Finalize gpu shaders in ProgramBuilding.

src/gpu/glsl/GrGLSLProgramBuilder.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLSLProgramBuilder_DEFINED
 #define GrGLSLProgramBuilder_DEFINED
 
@@ skipping 80 matching lines @@
     GrGLSLXferProcessor* fXferProcessor;
     GrGLSLFragProcs fFragmentProcessors;
 
 protected:
     explicit GrGLSLProgramBuilder(const DrawArgs& args);
 
     bool emitAndInstallProcs(GrGLSLExpr4* inputColor, GrGLSLExpr4* inputCoverage, int maxTextures);
 
     void cleanupFragmentProcessors();
 
+    void finalizeShaders();
+
 private:
     // reset is called by program creator between each processor's emit code.  It increments the
     // stage offset for variable name mangling, and also ensures verfication variables in the
     // fragment shader are cleared.
     void reset() {
         this->addStage();
         fFS.reset();
     }
     void addStage() { fStageIndex++; }
 
@@ skipping 34 matching lines @@
     void verify(const GrFragmentProcessor&);
 
     virtual void emitSamplers(const GrProcessor& processor,
                               GrGLSLTextureSampler::TextureSamplerArray* outSamplers) = 0;
 
     GrGLSLPrimitiveProcessor::TransformsIn  fCoordTransforms;
     GrGLSLPrimitiveProcessor::TransformsOut fOutCoords;
 };
 
 #endif