Allow gradient optimization with perspective

src/gpu/GrEffect.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 "GrEffect.h"
 #include "GrBackendEffectFactory.h"
 #include "GrContext.h"
@@ skipping 71 matching lines @@
 GrEffect::~GrEffect() {
     SkASSERT(NULL == fEffectRef);
 }
 
 const char* GrEffect::name() const {
     return this->getFactory().name();
 }
 
 void GrEffect::addCoordTransform(const GrCoordTransform* transform) {
     fCoordTransforms.push_back(transform);
+    SkDEBUGCODE(transform->setInEffect();)
 }
 
 void GrEffect::addTextureAccess(const GrTextureAccess* access) {
     fTextureAccesses.push_back(access);
 }
 
 void* GrEffect::operator new(size_t size) {
     return GrEffect_Globals::GetTLS()->allocate(size);
 }
 
 void GrEffect::operator delete(void* target) {
     GrEffect_Globals::GetTLS()->release(target);
 }
 
 #ifdef SK_DEBUG
 void GrEffect::assertEquality(const GrEffect& other) const {
     SkASSERT(this->numTransforms() == other.numTransforms());
     for (int i = 0; i < this->numTransforms(); ++i) {
         SkASSERT(this->coordTransform(i) == other.coordTransform(i));
     }
     SkASSERT(this->numTextures() == other.numTextures());
     for (int i = 0; i < this->numTextures(); ++i) {
         SkASSERT(this->textureAccess(i) == other.textureAccess(i));
     }
 }
 #endif