Create GLSLUniformHandler class for gpu backend

src/gpu/effects/GrConstColorProcessor.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "effects/GrConstColorProcessor.h"
+#include "GrInvariantOutput.h"
 #include "glsl/GrGLSLFragmentProcessor.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
-#include "glsl/GrGLSLProgramBuilder.h"
 #include "glsl/GrGLSLProgramDataManager.h"
+#include "glsl/GrGLSLUniformHandler.h"
 
 class GLConstColorProcessor : public GrGLSLFragmentProcessor {
 public:
     GLConstColorProcessor() : fPrevColor(GrColor_ILLEGAL) {}
 
     void emitCode(EmitArgs& args) override {
         GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
         const char* colorUni;
-        fColorUniform = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragment_Visibility,
-                                            kVec4f_GrSLType, kMedium_GrSLPrecision, "constantColor",
-                                            &colorUni);
+        fColorUniform = args.fUniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility,
+                                                         kVec4f_GrSLType, kMedium_GrSLPrecision,
+                                                         "constantColor",
+                                                         &colorUni);
         GrConstColorProcessor::InputMode mode = args.fFp.cast<GrConstColorProcessor>().inputMode();
         if (!args.fInputColor) {
             mode = GrConstColorProcessor::kIgnore_InputMode;
         }
         switch (mode) {
             case GrConstColorProcessor::kIgnore_InputMode:
                 fragBuilder->codeAppendf("%s = %s;", args.fOutputColor, colorUni);
                 break;
             case GrConstColorProcessor::kModulateRGBA_InputMode:
                 fragBuilder->codeAppendf("%s = %s * %s;", args.fOutputColor, args.fInputColor,
@@ skipping 92 matching lines @@
             color = 0;
             break;
         case 2:
             color = d->fRandom->nextULessThan(0x100);
             color = color | (color << 8) | (color << 16) | (color << 24);
             break;
     }
     InputMode mode = static_cast<InputMode>(d->fRandom->nextULessThan(kInputModeCnt));
     return GrConstColorProcessor::Create(color, mode);
 }