Update existing TestCreate methods to honor the inputFP in the TestData.

This can be leveraged to build chains of test FPs in a controlled way.
At present, `inputFP` it is never set to anything other than null; as
such, all calls to TestCreate continue to set a null inputFP
(exactly as they do already).

Change-Id: I0d74f37a076ca338e44ff734816299beb1667c26
Bug: skia:10384
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/302668
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
diff --git a/src/gpu/effects/generated/GrRectBlurEffect.cpp b/src/gpu/effects/generated/GrRectBlurEffect.cpp
index a98e277..9cbc104 100644
--- a/src/gpu/effects/generated/GrRectBlurEffect.cpp
+++ b/src/gpu/effects/generated/GrRectBlurEffect.cpp
@@ -157,7 +157,7 @@
     float sigma = data->fRandom->nextRangeF(3, 8);
     float width = data->fRandom->nextRangeF(200, 300);
     float height = data->fRandom->nextRangeF(200, 300);
-    return GrRectBlurEffect::Make(/*inputFP=*/nullptr, data->context(), *data->caps()->shaderCaps(),
+    return GrRectBlurEffect::Make(data->inputFP(), data->context(), *data->caps()->shaderCaps(),
                                   SkRect::MakeWH(width, height), sigma);
 }
 #endif