Drop unused shader support for sample variables

Bug: skia:
Change-Id: I9e2b7da8c916703027d8dd4303ae67f4e69bcf87
Reviewed-on: https://skia-review.googlesource.com/107356
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
diff --git a/src/gpu/GrDefaultGeoProcFactory.cpp b/src/gpu/GrDefaultGeoProcFactory.cpp
index 37967e4..d7a5ea5 100644
--- a/src/gpu/GrDefaultGeoProcFactory.cpp
+++ b/src/gpu/GrDefaultGeoProcFactory.cpp
@@ -73,7 +73,7 @@
         void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
             const DefaultGeoProc& gp = args.fGP.cast<DefaultGeoProc>();
             GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
-            GrGLSLPPFragmentBuilder* fragBuilder = args.fFragBuilder;
+            GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
             GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
             GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;