Make GrGLSLPrimitiveProcessor::emitTransforms take local coords as GrShaderVar.

Also remove unused position variable parameter.

Change-Id: I37f98a03ac1ca750810de13b08e3ffa11e41828c
Reviewed-on: https://skia-review.googlesource.com/81320
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrDefaultGeoProcFactory.cpp b/src/gpu/GrDefaultGeoProcFactory.cpp
index 70f64ab..5675876 100644
--- a/src/gpu/GrDefaultGeoProcFactory.cpp
+++ b/src/gpu/GrDefaultGeoProcFactory.cpp
@@ -144,8 +144,7 @@
                 this->emitTransforms(vertBuilder,
                                      varyingHandler,
                                      uniformHandler,
-                                     gpArgs->fPositionVar,
-                                     gp.inLocalCoords()->fName,
+                                     gp.inLocalCoords()->asShaderVar(),
                                      gp.localMatrix(),
                                      args.fFPCoordTransformHandler);
             } else {
@@ -153,8 +152,7 @@
                 this->emitTransforms(vertBuilder,
                                      varyingHandler,
                                      uniformHandler,
-                                     gpArgs->fPositionVar,
-                                     gp.inPosition()->fName,
+                                     gp.inPosition()->asShaderVar(),
                                      gp.localMatrix(),
                                      args.fFPCoordTransformHandler);
             }