0) != mat.hasPerspective()) {
@@ skipping 280 matching lines @@
     REPORTER_ASSERT(reporter, !are_equal(reporter, mat, mat2));
 #endif
 
     test_matrix_max_stretch(reporter);
     test_matrix_is_similarity(reporter);
     test_matrix_recttorect(reporter);
 }
 
 #include "TestClassDef.h"
 DEFINE_TESTCLASS("Matrix", MatrixTestClass, TestMatrix)