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

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

Index: third_party/WebKit/Source/core/dom/DOMMatrix.h
diff --git a/third_party/WebKit/Source/core/dom/DOMMatrix.h b/third_party/WebKit/Source/core/dom/DOMMatrix.h
index 05083927f89d4f1a0ed0ac435e25e15084d41a4e..0fa7382af44fc24c3fc39eb7342ca6891f60cd8d 100644
--- a/third_party/WebKit/Source/core/dom/DOMMatrix.h
+++ b/third_party/WebKit/Source/core/dom/DOMMatrix.h
@@ -92,6 +92,10 @@ class CORE_EXPORT DOMMatrix : public DOMMatrixReadOnly {
                          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,