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/glsl/GrGLSLPrimitiveProcessor.h b/src/gpu/glsl/GrGLSLPrimitiveProcessor.h
index 30ca143..613ae07 100644
--- a/src/gpu/glsl/GrGLSLPrimitiveProcessor.h
+++ b/src/gpu/glsl/GrGLSLPrimitiveProcessor.h
@@ -14,7 +14,7 @@
 #include "glsl/GrGLSLUniformHandler.h"
 
 class GrPrimitiveProcessor;
-class GrGLSLPPFragmentBuilder;
+class GrGLSLFPFragmentBuilder;
 class GrGLSLGeometryBuilder;
 class GrGLSLGPBuilder;
 class GrGLSLVaryingHandler;
@@ -67,7 +67,7 @@
     struct EmitArgs {
         EmitArgs(GrGLSLVertexBuilder* vertBuilder,
                  GrGLSLGeometryBuilder* geomBuilder,
-                 GrGLSLPPFragmentBuilder* fragBuilder,
+                 GrGLSLFPFragmentBuilder* fragBuilder,
                  GrGLSLVaryingHandler* varyingHandler,
                  GrGLSLUniformHandler* uniformHandler,
                  const GrShaderCaps* caps,
@@ -93,7 +93,7 @@
             , fFPCoordTransformHandler(transformHandler) {}
         GrGLSLVertexBuilder* fVertBuilder;
         GrGLSLGeometryBuilder* fGeomBuilder;
-        GrGLSLPPFragmentBuilder* fFragBuilder;
+        GrGLSLFPFragmentBuilder* fFragBuilder;
         GrGLSLVaryingHandler* fVaryingHandler;
         GrGLSLUniformHandler* fUniformHandler;
         const GrShaderCaps* fShaderCaps;
@@ -129,7 +129,7 @@
     static SkMatrix GetTransformMatrix(const SkMatrix& localMatrix, const GrCoordTransform&);
 
 protected:
-    void setupUniformColor(GrGLSLPPFragmentBuilder* fragBuilder,
+    void setupUniformColor(GrGLSLFPFragmentBuilder* fragBuilder,
                            GrGLSLUniformHandler* uniformHandler,
                            const char* outputName,
                            UniformHandle* colorUniform);