Revert of Move SkGLContext and some GrGLInterface implementations to skgputest module

src/gpu/GrTest.h

Index: src/gpu/GrTest.h
diff --git a/src/gpu/GrTest.h b/src/gpu/GrTest.h
new file mode 100644
index 0000000000000000000000000000000000000000..53aaac34e48afc5920d7f16d3a72e9cce182eb78
--- /dev/null
+++ b/src/gpu/GrTest.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrTest_DEFINED
+#define GrTest_DEFINED
+
+#include "GrContext.h"
+#include "GrDrawTarget.h"
+#include "gl/GrGLContext.h"
+
+namespace GrTest {
+    /**
+     * Forces the GrContext to use a small atlas which only has room for one plot and will thus
+     * constantly be evicting entries
+     */
+    void SetupAlwaysEvictAtlas(GrContext*);
+};
+
+/** TODO Please do not use this if you can avoid it.  We are in the process of deleting it.
+    Allows a test to temporarily draw to a GrDrawTarget owned by a GrContext. Tests that use this
+    should be careful not to mix using the GrDrawTarget directly and drawing via SkCanvas or
+    GrContext. In the future this object may provide some guards to prevent this. */
+class GrTestTarget {
+public:
+    GrTestTarget() {};
+
+    void init(GrContext*, GrDrawTarget*, GrRenderTarget*);
+
+    GrDrawTarget* target() { return fDrawTarget.get(); }
+    GrResourceProvider* resourceProvider() { return fContext->resourceProvider(); }
+
+private:
+    SkAutoTUnref<GrContext>                 fContext;
+    SkAutoTUnref<GrDrawTarget>              fDrawTarget;
+    SkAutoTUnref<GrRenderTarget>            fRenderTarget;
+};
+
+#endif