run-webkit-tests --leaks should check for leaks in the GPU process.
Already found and fixed a couple of leaks:
Bug 229262: Leak of CMSampleBufferRef (up to 2.25 KB each) in com.apple.WebKit.GPU.Development process
Bug 229264: Leak of CMBufferQueueRef (up to 752 bytes each) in com.apple.WebKit.GPU.Development process
Created attachment 435821 [details]
Committed r281221 (240658@main): <https://commits.webkit.org/240658@main>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 435821 [details].