GeometryInterace: Add rotate methods.

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

Index: third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.idl
diff --git a/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.idl b/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.idl
index 5f72e8536aae60c1997b0a9e5931a7ccdc41fb6f..f37aa8267fca752369b6ce79a13dd9075667eb21 100644
--- a/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.idl
+++ b/third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.idl
@@ -56,6 +56,15 @@
                               optional unrestricted double originX = 0,
                               optional unrestricted double originY = 0,
                               optional unrestricted double originZ = 0);
+    DOMMatrix rotate(optional unrestricted double rotX = 0,
+                     optional unrestricted double rotY,
+                     optional unrestricted double rotZ);
+    DOMMatrix rotateFromVector(optional unrestricted double x = 0,
+                               optional unrestricted double y = 0);
+    DOMMatrix rotateAxisAngle(optional unrestricted double x = 0,
+                              optional unrestricted double y = 0,
+                              optional unrestricted double z = 0,
+                              optional unrestricted double angle = 0);
     DOMMatrix multiply(DOMMatrix other);
     DOMMatrix flipX();
     DOMMatrix flipY();