RFR: 8290844: Add Skin.install() method

[Andy Goryachev]

On Wed, 27 Jul 2022 06:57:16 GMT, John Hendrikx <jhendrikx at openjdk.org> wrote:

>> - added Skin.install()
>> - javadoc changes for Skinnable.setSkin(Skin)
>> 
>> no code changes for Skinnable.setSkin(Skin) yet.
>
> modules/javafx.controls/src/main/java/javafx/scene/control/Control.java line 244:
> 
>> 242:             // check whether the skin is for right control
>> 243:             if (skin != null) {
>> 244:                 if(skin.getSkinnable() != Control.this) {
> 
> minor: Perhaps write this as one `if` (saves an indent level) or at least make the space after `if` consistent between the two.

added space.

with your permission, I'd rather have one statement per line - it's easier to step through in a debugger.

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PR: https://git.openjdk.org/jfx/pull/845