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

tests/TestTest.cpp

Index: tests/TestTest.cpp
diff --git a/tests/TestTest.cpp b/tests/TestTest.cpp
index d72e02d5c1a754f1ec3f4bb517925d3c00df2f85..05ab9ff69719785ae4ea0663784dda3b08c37dda 100644
--- a/tests/TestTest.cpp
+++ b/tests/TestTest.cpp
@@ -9,7 +9,7 @@
 
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
-#include "gl/GLTestContext.h"
+#include "gl/GLContext.h"
 #endif
 
 
@@ -64,7 +64,7 @@
 #endif
 
 // This is an example of a GPU test that tests a property that should work for all GPU contexts.
-// It uses the additional GLTestContext* glContext to implement the test.
+// It uses the additional GLContext* glContext to implement the test.
 #if SK_SUPPORT_GPU
 DEF_GPUTEST_FOR_ALL_CONTEXTS(TestGpuGrContextAndGLContext, reporter, context, glContext) {
     REPORTER_ASSERT(reporter, reporter);