Added varying struct

src/gpu/gl/builders/GrGLGeometryShaderBuilder.cpp

Index: src/gpu/gl/builders/GrGLGeometryShaderBuilder.cpp
diff --git a/src/gpu/gl/builders/GrGLGeometryShaderBuilder.cpp b/src/gpu/gl/builders/GrGLGeometryShaderBuilder.cpp
index 8a3b1f4a6eb7df27dd8826509c637e4601afb565..d8bc7341b0faf2e20d5e4036235d821d31743623 100644
--- a/src/gpu/gl/builders/GrGLGeometryShaderBuilder.cpp
+++ b/src/gpu/gl/builders/GrGLGeometryShaderBuilder.cpp
@@ -15,25 +15,26 @@ GrGLGeometryBuilder::GrGLGeometryBuilder(GrGLProgramBuilder* program)
 
 }
 
-void GrGLGeometryBuilder::addVarying(GrSLType type,
-               const char* name,
-               const char** gsOutName) {
+void GrGLGeometryBuilder::addVarying(GrGLVarying* v) {
     // if we have a GS take each varying in as an array
     // and output as non-array.
-    fInputs.push_back();
-    fInputs.back().setType(type);
-    fInputs.back().setTypeModifier(GrGLShaderVar::kVaryingIn_TypeModifier);
-    fInputs.back().setUnsizedArray();
-    *fInputs.back().accessName() = name;
-    fOutputs.push_back();
-    fOutputs.back().setType(type);
-    fOutputs.back().setTypeModifier(GrGLShaderVar::kVaryingOut_TypeModifier);
-    fProgramBuilder->nameVariable(fOutputs.back().accessName(), 'g', name);
-    if (gsOutName) {
-        *gsOutName = fOutputs.back().getName().c_str();
+    if (v->vsVarying()) {
+        fInputs.push_back();
+        fInputs.back().setType(v->fType);
+        fInputs.back().setTypeModifier(GrGLShaderVar::kVaryingIn_TypeModifier);
+        fInputs.back().setUnsizedArray();
+        *fInputs.back().accessName() = v->fVsOut;
+        v->fGsIn = v->fVsOut;
     }
-}
 
+    if (v->fsVarying()) {
+        fOutputs.push_back();
+        fOutputs.back().setType(v->fType);
+        fOutputs.back().setTypeModifier(GrGLShaderVar::kVaryingOut_TypeModifier);
+        fProgramBuilder->nameVariable(fOutputs.back().accessName(), 'g', v->fName);
+        v->fGsOut = fOutputs.back().getName().c_str();
+    }
+}
 
 bool GrGLGeometryBuilder::compileAndAttachShaders(GrGLuint programId,
         SkTDArray<GrGLuint>* shaderIds) const {