Create GLSLUniformHandler class for gpu backend

src/gpu/effects/GrPorterDuffXferProcessor.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/GrPorterDuffXferProcessor.h"
 
 #include "GrBlend.h"
 #include "GrCaps.h"
 #include "GrPipeline.h"
 #include "GrProcessor.h"
 #include "GrProcOptInfo.h"
 #include "GrTypes.h"
 #include "GrXferProcessor.h"
 #include "glsl/GrGLSLBlend.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
-#include "glsl/GrGLSLProgramBuilder.h"
 #include "glsl/GrGLSLProgramDataManager.h"
+#include "glsl/GrGLSLUniformHandler.h"
 #include "glsl/GrGLSLXferProcessor.h"
 
 /**
  * Wraps the shader outputs and HW blend state that comprise a Porter Duff blend mode with coverage.
  */
 struct BlendFormula {
 public:
     /**
      * Values the shader can write to primary and secondary outputs. These must all be modulated by
      * coverage to support mixed samples. The XP will ignore the multiplies when not using coverage.
@@ skipping 507 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 
 class GLShaderPDXferProcessor : public GrGLSLXferProcessor {
 public:
     static void GenKey(const GrProcessor& processor, GrProcessorKeyBuilder* b) {
         const ShaderPDXferProcessor& xp = processor.cast<ShaderPDXferProcessor>();
         b->add32(xp.getXfermode());
     }
 
 private:
-    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 ShaderPDXferProcessor& xp = proc.cast<ShaderPDXferProcessor>();
 
         GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.getXfermode());
 
@@ skipping 351 matching lines @@
         }
         return get_lcd_blend_formula(optimizations.fCoveragePOI, 
                                      SkXfermode::kSrcOver_Mode).hasSecondaryOutput();
     }
     // We fallback on the shader XP when the blend formula would use dual source blending but we
     // don't have support for it.
     return get_blend_formula(optimizations.fColorPOI, optimizations.fCoveragePOI,
                              hasMixedSamples, SkXfermode::kSrcOver_Mode).hasSecondaryOutput();
 }