RFR: 8254841: [macos] Enter and Exit events shouldn't be sent whilst resizing [v8]

[Alisen Chung]

On Fri, 1 Oct 2021 22:37:05 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> > I think synthesizeMouseEnteredExitedEventsForAllWindows shouldn't be in deliverMoveResizeEvent since there shouldn't be any mouseEnter/Exit events during a resize or move
> 
> Why do you think that if the window is moved/resized and/or appeared under the mouse then the mouse event should not be posted? I do not think so. We can try to minimize the number of events when the user drags/resizes the window, but we should not change the number of events if the macos/app moved/resized the window.

I think mouseEvents are already posted by macos when the mouse enters the window thru fullscreen-resizing (green button) or tiling, so I think we don't need to synthesize additional events. I suggest we remove the line because it introduces another bug where dragging to move the window will post a mouseEntered event without the mouse ever entering the actual window. It also introduces the bug from the original bug report.

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PR: https://git.openjdk.java.net/jdk/pull/5497