Turn ContextInfos returned by GrContextFactory into structs.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1966013002

Review-Url: https://codereview.chromium.org/1966013002
diff --git a/tests/SpecialSurfaceTest.cpp b/tests/SpecialSurfaceTest.cpp
index 3c351a5..4b81691 100644
--- a/tests/SpecialSurfaceTest.cpp
+++ b/tests/SpecialSurfaceTest.cpp
@@ -79,7 +79,7 @@
 #if SK_SUPPORT_GPU
 
 DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(SpecialSurface_Gpu1, reporter, ctxInfo) {
-    sk_sp<SkSpecialSurface> surf(SkSpecialSurface::MakeRenderTarget(ctxInfo.fGrContext,
+    sk_sp<SkSpecialSurface> surf(SkSpecialSurface::MakeRenderTarget(ctxInfo.grContext(),
                                                                     kSmallerSize, kSmallerSize,
                                                                     kSkia8888_GrPixelConfig));