Create GLSLUniformHandler class for gpu backend

src/effects/gradients/SkGradientShaderPriv.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkGradientShaderPriv_DEFINED
 #define SkGradientShaderPriv_DEFINED
 
@@ skipping 401 matching lines @@
 protected:
     /**
      * Subclasses must call this. It will return a key for the part of the shader code controlled
      * by the base class. The subclasses must stick it in their key and then pass it to the below
      * emit* functions from their emitCode function.
      */
     static uint32_t GenBaseGradientKey(const GrProcessor&);
 
     // Emits the uniform used as the y-coord to texture samples in derived classes. Subclasses
     // should call this method from their emitCode().
-    void emitUniforms(GrGLSLFPBuilder* builder, const GrGradientEffect&);
+    void emitUniforms(GrGLSLUniformHandler*, const GrGradientEffect&);
 
 
     // emit code that gets a fragment's color from an expression for t; Has branches for 3 separate
     // control flows inside -- 2 color gradients, 3 color symmetric gradients (both using
     // native GLSL mix), and 4+ color gradients that use the traditional texture lookup.
-    void emitColor(GrGLSLFPBuilder* builder,
-                   GrGLSLFragmentBuilder* fragBuilder,
+    void emitColor(GrGLSLFragmentBuilder* fragBuilder,
+                   GrGLSLUniformHandler* uniformHandler,
                    const GrGLSLCaps* caps,
                    const GrGradientEffect&,
                    const char* gradientTValue,
                    const char* outputColor,
                    const char* inputColor,
                    const TextureSamplerArray& samplers);
 
 private:
     enum {
         kPremulTypeKeyBitCnt = 1,
@@ skipping 16 matching lines @@
     GrGLSLProgramDataManager::UniformHandle fColorStartUni;
     GrGLSLProgramDataManager::UniformHandle fColorMidUni;
     GrGLSLProgramDataManager::UniformHandle fColorEndUni;
 
     typedef GrGLSLFragmentProcessor INHERITED;
 };
 
 #endif
 
 #endif