SK_SUPPORT_LEGACY_DRAWFLTER typo

s/FLTER/FILTER/

R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1634573002

Review URL: https://codereview.chromium.org/1634573002
diff --git a/src/utils/SkNWayCanvas.cpp b/src/utils/SkNWayCanvas.cpp
index 23e9b11..e3b1e01 100644
--- a/src/utils/SkNWayCanvas.cpp
+++ b/src/utils/SkNWayCanvas.cpp
@@ -292,7 +292,7 @@
     }
 }
 
-#ifdef SK_SUPPORT_LEGACY_DRAWFLTER
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
 SkDrawFilter* SkNWayCanvas::setDrawFilter(SkDrawFilter* filter) {
     Iter iter(fList);
     while (iter.next()) {