rename sk_gpu_test::GLContext to sk_gpu_test::GLTestContext

rename subclasses

Fix up the EGL native GLTestContext
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1849463002

TBR=jvanverth@google.com

Committed: https://skia.googlesource.com/skia/+/4c7f0a16312c374eba4e8d5d46435ce9eb0b9971

Review URL: https://codereview.chromium.org/1849463002
diff --git a/tests/RectangleTextureTest.cpp b/tests/RectangleTextureTest.cpp
index fc9e65e..782a3b5 100644
--- a/tests/RectangleTextureTest.cpp
+++ b/tests/RectangleTextureTest.cpp
@@ -11,7 +11,7 @@
 #include "GrDrawContext.h"
 #include "gl/GrGLGpu.h"
 #include "gl/GrGLUtil.h"
-#include "gl/GLContext.h"
+#include "gl/GLTestContext.h"
 
 static void test_read_pixels(skiatest::Reporter* reporter, GrContext* context,
                              GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) {