GeometryInterace: Add rotate methods.

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

 // 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.
 
 // http://dev.w3.org/fxtf/geometry/#DOMMatrix
 
 [
     Constructor(sequence<unrestricted double> numberSequence),
     RaisesException=Constructor,
     // FIXME: Exposed=(Window,Worker)
@@ skipping 38 matching lines @@
     DOMMatrix scale3d(unrestricted double scale,
                       optional unrestricted double originX = 0,
                       optional unrestricted double originY = 0,
                       optional unrestricted double originZ = 0);
     DOMMatrix scaleNonUniform(unrestricted double scaleX,
                               optional unrestricted double scaleY = 1,
                               optional unrestricted double scaleZn = 1,
                               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();
 
     Float32Array toFloat32Array();
     Float64Array toFloat64Array();
 };