Move uses of functions taking SkColorType to GrColorType versions in GrCaps.

Change-Id: I4feda6277cf14be0d32a8ce22257902483d7ae1a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/225734
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/ops/GrLatticeOp.cpp b/src/gpu/ops/GrLatticeOp.cpp
index 96c9a72..432f01c 100644
--- a/src/gpu/ops/GrLatticeOp.cpp
+++ b/src/gpu/ops/GrLatticeOp.cpp
@@ -407,7 +407,7 @@
     GrSurfaceOrigin origin =
             random->nextBool() ? kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
     const GrBackendFormat format =
-            context->priv().caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType);
+            context->priv().caps()->getBackendFormatFromColorType(GrColorType::kRGBA_8888);
     auto proxy = context->priv().proxyProvider()->createProxy(
             format, desc, origin, SkBackingFit::kExact, SkBudgeted::kYes);