Create GLSLUniformHandler class for gpu backend

src/effects/gradients/SkLinearGradient.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkLinearGradient.h"
 
 static const float kInv255Float = 1.0f / 255;
@@ skipping 497 matching lines @@
             *dstC++ = cache[toggle + index];
             toggle = next_dither_toggle16(toggle);
 
             dstX += SK_Scalar1;
         } while (--count != 0);
     }
 }
 
 #if SK_SUPPORT_GPU
 
-#include "gl/builders/GrGLProgramBuilder.h"
+#include "glsl/GrGLSLCaps.h"
+#include "glsl/GrGLSLFragmentShaderBuilder.h"
 #include "SkGr.h"
 
 /////////////////////////////////////////////////////////////////////
 
 class GrGLLinearGradient : public GrGLGradientEffect {
 public:
 
     GrGLLinearGradient(const GrProcessor&) {}
 
     virtual ~GrGLLinearGradient() { }
@@ skipping 67 matching lines @@
     const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext,
         GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality);
     GrAlwaysAssert(fp);
     return fp;
 }
 
 /////////////////////////////////////////////////////////////////////
 
 void GrGLLinearGradient::emitCode(EmitArgs& args) {
     const GrLinearGradient& ge = args.fFp.cast<GrLinearGradient>();
-    this->emitUniforms(args.fBuilder, ge);
+    this->emitUniforms(args.fUniformHandler, ge);
     SkString t = args.fFragBuilder->ensureFSCoords2D(args.fCoords, 0);
     t.append(".x");
-    this->emitColor(args.fBuilder,
-                    args.fFragBuilder,
+    this->emitColor(args.fFragBuilder,
+                    args.fUniformHandler,
                     args.fGLSLCaps,
                     ge, t.c_str(),
                     args.fOutputColor,
                     args.fInputColor,
                     args.fSamplers);
 }
 
 /////////////////////////////////////////////////////////////////////
 
 const GrFragmentProcessor* SkLinearGradient::asFragmentProcessor(
@@ skipping 299 matching lines @@
         }
     } else {
         if (fApplyAlphaAfterInterp) {
             this->shade4_dx_clamp<true, false>(dstC, count, fx, dx, invDx, dither);
         } else {
             this->shade4_dx_clamp<false, false>(dstC, count, fx, dx, invDx, dither);
         }
     }
 }