Replace GrOverrideInputFragmentProcessor with a runtime FP

Change-Id: Ife4dcd5627851b2dac1ed05b38c551d5d258e39c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/419797
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/tests/SkRuntimeEffectTest.cpp b/tests/SkRuntimeEffectTest.cpp
index 278bbde..9c29383 100644
--- a/tests/SkRuntimeEffectTest.cpp
+++ b/tests/SkRuntimeEffectTest.cpp
@@ -831,7 +831,7 @@
         SkTArray<uint32_t, true>             key;
     };
 
-    // Constant color, but with a similar option to GrOverrideInputFragmentProcessor
+    // Constant color, but with a similar option to GrFragmentProcessor::OverrideInput
     // specialize decides if the color is inserted in the SkSL as a literal, or left as a uniform
     auto make_color_fp = [&](SkPMColor4f color, bool specialize) {
         auto effect = SkMakeRuntimeEffect(SkRuntimeEffect::MakeForShader, R"(