Improve code coverage of sdp_integration_fuzzer

[ddkilzer]

ea6d6f4

Improve code coverage of sdp_integration_fuzzer
https://bugs.webkit.org/show_bug.cgi?id=267113
<rdar://120503718>

Unreviewed re-land of changes from 269551@main.

* Source/ThirdParty/libwebrtc/Source/webrtc/test/fuzzers/sdp_integration_fuzzer.cc:
- Added WEBRTC_WEBKIT_BUILD guards to changes.
* Source/ThirdParty/libwebrtc/WebKit/sdp_integration_fuzzer-libwebrtc.diff:

Canonical link: https://commits.webkit.org/272671@main

7adcfb1

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
	✅ 🛠 watch
✅ 🛠 🧪 unsafe-merge	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on previous version of this PR (hash ed8ed4c)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
🧪 style	🛠 ios	🛠 mac	🛠 wpe	⏳ 🛠 wincairo
⏳ 🧪 bindings	🛠 ios-sim	🛠 mac-AS-debug	🧪 wpe-wk2
🧪 webkitperl	🧪 ios-wk2	🧪 api-mac	🧪 api-wpe
	🧪 ios-wk2-wpt	🧪 mac-wk1	🛠 gtk
⏳ 🛠 🧪 jsc	🧪 api-ios	🧪 mac-wk2	🧪 gtk-wk2
⏳ 🛠 🧪 jsc-arm64	⏳ 🛠 tv	🧪 mac-AS-debug-wk2	🧪 api-gtk
	⏳ 🛠 tv-sim	🧪 mac-wk2-stress	⏳ 🛠 jsc-armv7
	⏳ 🛠 watch		⏳ 🧪 jsc-armv7-tests
	⏳ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on current version of this PR (hash 7adcfb1)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
	✅ 🛠 watch
✅ 🛠 🧪 unsafe-merge	✅ 🛠 watch-sim

[webkit-commit-queue]

Committed 272671@main (ea6d6f4): https://commits.webkit.org/272671@main

Reviewed commits have been landed. Closing PR #22413 and removing active labels.