Move glsl onto EmitArgs struct for emitCode

src/effects/SkDisplacementMapEffect.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDisplacementMapEffect.h"
 #include "SkDevice.h"
 #include "SkReadBuffer.h"
@@ skipping 590 matching lines @@
         break;
       case SkDisplacementMapEffect::kA_ChannelSelectorType:
         fragBuilder->codeAppend("a");
         break;
       case SkDisplacementMapEffect::kUnknown_ChannelSelectorType:
       default:
         SkDEBUGFAIL("Unknown Y channel selector");
     }
     fragBuilder->codeAppend("-vec2(0.5));\t\t");
 
-    fGLDomain.sampleTexture(fragBuilder, domain, args.fOutputColor, SkString(cCoords),
+    fGLDomain.sampleTexture(fragBuilder,
+                            args.fGLSLCaps,
+                            domain,
+                            args.fOutputColor,
+                            SkString(cCoords),
                             args.fSamplers[1]);
     fragBuilder->codeAppend(";\n");
 }
 
 void GrGLDisplacementMapEffect::onSetData(const GrGLSLProgramDataManager& pdman,
                                           const GrProcessor& proc) {
     const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMapEffect>();
     GrTexture* colorTex = displacementMap.texture(1);
     SkScalar scaleX = displacementMap.scale().fX / colorTex->width();
     SkScalar scaleY = displacementMap.scale().fY / colorTex->height();
     pdman.set2f(fScaleUni, SkScalarToFloat(scaleX),
                 colorTex->origin() == kTopLeft_GrSurfaceOrigin ?
                 SkScalarToFloat(scaleY) : SkScalarToFloat(-scaleY));
     fGLDomain.setData(pdman, displacementMap.domain(), colorTex->origin());
 }
 
 void GrGLDisplacementMapEffect::GenKey(const GrProcessor& proc,
                                        const GrGLSLCaps&, GrProcessorKeyBuilder* b) {
     const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMapEffect>();
 
     uint32_t xKey = displacementMap.xChannelSelector();
     uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBits;
 
     b->add32(xKey | yKey);
 }
 #endif