Minor geometry processor clarification.

Some renames, comments, and override->final

Change-Id: Iebc7aeee9a64021e958f76bf4278ffff56884a56
Reviewed-on: https://skia-review.googlesource.com/35165
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrDefaultGeoProcFactory.cpp b/src/gpu/GrDefaultGeoProcFactory.cpp
index c94c47a..659d333 100644
--- a/src/gpu/GrDefaultGeoProcFactory.cpp
+++ b/src/gpu/GrDefaultGeoProcFactory.cpp
@@ -132,12 +132,12 @@
             }
 
             // Setup position
-            this->setupPosition(vertBuilder,
-                                uniformHandler,
-                                gpArgs,
-                                gp.inPosition()->fName,
-                                gp.viewMatrix(),
-                                &fViewMatrixUniform);
+            this->writeOutputPosition(vertBuilder,
+                                      uniformHandler,
+                                      gpArgs,
+                                      gp.inPosition()->fName,
+                                      gp.viewMatrix(),
+                                      &fViewMatrixUniform);
 
             if (gp.hasExplicitLocalCoords()) {
                 // emit transforms with explicit local coords