Make XPFragmentBuilder only Builder with access to DstCopy.

src/gpu/effects/GrTextureDomain.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 "GrTextureDomain.h"
 #include "GrInvariantOutput.h"
 #include "GrSimpleTextureEffect.h"
@@ skipping 179 matching lines @@
 
 void GrGLTextureDomainEffect::emitCode(GrGLFPBuilder* builder,
                                        const GrFragmentProcessor& fp,
                                        const char* outputColor,
                                        const char* inputColor,
                                        const TransformedCoordsArray& coords,
                                        const TextureSamplerArray& samplers) {
     const GrTextureDomainEffect& textureDomainEffect = fp.cast<GrTextureDomainEffect>();
     const GrTextureDomain& domain = textureDomainEffect.textureDomain();
 
-    GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     SkString coords2D = fsBuilder->ensureFSCoords2D(coords, 0);
     fGLDomain.sampleTexture(fsBuilder, domain, outputColor, coords2D, samplers[0], inputColor);
 }
 
 void GrGLTextureDomainEffect::setData(const GrGLProgramDataManager& pdman,
                                       const GrProcessor& processor) {
     const GrTextureDomainEffect& textureDomainEffect = processor.cast<GrTextureDomainEffect>();
     const GrTextureDomain& domain = textureDomainEffect.textureDomain();
     fGLDomain.setData(pdman, domain, processor.texture(0)->origin());
 }
@@ skipping 91 matching lines @@
     const SkMatrix& matrix = GrTest::TestMatrix(random);
     bool bilerp = mode != GrTextureDomain::kRepeat_Mode ? random->nextBool() : false;
     GrCoordSet coords = random->nextBool() ? kLocal_GrCoordSet : kDevice_GrCoordSet;
     return GrTextureDomainEffect::Create(textures[texIdx],
                                          matrix,
                                          domain,
                                          mode,
                                          bilerp ? GrTextureParams::kBilerp_FilterMode : GrTextureParams::kNone_FilterMode,
                                          coords);
 }