Add GrShaderFlags enum

src/effects/GrCircleBlurFragmentProcessor.cpp

Index: src/effects/GrCircleBlurFragmentProcessor.cpp
diff --git a/src/effects/GrCircleBlurFragmentProcessor.cpp b/src/effects/GrCircleBlurFragmentProcessor.cpp
index decb3c2d5e855f33312aae2ffe3dc73c71d3544d..f101a1de7c072ea92a7b70481aa3ec7f7b038f12 100644
--- a/src/effects/GrCircleBlurFragmentProcessor.cpp
+++ b/src/effects/GrCircleBlurFragmentProcessor.cpp
@@ -40,7 +40,7 @@ void GrGLCircleBlurFragmentProcessor::emitCode(EmitArgs& args) {
     // x,y  - the center of the circle
     // z    - the distance at which the intensity starts falling off (e.g., the start of the table)
     // w    - the inverse of the profile texture size
-    fDataUniform = args.fUniformHandler->addUniform(GrGLSLUniformHandler::kFragment_Visibility,
+    fDataUniform = args.fUniformHandler->addUniform(kFragment_GrShaderFlag,
                                                     kVec4f_GrSLType,
                                                     kDefault_GrSLPrecision,
                                                     "data",