Rename non-aa rect methods on GrDrawContext in anticipation of making them support aa

R=joshualitt@google.com

Review URL: https://codereview.chromium.org/1409753008
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index 5b9141f..9421087 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -477,7 +477,7 @@
                                                                radius,
                                                                morphType,
                                                                bounds))->unref();
-    drawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), SkRect::Make(dstRect),
+    drawContext->fillRectToRect(clip, paint, SkMatrix::I(), SkRect::Make(dstRect),
                                      SkRect::Make(srcRect));
 }
 
@@ -494,8 +494,8 @@
                                                                direction,
                                                                radius,
                                                                morphType))->unref();
-    drawContext->drawNonAARectToRect(clip, paint, SkMatrix::I(), SkRect::Make(dstRect),
-                                     SkRect::Make(srcRect));
+    drawContext->fillRectToRect(clip, paint, SkMatrix::I(), SkRect::Make(dstRect),
+                                SkRect::Make(srcRect));
 }
 
 void apply_morphology_pass(GrDrawContext* drawContext,