Patch to create a distinct geometry processor.  The vast majority of this patch
is just a rename.  The meat is in GrGeometryProcessor, GrProcessor,
GrGL*Processor, GrProcessorStage, Gr*BackendProcessorFactory,
GrProcessUnitTestFactory, and the builders

BUG=skia:
R=bsalomon@google.com

Author: joshualitt@chromium.org

Review URL: https://codereview.chromium.org/582963002
diff --git a/include/gpu/SkGr.h b/include/gpu/SkGr.h
index cd5fabf..df2ae5a 100644
--- a/include/gpu/SkGr.h
+++ b/include/gpu/SkGr.h
@@ -86,7 +86,7 @@
                              bool constantColor, GrPaint* grPaint);
 
 // This function is similar to skPaint2GrPaintNoShader but also converts
-// skPaint's shader to a GrTexture/GrEffectStage if possible.
+// skPaint's shader to a GrTexture/GrProcessorStage if possible.
 // constantColor has the same meaning as in skPaint2GrPaintNoShader.
 void SkPaint2GrPaintShader(GrContext* context, const SkPaint& skPaint,
                            bool constantColor, GrPaint* grPaint);