Migrate most of cc/ from WebKit::WebTransformationMatrix to gfx::Transform

cc/test/geometry_test_utils.cc

 // Copyright 2012 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 "cc/test/geometry_test_utils.h"
 
-#include "testing/gtest/include/gtest/gtest.h"
 #include <public/WebTransformationMatrix.h>
 
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/transform.h"
+
 namespace WebKitTests {
 
+// NOTE: even though transform data types use double precision, we only check
+// for equality within single-precision error bounds because many transforms
+// originate from single-precision data types such as quads/rects/etc.
+
 void ExpectTransformationMatrixEq(const WebKit::WebTransformationMatrix& expected,
                                   const WebKit::WebTransformationMatrix& actual)
 {
     EXPECT_FLOAT_EQ((expected).m11(), (actual).m11());
     EXPECT_FLOAT_EQ((expected).m12(), (actual).m12());
     EXPECT_FLOAT_EQ((expected).m13(), (actual).m13());
     EXPECT_FLOAT_EQ((expected).m14(), (actual).m14());
     EXPECT_FLOAT_EQ((expected).m21(), (actual).m21());
     EXPECT_FLOAT_EQ((expected).m22(), (actual).m22());
     EXPECT_FLOAT_EQ((expected).m23(), (actual).m23());
     EXPECT_FLOAT_EQ((expected).m24(), (actual).m24());
     EXPECT_FLOAT_EQ((expected).m31(), (actual).m31());
     EXPECT_FLOAT_EQ((expected).m32(), (actual).m32());
     EXPECT_FLOAT_EQ((expected).m33(), (actual).m33());
     EXPECT_FLOAT_EQ((expected).m34(), (actual).m34());
     EXPECT_FLOAT_EQ((expected).m41(), (actual).m41());
     EXPECT_FLOAT_EQ((expected).m42(), (actual).m42());
     EXPECT_FLOAT_EQ((expected).m43(), (actual).m43());
     EXPECT_FLOAT_EQ((expected).m44(), (actual).m44());
 }
 
+void ExpectTransformationMatrixEq(const gfx::Transform& expected,
+                                  const gfx::Transform& actual)
+{
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(0, 0), (actual).matrix().getDouble(0, 0));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(1, 0), (actual).matrix().getDouble(1, 0));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(2, 0), (actual).matrix().getDouble(2, 0));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(3, 0), (actual).matrix().getDouble(3, 0));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(0, 1), (actual).matrix().getDouble(0, 1));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(1, 1), (actual).matrix().getDouble(1, 1));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(2, 1), (actual).matrix().getDouble(2, 1));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(3, 1), (actual).matrix().getDouble(3, 1));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(0, 2), (actual).matrix().getDouble(0, 2));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(1, 2), (actual).matrix().getDouble(1, 2));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(2, 2), (actual).matrix().getDouble(2, 2));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(3, 2), (actual).matrix().getDouble(3, 2));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(0, 3), (actual).matrix().getDouble(0, 3));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(1, 3), (actual).matrix().getDouble(1, 3));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(2, 3), (actual).matrix().getDouble(2, 3));
+    EXPECT_FLOAT_EQ((expected).matrix().getDouble(3, 3), (actual).matrix().getDouble(3, 3));
+}
+
 } // namespace WebKitTests