create GrTestUtils.h, move some common functions into it

src/gpu/GrDefaultGeoProcFactory.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 "GrDefaultGeoProcFactory.h"
 
 #include "GrInvariantOutput.h"
@@ skipping 247 matching lines @@
     }
     if (random->nextBool()) {
         flags |= GrDefaultGeoProcFactory::kCoverage_GPType;
     }
     if (random->nextBool()) {
         flags |= GrDefaultGeoProcFactory::kLocalCoord_GPType;
     }
 
     return DefaultGeoProc::Create(flags,
                                   GrRandomColor(random),
-                                  GrProcessorUnitTest::TestMatrix(random),
-                                  GrProcessorUnitTest::TestMatrix(random),
+                                  GrTest::TestMatrix(random),
+                                  GrTest::TestMatrix(random),
                                   random->nextBool(),
                                   GrRandomCoverage(random));
 }
 
 const GrGeometryProcessor* GrDefaultGeoProcFactory::Create(uint32_t gpTypeFlags,
                                                            GrColor color,
                                                            const SkMatrix& viewMatrix,
                                                            const SkMatrix& localMatrix,
                                                            bool opaqueVertexColors,
                                                            uint8_t coverage) {
     return DefaultGeoProc::Create(gpTypeFlags,
                                   color,
                                   viewMatrix,
                                   localMatrix,
                                   opaqueVertexColors,
                                   coverage);
 }