One signature for creating unit tests that run on premade GrContexts

tests/RecordReplaceDrawTest.cpp

Index: tests/RecordReplaceDrawTest.cpp
diff --git a/tests/RecordReplaceDrawTest.cpp b/tests/RecordReplaceDrawTest.cpp
index fe11106a65bb2c46da5718e0056dae46f90761f7..5506551d6ba91a7c5956e0c4020b1e4121b68f5b 100644
--- a/tests/RecordReplaceDrawTest.cpp
+++ b/tests/RecordReplaceDrawTest.cpp
@@ -141,9 +141,9 @@ void test_replacements(skiatest::Reporter* r, GrContext* context, bool doReplace
     }
 }
 
-DEF_GPUTEST_FOR_RENDERING_CONTEXTS(RecordReplaceDraw, r, context) {
-    test_replacements(r, context, false);
-    test_replacements(r, context, true);
+DEF_GPUTEST_FOR_RENDERING_CONTEXTS(RecordReplaceDraw, r, ctxInfo) {
+    test_replacements(r, ctxInfo.fGrContext, true);
+    test_replacements(r, ctxInfo.fGrContext, false);
 }
 
 #endif