Fix unit tests

src/gpu/effects/GrRRectEffect.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrRRectEffect.h"
 
 #include "gl/GrGLEffect.h"
@@ skipping 437 matching lines @@
                                                const GrDrawTargetCaps& caps,
                                                GrTexture*[]) {
     SkScalar w = random->nextRangeScalar(20.f, 1000.f);
     SkScalar h = random->nextRangeScalar(20.f, 1000.f);
     SkScalar rx = random->nextRangeF(kRadiusMin, 9.f);
     SkScalar ry = random->nextRangeF(kRadiusMin, 9.f);
     SkRRect rrect;
     rrect.setRectXY(SkRect::MakeWH(w, h), rx, ry);
     GrEffectRef* effect;
     do {
-        GrEffectEdgeType et = (GrEffectEdgeType)random->nextULessThan(kGrEffectEdgeTypeCnt);
+        GrEffectEdgeType et = random->nextBool() ? kFillAA_GrEffectEdgeType : 
+                                                   kInverseFillAA_GrEffectEdgeType;
         effect = EllipticalRRectEffect::Create(et, rrect);
     } while (NULL == effect);
     return effect;
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 class GLEllipticalRRectEffect : public GrGLEffect {
 public:
     GLEllipticalRRectEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
@@ skipping 159 matching lines @@
             case CircularRRectEffect::kAll_CornerFlags:
                 break;
             default:
                 return NULL;
         }
     } else {
         return NULL;
     }
     return CircularRRectEffect::Create(edgeType, cornerFlags, rrect);
 }