PlatformECKey should use a std::unique_ptr. Although there are no known leaks of PlatformECKey, keeping it in a std::unique_ptr makes it much harder to leak by accident. This change is very similar to Bug 193154 which changed PlatformRSAKey to use a std::unique_ptr.
Created attachment 358436 [details] Patch v1
<rdar://problem/47070633>
Comment on attachment 358436 [details] Patch v1 Clearing flags on attachment: 358436 Committed r239692: <https://trac.webkit.org/changeset/239692>
All reviewed patches have been landed. Closing bug.