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/effects/GrBezierEffect.cpp b/src/gpu/effects/GrBezierEffect.cpp
index ffd7b06..5bc04c8 100644
--- a/src/gpu/effects/GrBezierEffect.cpp
+++ b/src/gpu/effects/GrBezierEffect.cpp
@@ -97,8 +97,7 @@
     this->emitTransforms(vertBuilder,
                          varyingHandler,
                          uniformHandler,
-                         gpArgs->fPositionVar,
-                         gp.inPosition()->fName,
+                         gp.inPosition()->asShaderVar(),
                          gp.localMatrix(),
                          args.fFPCoordTransformHandler);
 
@@ -350,8 +349,7 @@
     this->emitTransforms(vertBuilder,
                          varyingHandler,
                          uniformHandler,
-                         gpArgs->fPositionVar,
-                         gp.inPosition()->fName,
+                         gp.inPosition()->asShaderVar(),
                          gp.localMatrix(),
                          args.fFPCoordTransformHandler);
 
@@ -578,11 +576,9 @@
     this->emitTransforms(vertBuilder,
                          varyingHandler,
                          uniformHandler,
-                         gpArgs->fPositionVar,
-                         gp.inPosition()->fName,
+                         gp.inPosition()->asShaderVar(),
                          args.fFPCoordTransformHandler);
 
-
     GrShaderVar edgeAlpha("edgeAlpha", kFloat_GrSLType, 0);
     GrShaderVar gF("gF", kFloat2_GrSLType, 0);
     GrShaderVar func("func", kFloat_GrSLType, 0);