Revert "Delete CC."

cc/test/geometry_test_utils.h

+// Copyright 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 CC_TEST_GEOMETRY_TEST_UTILS_H_
+#define CC_TEST_GEOMETRY_TEST_UTILS_H_
+
+namespace gfx {
+class Transform;
+}
+
+namespace cc {
+
+// These are macros instead of functions so that we get useful line numbers
+// where a test failed.
+#define EXPECT_FLOAT_RECT_EQ(expected, actual) \
+do { \
+  EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
+  EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
+  EXPECT_FLOAT_EQ((expected).width(), (actual).width()); \
+  EXPECT_FLOAT_EQ((expected).height(), (actual).height()); \
+} while (false)
+
+#define EXPECT_RECT_NEAR(expected, actual, abs_error) \
+do { \
+  EXPECT_NEAR((expected).x(), (actual).x(), (abs_error)); \
+  EXPECT_NEAR((expected).y(), (actual).y(), (abs_error)); \
+  EXPECT_NEAR((expected).width(), (actual).width(), (abs_error)); \
+  EXPECT_NEAR((expected).height(), (actual).height(), (abs_error)); \
+} while (false)
+
+#define EXPECT_POINT3F_EQ(expected, actual)      \
+do {                                             \
+  EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
+  EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
+  EXPECT_FLOAT_EQ((expected).z(), (actual).z()); \
+} while (false)
+
+#define EXPECT_VECTOR_EQ(expected, actual) \
+do { \
+  EXPECT_EQ((expected).x(), (actual).x()); \
+  EXPECT_EQ((expected).y(), (actual).y()); \
+} while (false)
+
+#define EXPECT_VECTOR2DF_EQ(expected, actual) \
+do { \
+  EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
+  EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
+} while (false)
+
+#define EXPECT_VECTOR2DF_NEAR(expected, actual, abs_error)  \
+  do {                                                      \
+    EXPECT_NEAR((expected).x(), (actual).x(), (abs_error)); \
+    EXPECT_NEAR((expected).y(), (actual).y(), (abs_error)); \
+  } while (false)
+
+#define EXPECT_FLOAT_ARRAY_EQ(expected, actual, count) \
+do { \
+  for (int i = 0; i < count; i++) { \
+    EXPECT_FLOAT_EQ((expected)[i], (actual)[i]); \
+  } \
+} while (false)
+
+// This is a function rather than a macro because when this is included as a
+// macro in bulk, it causes a significant slow-down in compilation time. This
+// problem exists with both gcc and clang, and bugs have been filed at
+// http://llvm.org/bugs/show_bug.cgi?id=13651
+// and http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54337
+void ExpectTransformationMatrixEq(const gfx::Transform& expected,
+                                  const gfx::Transform& actual);
+
+#define EXPECT_TRANSFORMATION_MATRIX_EQ(expected, actual) \
+  do {                                                    \
+    SCOPED_TRACE("");                                     \
+    ExpectTransformationMatrixEq(expected, actual);       \
+  } while (false)
+
+// Should be used in test code only, for convenience. Production code should use
+// the gfx::Transform::GetInverse() API.
+gfx::Transform Inverse(const gfx::Transform& transform);
+
+}  // namespace cc
+
+#endif  // CC_TEST_GEOMETRY_TEST_UTILS_H_