RFR: 8260528: Clean glass-gtk sizing and positioning code [v25]

Fri Sep 30 06:53:31 UTC 2022

On Sun, 21 Mar 2021 00:31:35 GMT, Thiago Milczarek Sayao <tsayao at openjdk.org> wrote:

>> Thiago Milczarek Sayao has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix bug in content oriented child windows
>
> Testing:
> 
> **master**
> ![master](https://user-images.githubusercontent.com/30704286/111889893-6e793f80-89c3-11eb-8f38-640e8123794c.png)
> 
> **tsayao:glass_gtk_new_position_and_size**
> ![branch](https://user-images.githubusercontent.com/30704286/111889897-733df380-89c3-11eb-9929-2ed55471638e.png)
> 
> `--tests test.robot.javafx.scene.RobotTest` causes some intermittent error but eventually all passes.

@tsayao The work in this PR looks really good. If you want to continue with this, I will review it. There are some conflicts but those can easily be solved.

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PR: https://git.openjdk.org/jfx/pull/367