Add two pixel-based compositor unittests.

ui/gfx/compositor/test/test_texture.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_GFX_COMPOSITOR_TEST_TEXTURE_H_
-#define UI_GFX_COMPOSITOR_TEST_TEXTURE_H_
+#ifndef UI_GFX_COMPOSITOR_TEST_TEST_TEXTURE_H_
+#define UI_GFX_COMPOSITOR_TEST_TEST_TEXTURE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/gfx/compositor/compositor.h"
 #include "ui/gfx/rect.h"
 
 namespace ui {
 
 // Texture implementation that TextCompositor creates. Doesn't actually draw
@@ skipping 23 matching lines @@
   // Number of live instances.
   static int live_count_;
 
   gfx::Rect bounds_of_last_paint_;
 
   DISALLOW_COPY_AND_ASSIGN(TestTexture);
 };
 
 }  // namespace ui
 
-#endif  // UI_GFX_COMPOSITOR_TEST_TEXTURE_H_
+#endif  // UI_GFX_COMPOSITOR_TEST_TEST_TEXTURE_H_