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

tests/GLProgramsTest.cpp

Index: tests/GLProgramsTest.cpp
diff --git a/tests/GLProgramsTest.cpp b/tests/GLProgramsTest.cpp
index d21ae5d4cd8f0d16ca4d13ec48a8b54a7ed364cb..d36c48d82e4db7f2859bc1845a5341755623849b 100644
--- a/tests/GLProgramsTest.cpp
+++ b/tests/GLProgramsTest.cpp
@@ -40,15 +40,10 @@ class GLBigKeyProcessor : public GrGLFragmentProcessor {
 public:
     GLBigKeyProcessor(const GrProcessor&) {}
 
-    virtual void emitCode(GrGLFPBuilder* builder,
-                          const GrFragmentProcessor& fp,
-                          const char* outputColor,
-                          const char* inputColor,
-                          const TransformedCoordsArray&,
-                          const TextureSamplerArray&) {
+    virtual void emitCode(EmitArgs& args) override {
         // pass through
-        GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder();
-        fsBuilder->codeAppendf("%s = %s;\n", outputColor, inputColor);
+        GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
+        fsBuilder->codeAppendf("%s = %s;\n", args.fOutputColor, args.fInputColor);
     }
 
     static void GenKey(const GrProcessor& processor, const GrGLSLCaps&, GrProcessorKeyBuilder* b) {