Create GLSLUniformHandler class for gpu backend

src/gpu/effects/GrCustomXfermode.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/GrCustomXfermode.h"
 
 #include "GrCoordTransform.h"
 #include "GrContext.h"
 #include "GrFragmentProcessor.h"
 #include "GrInvariantOutput.h"
 #include "GrPipeline.h"
 #include "GrProcessor.h"
 #include "GrTexture.h"
 #include "GrTextureAccess.h"
 #include "SkXfermode.h"
 #include "glsl/GrGLSLBlend.h"
 #include "glsl/GrGLSLCaps.h"
 #include "glsl/GrGLSLFragmentProcessor.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
-#include "glsl/GrGLSLProgramBuilder.h"
 #include "glsl/GrGLSLProgramDataManager.h"
+#include "glsl/GrGLSLUniformHandler.h"
 #include "glsl/GrGLSLXferProcessor.h"
 
 bool GrCustomXfermode::IsSupportedMode(SkXfermode::Mode mode) {
     return mode > SkXfermode::kLastCoeffMode && mode <= SkXfermode::kLastMode;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // Static helpers
 ///////////////////////////////////////////////////////////////////////////////
 
@@ skipping 116 matching lines @@
         // Apply coverage by multiplying it into the src color before blending. Mixed samples will
         // "just work" automatically. (See onGetOptimizations())
         if (args.fInputCoverage) {
             fragBuilder->codeAppendf("%s = %s * %s;",
                                      args.fOutputPrimary, args.fInputCoverage, args.fInputColor);
         } else {
             fragBuilder->codeAppendf("%s = %s;", args.fOutputPrimary, args.fInputColor);
         }
     }
 
-    void emitBlendCodeForDstRead(GrGLSLXPBuilder* pb,
-                                 GrGLSLXPFragmentBuilder* fragBuilder,
+    void emitBlendCodeForDstRead(GrGLSLXPFragmentBuilder* fragBuilder,
+                                 GrGLSLUniformHandler* uniformHandler,
                                  const char* srcColor,
                                  const char* srcCoverage,
                                  const char* dstColor,
                                  const char* outColor,
                                  const char* outColorSecondary,
                                  const GrXferProcessor& proc) override {
         const CustomXP& xp = proc.cast<CustomXP>();
         SkASSERT(!xp.hasHWBlendEquation());
 
         GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.mode());
@@ skipping 227 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrXPFactory* GrCustomXfermode::CreateXPFactory(SkXfermode::Mode mode) {
     if (!GrCustomXfermode::IsSupportedMode(mode)) {
         return nullptr;
     } else {
         return new CustomXPFactory(mode);
     }
 }