gfx::Transform API clean-up

cc/math_util.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/math_util.h"
 
 #include <cmath>
 #include <limits>
 
 #include "ui/gfx/quad_f.h"
@@ skipping 443 matching lines @@
     MathUtil::rotateAxisAngle(&rotationAboutX, 1, 0, 0, eulerX);
     MathUtil::rotateAxisAngle(&rotationAboutY, 0, 1, 0, eulerY);
     MathUtil::rotateAxisAngle(&rotationAboutZ, 0, 0, 1, eulerZ);
 
     gfx::Transform composite = rotationAboutZ * rotationAboutY * rotationAboutX;
     transform->PreconcatTransform(composite);
 }
 
 void MathUtil::rotateAxisAngle(gfx::Transform* transform, double i, double j, double k, double degrees)
 {
-    // TODO (shawnsingh): fix gfx::Transform API to receive vector instead of
-    // point for the axis.
-    gfx::Point3F axis(i, j, k);
-    transform->PreconcatRotateAbout(axis, degrees);
+    gfx::Vector3dF axis(i, j, k);
+    transform->RotateAbout(axis, degrees);
 }
 
 gfx::Transform MathUtil::inverse(const gfx::Transform& transform)
 {
     gfx::Transform result;
     bool invertedSuccessfully = transform.GetInverse(&result);
 
     if (invertedSuccessfully)
         return result;
 
@@ skipping 60 matching lines @@
     matrix.setDouble(0, 0, a);
     matrix.setDouble(1, 0, b);
     matrix.setDouble(0, 1, c);
     matrix.setDouble(1, 1, d);
     matrix.setDouble(0, 3, e);
     matrix.setDouble(1, 3, f);
 
     return result;
 }
 
-gfx::Transform operator*(const gfx::Transform& A, const gfx::Transform& B)
-{
-    // Compute A * B.
-    gfx::Transform result = A;
-    result.PreconcatTransform(B);
-    return result;
-}
-
 }  // namespace cc