New Tests (not sure if it will work on mochitest, and the test will possibly fail as dave is working on this patch)

# When there is a parent element with multiple child element, have a test to check that all mouse events fired inside the child element are suppressed and is captured by the parent element. (this may also include the scenario where there is an iframe in the parent element) - Being worked on by Diogogmt

# A Test to check that repeated move of the mouse to a certain direction that will exceed the screen size does not break the mouselock (this may conflict with file_movementXY.html and we may need to add more test cases) - Should be in file_movementXY.html