Bug 304645 – Fix Objective-C leaks caused by missing -dealloc and missing -release

• Component: WebKit Misc.
• Status: RESOLVED FIXED

[David Kilzer (:ddkilzer)]

Fix Objective-C leaks caused by missing -dealloc and missing -release.

```
Source/WebKit/UIProcess/mac/_WKCaptionStyleMenuControllerMac.mm:53:1: warning: 'WKCaptionStyleMenuController' lacks a 'dealloc' instance method but must release '_savedActiveProfileID' [osx.cocoa.Dealloc]
   53 | @implementation WKCaptionStyleMenuController
      | ^
1 warning generated.

Source/WebKit/UIProcess/API/Cocoa/_WKAuthenticationExtensionsClientInputs.mm:34:5: warning: The '_eval' ivar in '_WKAuthenticationExtensionsClientInputs' was copied by a synthesized property but not released before '[super dealloc]' [osx.cocoa.Dealloc]
   34 |     [super dealloc];
      |     ^~~~~~~~~~~~~~~
Source/WebKit/UIProcess/API/Cocoa/_WKAuthenticationExtensionsClientInputs.mm:34:5: warning: The '_evalByCredential' ivar in '_WKAuthenticationExtensionsClientInputs' was copied by a synthesized property but not released before '[super dealloc]' [osx.cocoa.Dealloc]
   34 |     [super dealloc];
      |     ^~~~~~~~~~~~~~~
Source/WebKit/UIProcess/API/Cocoa/_WKAuthenticationExtensionsClientInputs.mm:34:5: warning: The '_largeBlob' ivar in '_WKAuthenticationExtensionsClientInputs' was copied by a synthesized property but not released before '[super dealloc]' [osx.cocoa.Dealloc]
   34 |     [super dealloc];
      |     ^~~~~~~~~~~~~~~
3 warnings generated.
```

[Radar WebKit Bug Importer]

<rdar://problem/167089343>

[David Kilzer (:ddkilzer)]

Pull request: https://github.com/WebKit/WebKit/pull/55836

[EWS]

Committed 305337@main (fd984eb67bc8): <https://commits.webkit.org/305337@main>

Reviewed commits have been landed. Closing PR #55836 and removing active labels.