add fn resetTransform to externs.
@@ -489,6 +489,11 @@ BaseRenderingContext2D.prototype.transform = function(
BaseRenderingContext2D.prototype.setTransform = function(
m11, m12, m21, m22, dx, dy) {};
+/**
+ * @return {undefined}
+ */
+BaseRenderingContext2D.prototype.resetTransform = function() {};
+
/**
* @return {!DOMMatrixReadOnly}
*/
