Revert of rename sk_gpu_test::GLContext to sk_gpu_test::GLTestContext

tests/Test.h

Index: tests/Test.h
diff --git a/tests/Test.h b/tests/Test.h
index 7660c44d0d56a8c4ed33498ea7180cd27a82f155..119976f3eeb359399e2574d725aeae9ebe1317ca 100644
--- a/tests/Test.h
+++ b/tests/Test.h
@@ -13,7 +13,7 @@
 
 namespace sk_gpu_test {
 class GrContextFactory;
-class GLTestContext;
+class GLContext;
 }  // namespace sk_gpu_test
 class GrContext;
 
@@ -146,7 +146,7 @@
 #define GPUTEST_SELECT(a1, a2, N, ...) N
 
 #define GPUTEST_CONTEXT_ARGS1(a1) GrContext* a1
-#define GPUTEST_CONTEXT_ARGS2(a1, a2) GrContext* a1, sk_gpu_test::GLTestContext* a2
+#define GPUTEST_CONTEXT_ARGS2(a1, a2) GrContext* a1, sk_gpu_test::GLContext* a2
 #define GPUTEST_CONTEXT_ARGS(...)                                                            \
     GPUTEST_APPLY(GPUTEST_SELECT(__VA_ARGS__, GPUTEST_CONTEXT_ARGS2, GPUTEST_CONTEXT_ARGS1), \
                   __VA_ARGS__)