create GrTestUtils.h, move some common functions into it

src/gpu/GrProcessor.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrProcessor.h"
 #include "GrContext.h"
 #include "GrCoordTransform.h"
@@ skipping 58 matching lines @@
 
 template<>
 void GrProcessorTestFactory<GrXPFactory>::VerifyFactoryCount() {
     if (kXPFactoryCount != GetFactories()->count()) {
         SkFAIL("Wrong number of xp factory factories!");
     }
 }
 
 #endif
 
-namespace GrProcessorUnitTest {
-const SkMatrix& TestMatrix(SkRandom* random) {
-    static SkMatrix gMatrices[5];
-    static bool gOnce;
-    if (!gOnce) {
-        gMatrices[0].reset();
-        gMatrices[1].setTranslate(SkIntToScalar(-100), SkIntToScalar(100));
-        gMatrices[2].setRotate(SkIntToScalar(17));
-        gMatrices[3].setRotate(SkIntToScalar(185));
-        gMatrices[3].postTranslate(SkIntToScalar(66), SkIntToScalar(-33));
-        gMatrices[3].postScale(SkIntToScalar(2), SK_ScalarHalf);
-        gMatrices[4].setRotate(SkIntToScalar(215));
-        gMatrices[4].set(SkMatrix::kMPersp0, 0.00013f);
-        gMatrices[4].set(SkMatrix::kMPersp1, -0.000039f);
-        gOnce = true;
-    }
-    return gMatrices[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gMatrices)))];
-}
-}
-
 
 // We use a global pool protected by a mutex(spinlock). Chrome may use the same GrContext on
 // different threads. The GrContext is not used concurrently on different threads and there is a
 // memory barrier between accesses of a context on different threads. Also, there may be multiple
 // GrContexts and those contexts may be in use concurrently on different threads.
 namespace {
 SK_DECLARE_STATIC_SPINLOCK(gProcessorSpinlock);
 class MemoryPoolAccessor {
 public:
     MemoryPoolAccessor() { gProcessorSpinlock.acquire(); }
@@ skipping 61 matching lines @@
 
 void GrFragmentProcessor::computeInvariantOutput(GrInvariantOutput* inout) const {
     this->onComputeInvariantOutput(inout);
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 // Initial static variable from GrXPFactory
 int32_t GrXPFactory::gCurrXPFClassID =
         GrXPFactory::kIllegalXPFClassID;