Turn ContextInfos returned by GrContextFactory into structs.

tests/CopySurfaceTest.cpp

Index: tests/CopySurfaceTest.cpp
diff --git a/tests/CopySurfaceTest.cpp b/tests/CopySurfaceTest.cpp
index af58bf9e5c73acef25ea52910aa92346bca1aa82..540d013c60dc2d34ffbdc698e1366c11e1845fef 100644
--- a/tests/CopySurfaceTest.cpp
+++ b/tests/CopySurfaceTest.cpp
@@ -16,7 +16,7 @@
 #include "SkUtils.h"
 
 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CopySurface, reporter, ctxInfo) {
-    GrContext* context = ctxInfo.fGrContext;
+    GrContext* context = ctxInfo.grContext();
     static const int kW = 10;
     static const int kH = 10;
     static const size_t kRowBytes = sizeof(uint32_t) * kW;