Add GrShaderFlags enum

src/gpu/glsl/GrGLSLShaderBuilder.cpp

Index: src/gpu/glsl/GrGLSLShaderBuilder.cpp
diff --git a/src/gpu/glsl/GrGLSLShaderBuilder.cpp b/src/gpu/glsl/GrGLSLShaderBuilder.cpp
index a2cf66cb4097c591f6a5014328356291d8acc09c..c94a85534f7fb7b3ec767ecced979b2a50c7af30 100644
--- a/src/gpu/glsl/GrGLSLShaderBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLShaderBuilder.cpp
@@ -158,8 +158,7 @@ void GrGLSLShaderBuilder::finalize(uint32_t visibility) {
     this->versionDecl() = fProgramBuilder->glslCaps()->versionDeclString();
     this->compileAndAppendLayoutQualifiers();
     SkASSERT(visibility);
-    fProgramBuilder->appendUniformDecls((GrGLSLUniformHandler::ShaderVisibility) visibility,
-                                        &this->uniforms());
+    fProgramBuilder->appendUniformDecls((GrShaderFlags) visibility, &this->uniforms());
     this->appendDecls(fInputs, &this->inputs());
     this->appendDecls(fOutputs, &this->outputs());
     this->onFinalize();