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

include/gpu/GrEffectUnitTest.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrEffectUnitTest_DEFINED
 #define GrEffectUnitTest_DEFINED
 
 #include "GrNoncopyable.h"
 #include "SkRandom.h"
 #include "SkTArray.h"
 
 class SkMatrix;
 class GrDrawTargetCaps;
 
 namespace GrEffectUnitTest {
 // Used to access the dummy textures in TestCreate procs.
 enum {
     kSkiaPMTextureIdx = 0,
     kAlphaTextureIdx = 1,
 };
 
 /**
  * A helper for use in GrEffect::TestCreate functions.
  */
-const SkMatrix& TestMatrix(SkMWCRandom*);
+const SkMatrix& TestMatrix(SkRandom*);
 
 }
 
 #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
 
 class GrContext;
 class GrEffectRef;
 class GrTexture;
 
 class GrEffectTestFactory : GrNoncopyable {
 public:
 
-    typedef GrEffectRef* (*CreateProc)(SkMWCRandom*,
+    typedef GrEffectRef* (*CreateProc)(SkRandom*,
                                        GrContext*,
                                        const GrDrawTargetCaps& caps,
                                        GrTexture* dummyTextures[]);
 
     GrEffectTestFactory(CreateProc createProc) {
         fCreateProc = createProc;
         GetFactories()->push_back(this);
     }
 
-    static GrEffectRef* CreateStage(SkMWCRandom* random,
+    static GrEffectRef* CreateStage(SkRandom* random,
                                     GrContext* context,
                                     const GrDrawTargetCaps& caps,
                                     GrTexture* dummyTextures[]) {
         uint32_t idx = random->nextRangeU(0, GetFactories()->count() - 1);
         GrEffectTestFactory* factory = (*GetFactories())[idx];
         return factory->fCreateProc(random, context, caps, dummyTextures);
     }
 
 private:
     CreateProc fCreateProc;
     static SkTArray<GrEffectTestFactory*, true>* GetFactories();
 };
 
 /** GrEffect subclasses should insert this macro in their declaration to be included in the
  *  program generation unit test.
  */
 #define GR_DECLARE_EFFECT_TEST                                                      \
     static GrEffectTestFactory gTestFactory;                                        \
-    static GrEffectRef* TestCreate(SkMWCRandom*,                                    \
+    static GrEffectRef* TestCreate(SkRandom*,                                    \
                                    GrContext*,                                      \
                                    const GrDrawTargetCaps&,                         \
                                    GrTexture* dummyTextures[2])
 
 /** GrEffect subclasses should insert this macro in their implementation file. They must then
  *  also implement this static function:
- *      GrEffect* TestCreate(SkMWCRandom*,
+ *      GrEffect* TestCreate(SkRandom*,
  *                           GrContext*,
  *                           const GrDrawTargetCaps&,
  *                           GrTexture* dummyTextures[2]);
  * dummyTextures[] are valid textures that can optionally be used to construct GrTextureAccesses.
  * The first texture has config kSkia8888_GrPixelConfig and the second has
  * kAlpha_8_GrPixelConfig. TestCreate functions are also free to create additional textures using
  * the GrContext.
  */
 #define GR_DEFINE_EFFECT_TEST(Effect)                                               \
     GrEffectTestFactory Effect :: gTestFactory(Effect :: TestCreate)
 
 #else // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
 
 // The unit test relies on static initializers. Just declare the TestCreate function so that
 // its definitions will compile.
 #define GR_DECLARE_EFFECT_TEST                                                      \
-    static GrEffectRef* TestCreate(SkMWCRandom*,                                    \
+    static GrEffectRef* TestCreate(SkRandom*,                                    \
                                    GrContext*,                                      \
                                    const GrDrawTargetCaps&,                         \
                                    GrTexture* dummyTextures[2])
 #define GR_DEFINE_EFFECT_TEST(X)
 
 #endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
 #endif