[GeometryInterface] Add rotate*(), rotateFromVector*() function.

third_party/WebKit/Source/core/dom/DOMMatrix.h

 // Copyright 2014 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 DOMMatrix_h
 #define DOMMatrix_h
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/dom/DOMMatrixInit.h"
 #include "core/dom/DOMMatrixReadOnly.h"
@@ skipping 74 matching lines @@
   DOMMatrix* scaleSelf(double sx,
                        double sy,
                        double sz = 1,
                        double ox = 0,
                        double oy = 0,
                        double oz = 0);
   DOMMatrix* scale3dSelf(double scale,
                          double ox = 0,
                          double oy = 0,
                          double oz = 0);
+  DOMMatrix* rotateSelf(double rotX);
+  DOMMatrix* rotateSelf(double rotX, double rotY);
+  DOMMatrix* rotateSelf(double rotX, double rotY, double rotZ);

[meade_UTC10, 2016/10/24 05:37:11]

Can these use default arguments like the nearby functions?

e.g DOMMatrix* rotateSelf(double rotX, double rotY = 0, double rotZ = 0);

[Hwanseung Lee, 2016/10/24 14:33:43]

i don't think so.
rotate(x, 0, 0) is not same with rotate(x).
because, "If rotY and rotZ are both missing, set rotZ to the value of rotX and
set rotX and rotY to zero."
It is stated in the specifications.
how about think about it?

[meade_UTC10, 2016/10/25 02:33:04]

Ah, I see. Thanks for the clarification!

+  DOMMatrix* rotateFromVectorSelf(double x, double y);
   DOMMatrix* rotateAxisAngleSelf(double x = 0,
                                  double y = 0,
                                  double z = 0,
                                  double angle = 0);
   DOMMatrix* skewXSelf(double sx = 0);
   DOMMatrix* skewYSelf(double sy = 0);
   DOMMatrix* invertSelf();
 
  private:
   DOMMatrix(const TransformationMatrix&, bool is2D = true);
   template <typename T>
   DOMMatrix(T sequence, int size);
 
   void setIs2D(bool value);
   void setNAN();
 };
 
 }  // namespace blink
 
 #endif