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

src/effects/SkDiscretePathEffect.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkDiscretePathEffect.h"
@@ skipping 13 matching lines @@
     : fSegLength(segLength), fPerterb(deviation)
 {
 }
 
 bool SkDiscretePathEffect::filterPath(SkPath* dst, const SkPath& src,
                                       SkStrokeRec* rec, const SkRect*) const {
     bool doFill = rec->isFillStyle();
 
     SkPathMeasure   meas(src, doFill);
     uint32_t        seed = SkScalarRound(meas.getLength());
-    SkRandom        rand(seed ^ ((seed << 16) | (seed >> 16)));
+    SkLCGRandom     rand(seed ^ ((seed << 16) | (seed >> 16)));
     SkScalar        scale = fPerterb;
     SkPoint         p;
     SkVector        v;
 
     do {
         SkScalar    length = meas.getLength();
 
         if (fSegLength * (2 + doFill) > length) {
             meas.getSegment(0, length, dst, true);  // to short for us to mangle
         } else {
@@ skipping 28 matching lines @@
 void SkDiscretePathEffect::flatten(SkFlattenableWriteBuffer& buffer) const {
     this->INHERITED::flatten(buffer);
     buffer.writeScalar(fSegLength);
     buffer.writeScalar(fPerterb);
 }
 
 SkDiscretePathEffect::SkDiscretePathEffect(SkFlattenableReadBuffer& buffer) {
     fSegLength = buffer.readScalar();
     fPerterb = buffer.readScalar();
 }