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

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

Index: third_party/WebKit/Source/core/dom/DOMMatrix.idl
diff --git a/third_party/WebKit/Source/core/dom/DOMMatrix.idl b/third_party/WebKit/Source/core/dom/DOMMatrix.idl
index 37465d2422a0f1a457006cae25a556be4f340d13..51d43c6413daa3ea7bcd807ac0d32cb2c209837a 100644
--- a/third_party/WebKit/Source/core/dom/DOMMatrix.idl
+++ b/third_party/WebKit/Source/core/dom/DOMMatrix.idl
@@ -63,6 +63,11 @@
                           optional unrestricted double originX = 0,
                           optional unrestricted double originY = 0,
                           optional unrestricted double originZ = 0);
+    DOMMatrix rotateSelf(optional unrestricted double rotX = 0,
+                          optional unrestricted double rotY,
+                          optional unrestricted double rotZ);

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

Could these have default arguments too?

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

no. rotY and rotZ does not have a default parameter.
refer to https://drafts.fxtf.org/geometry/#ref-for-dom-dommatrix-rotateself-1.

+    DOMMatrix rotateFromVectorSelf(optional unrestricted double x = 0,
+                                  optional unrestricted double y = 0);
     DOMMatrix rotateAxisAngleSelf(optional unrestricted double x = 0,
                                   optional unrestricted double y = 0,
                                   optional unrestricted double z = 0,