create GrTestUtils.h, move some common functions into it

src/gpu/effects/GrDashingEffect.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 "GrDashingEffect.h"
 
 #include "GrBatch.h"
@@ skipping 983 matching lines @@
 }
 
 GR_DEFINE_GEOMETRY_PROCESSOR_TEST(DashingCircleEffect);
 
 GrGeometryProcessor* DashingCircleEffect::TestCreate(SkRandom* random,
                                                      GrContext*,
                                                      const GrDrawTargetCaps& caps,
                                                      GrTexture*[]) {
     DashAAMode aaMode = static_cast<DashAAMode>(random->nextULessThan(kDashAAModeCount));
     return DashingCircleEffect::Create(GrRandomColor(random),
-                                      aaMode, GrProcessorUnitTest::TestMatrix(random));
+                                      aaMode, GrTest::TestMatrix(random));
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 class GLDashingLineEffect;
 
 struct DashingLineBatchTracker {
     GrGPInput fInputColorType;
     GrColor  fColor;
     bool fUsesLocalCoords;
@@ skipping 238 matching lines @@
 }
 
 GR_DEFINE_GEOMETRY_PROCESSOR_TEST(DashingLineEffect);
 
 GrGeometryProcessor* DashingLineEffect::TestCreate(SkRandom* random,
                                                    GrContext*,
                                                    const GrDrawTargetCaps& caps,
                                                    GrTexture*[]) {
     DashAAMode aaMode = static_cast<DashAAMode>(random->nextULessThan(kDashAAModeCount));
     return DashingLineEffect::Create(GrRandomColor(random),
-                                     aaMode, GrProcessorUnitTest::TestMatrix(random));
+                                     aaMode, GrTest::TestMatrix(random));
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GrGeometryProcessor* create_dash_gp(GrColor color,
                                            DashAAMode dashAAMode,
                                            DashCap cap,
                                            const SkMatrix& localMatrix) {
     switch (cap) {
         case kRound_DashCap:
             return DashingCircleEffect::Create(color, dashAAMode, localMatrix);
         case kNonRound_DashCap:
             return DashingLineEffect::Create(color, dashAAMode, localMatrix);
         default:
             SkFAIL("Unexpected dashed cap.");
     }
     return NULL;
 }