Refactor how we store and use samplers in Ganesh

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 31 matching lines @@
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 void GrTextureDomain::GLDomain::sampleTexture(GrGLSLShaderBuilder* builder,
                                               GrGLSLUniformHandler* uniformHandler,
                                               const GrGLSLCaps* glslCaps,
                                               const GrTextureDomain& textureDomain,
                                               const char* outColor,
                                               const SkString& inCoords,
-                                              const GrGLSLSampler& sampler,
+                                              GrGLSLFragmentProcessor::SamplerHandle sampler,
                                               const char* inModulateColor) {
     SkASSERT((Mode)-1 == fMode || textureDomain.mode() == fMode);
     SkDEBUGCODE(fMode = textureDomain.mode();)
 
     if (textureDomain.mode() != kIgnore_Mode && !fDomainUni.isValid()) {
         const char* name;
         SkString uniName("TexDom");
         if (textureDomain.fIndex >= 0) {
             uniName.appendS32(textureDomain.fIndex);
         }
@@ skipping 229 matching lines @@
     bool bilerp = mode != GrTextureDomain::kRepeat_Mode ? d->fRandom->nextBool() : false;
     GrCoordSet coords = d->fRandom->nextBool() ? kLocal_GrCoordSet : kDevice_GrCoordSet;
     return GrTextureDomainEffect::Create(
         d->fTextures[texIdx],
         matrix,
         domain,
         mode,
         bilerp ? GrTextureParams::kBilerp_FilterMode : GrTextureParams::kNone_FilterMode,
         coords);
 }