Add two pixel-based compositor unittests.

ui/gfx/compositor/test/test_layer_animation_delegate.h

Index: ui/gfx/compositor/test/test_layer_animation_delegate.h
diff --git a/ui/gfx/compositor/test_layer_animation_delegate.h b/ui/gfx/compositor/test/test_layer_animation_delegate.h
similarity index 86%
rename from ui/gfx/compositor/test_layer_animation_delegate.h
rename to ui/gfx/compositor/test/test_layer_animation_delegate.h
index 24df27276b41f78e56fea69ba4dd519380e3181d..f2c2eae74e897894585003bbd08a86b2fb69f31b 100644
--- a/ui/gfx/compositor/test_layer_animation_delegate.h
+++ b/ui/gfx/compositor/test/test_layer_animation_delegate.h
@@ -2,8 +2,8 @@
 // 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_LAYER_ANIMATION_DELEGATE_H_
-#define UI_GFX_COMPOSITOR_TEST_LAYER_ANIMATION_DELEGATE_H_
+#ifndef UI_GFX_COMPOSITOR_TEST_TEST_LAYER_ANIMATION_DELEGATE_H_
+#define UI_GFX_COMPOSITOR_TEST_TEST_LAYER_ANIMATION_DELEGATE_H_
 #pragma once
 
 #include "base/compiler_specific.h"
@@ -40,4 +40,4 @@ class TestLayerAnimationDelegate : public LayerAnimationDelegate {
 
 }  // namespace ui
 
-#endif  // UI_GFX_COMPOSITOR_TEST_LAYER_ANIMATION_DELEGATE_H_
+#endif  // UI_GFX_COMPOSITOR_TEST_TEST_LAYER_ANIMATION_DELEGATE_H_