Add ShaderBuilders to EmitArgs and remove gettings from ProgBuilder.

src/gpu/effects/GrDisableColorXP.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "effects/GrDisableColorXP.h"
 #include "GrProcessor.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
@@ skipping 45 matching lines @@
 
     ~GLDisableColorXP() override {}
 
     static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder*) {}
 
 private:
     void emitOutputsForBlendState(const EmitArgs& args) override {
         // This emit code should be empty. However, on the nexus 6 there is a driver bug where if
         // you do not give gl_FragColor a value, the gl context is lost and we end up drawing
         // nothing. So this fix just sets the gl_FragColor arbitrarily to 0.
-        GrGLSLXPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
-        fsBuilder->codeAppendf("%s = vec4(0);", args.fOutputPrimary);
+        GrGLSLXPFragmentBuilder* fragBuilder = args.fXPFragBuilder;
+        fragBuilder->codeAppendf("%s = vec4(0);", args.fOutputPrimary);
     }
 
     void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) override {}
 
     typedef GrGLSLXferProcessor INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 DisableColorXP::DisableColorXP() {
@@ skipping 24 matching lines @@
                                                const DstTexture* dst) const {
     return DisableColorXP::Create();
 }
 
 GR_DEFINE_XP_FACTORY_TEST(GrDisableColorXPFactory);
 
 const GrXPFactory* GrDisableColorXPFactory::TestCreate(GrProcessorTestData*) {
     return GrDisableColorXPFactory::Create();
 }