Added GrGLFragmentProcessor::EmitArgs struct for use with emitCode()

src/gpu/effects/GrConstColorProcessor.cpp

Index: src/gpu/effects/GrConstColorProcessor.cpp
diff --git a/src/gpu/effects/GrConstColorProcessor.cpp b/src/gpu/effects/GrConstColorProcessor.cpp
index bc09156a711027b30d0ce3d84c4321822df95647..e98a1ff33e8be4533e6ecb98b214fd9b4e218d54 100644
--- a/src/gpu/effects/GrConstColorProcessor.cpp
+++ b/src/gpu/effects/GrConstColorProcessor.cpp
@@ -13,26 +13,23 @@ class GLConstColorProcessor : public GrGLFragmentProcessor {
 public:
     GLConstColorProcessor() : fPrevColor(GrColor_ILLEGAL) {}
 
-    void emitCode(GrGLFPBuilder* builder,
-                  const GrFragmentProcessor& fp,
-                  const char* outputColor,
-                  const char* inputColor,
-                  const TransformedCoordsArray& coords,
-                  const TextureSamplerArray& samplers) override {
-        GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
+    void emitCode(EmitArgs& args) override {
+        GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
         const char* colorUni;
-        fColorUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+        fColorUniform = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                             kVec4f_GrSLType, kMedium_GrSLPrecision, "constantColor",
                                             &colorUni);
-        switch (fp.cast<GrConstColorProcessor>().inputMode()) {
+        switch (args.fFp.cast<GrConstColorProcessor>().inputMode()) {
             case GrConstColorProcessor::kIgnore_InputMode:
-                fsBuilder->codeAppendf("%s = %s;", outputColor, colorUni);
+                fsBuilder->codeAppendf("%s = %s;", args.fOutputColor, colorUni);
                 break;
             case GrConstColorProcessor::kModulateRGBA_InputMode:
-                fsBuilder->codeAppendf("%s = %s * %s;", outputColor, inputColor, colorUni);
+                fsBuilder->codeAppendf("%s = %s * %s;", args.fOutputColor, args.fInputColor,
+                                       colorUni);
                 break;
             case GrConstColorProcessor::kModulateA_InputMode:
-                fsBuilder->codeAppendf("%s = %s.a * %s;", outputColor, inputColor, colorUni);
+                fsBuilder->codeAppendf("%s = %s.a * %s;", args.fOutputColor, args.fInputColor,
+                                       colorUni);
                 break;
         }
     }