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/SpecialImageTest.cpp b/tests/SpecialImageTest.cpp
index f517447..06c852d 100644
--- a/tests/SpecialImageTest.cpp
+++ b/tests/SpecialImageTest.cpp
@@ -210,7 +210,7 @@
 
 // Test out the SkSpecialImage::makeTextureImage entry point
 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_MakeTexture, reporter, ctxInfo) {
-    GrContext* context = ctxInfo.fGrContext;
+    GrContext* context = ctxInfo.grContext();
     SkBitmap bm = create_bm();
 
     const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
@@ -272,7 +272,7 @@
 }
 
 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_Gpu, reporter, ctxInfo) {
-    GrContext* context = ctxInfo.fGrContext;
+    GrContext* context = ctxInfo.grContext();
     SkBitmap bm = create_bm();
 
     GrSurfaceDesc desc;