Explicit animation support

ui/gfx/compositor/test_utils.cc

+// 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.
+
+#include "ui/gfx/compositor/test_utils.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/transform.h"
+
+namespace ui {
+
+void CheckApproximatelyEqual(const Transform& lhs, const Transform& rhs) {
+  for (int i = 0; i < 4; ++i) {
+    for (int j = 0; j < 4; ++j) {
+      EXPECT_FLOAT_EQ(lhs.matrix().get(i, j), rhs.matrix().get(i, j));
+    }
+  }
+}
+
+void CheckApproximatelyEqual(const gfx::Rect& lhs, const gfx::Rect& rhs) {
+  EXPECT_FLOAT_EQ(lhs.x(), rhs.x());
+  EXPECT_FLOAT_EQ(lhs.y(), rhs.y());
+  EXPECT_FLOAT_EQ(lhs.width(), rhs.width());
+  EXPECT_FLOAT_EQ(lhs.height(), rhs.height());
+}
+
+}  // namespace ui