Revert of Move SkGLContext and some GrGLInterface implementations to skgputest module

src/gpu/gl/debug/SkDebugGLContext.cpp

Index: src/gpu/gl/debug/SkDebugGLContext.cpp
diff --git a/src/gpu/gl/debug/SkDebugGLContext.cpp b/src/gpu/gl/debug/SkDebugGLContext.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ecb27db95d62191c1ce40a2db2fc20458bd30f91
--- /dev/null
+++ b/src/gpu/gl/debug/SkDebugGLContext.cpp
@@ -0,0 +1,16 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "gl/debug/SkDebugGLContext.h"
+
+SkDebugGLContext::SkDebugGLContext() {
+    this->init(GrGLCreateDebugInterface());
+}
+
+SkDebugGLContext::~SkDebugGLContext() {
+    this->teardown();
+}