Bug 1357590 - Add default button to pointer_up and pointer_down; r=ato

MozReview-Commit-ID: Ll7O3peSrme

testing/web-platform/tests/tools/webdriver/webdriver/client.py

@@ -147,18 +147,20 @@ class ActionSequence(object):
         self._actions.append(action)
         return self
 
-    def pointer_up(self, button):
+    def pointer_up(self, button=0):
         """Queue a pointerUp action for `button`.
 
         :param button: Pointer button to perform action with.
+                       Default: 0, which represents main device button.
         """
         self._pointer_action("pointerUp", button)
         return self
 
-    def pointer_down(self, button):
+    def pointer_down(self, button=0):
         """Queue a pointerDown action for `button`.
 
         :param button: Pointer button to perform action with.
+                       Default: 0, which represents main device button.
         """
         self._pointer_action("pointerDown", button)
         return self