Implement unit tests and temporary MathUtil wrappers for transform functionality

webkit/compositor_bindings/web_transformation_matrix_unittest.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.
 
 #define _USE_MATH_DEFINES
 #include <math.h>
 
 #include "cc/test/geometry_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebTransformationMatrix.h"
@@ skipping 13 matching lines @@
 #define EXPECT_ROW3_EQ(a, b, c, d, matrix)      \
     EXPECT_FLOAT_EQ((a), (matrix).m13());       \
     EXPECT_FLOAT_EQ((b), (matrix).m23());       \
     EXPECT_FLOAT_EQ((c), (matrix).m33());       \
     EXPECT_FLOAT_EQ((d), (matrix).m43());
 
 #define EXPECT_ROW4_EQ(a, b, c, d, matrix)      \
     EXPECT_FLOAT_EQ((a), (matrix).m14());       \
     EXPECT_FLOAT_EQ((b), (matrix).m24());       \
     EXPECT_FLOAT_EQ((c), (matrix).m34());       \
-    EXPECT_FLOAT_EQ((d), (matrix).m44());       \
+    EXPECT_FLOAT_EQ((d), (matrix).m44());
 
 // Checking float values for equality close to zero is not robust using EXPECT_FLOAT_EQ
 // (see gtest documentation). So, to verify rotation matrices, we must use a looser
 // absolute error threshold in some places.
 #define EXPECT_ROW1_NEAR(a, b, c, d, matrix, errorThreshold)      \
     EXPECT_NEAR((a), (matrix).m11(), (errorThreshold));           \
     EXPECT_NEAR((b), (matrix).m21(), (errorThreshold));           \
     EXPECT_NEAR((c), (matrix).m31(), (errorThreshold));           \
     EXPECT_NEAR((d), (matrix).m41(), (errorThreshold));
 
@@ skipping 580 matching lines @@
                      0.3333333333333334258519187,
                      -0.2440169358562924717404030,
                      0, A, ERROR_THRESHOLD);
     EXPECT_ROW3_NEAR(-0.2440169358562924717404030,
                      0.9106836025229592124219380,
                      0.3333333333333334258519187,
                      0, A, ERROR_THRESHOLD);
     EXPECT_ROW4_EQ(0, 0, 0, 1, A);
 }
 
-// Test failing as of webkit 132872:132896. http://crbug.com/158553
 TEST(WebTransformationMatrixTest, verifyRotateAxisAngle3dForDegenerateAxis)
 {
     // Check rotation about a degenerate zero vector.
     // It is expected to skip applying the rotation.
     WebTransformationMatrix A;
 
     A.rotate3d(0, 0, 0, 45);
     // Verify that A remains unchanged.
     EXPECT_TRUE(A.isIdentity());
 
@@ skipping 658 matching lines @@
     normalizationMatrix.setM11(1 / expectedEndOfAnimation.m44());
     normalizationMatrix.setM22(1 / expectedEndOfAnimation.m44());
     normalizationMatrix.setM33(1 / expectedEndOfAnimation.m44());
     normalizationMatrix.setM44(1 / expectedEndOfAnimation.m44());
     normalizedExpectedEndOfAnimation.multiply(normalizationMatrix);
 
     EXPECT_TRANSFORMATION_MATRIX_EQ(normalizedExpectedEndOfAnimation, to);
 }
 
 } // namespace