Modern IDB: Blob URL support for the private browsing backing store
Changing this to no longer be blocking the blob support bug.
I think this is going to come after all other work on Modern IDB is complete, so reversing the blocking relationship with the master bug.
We should also get the SessionID directly from the ScriptExecutionContext in IDBObjectStore::putOrAdd to support blobs from workers, too.
Pull request: https://github.com/WebKit/WebKit/pull/5113
<rdar://problem/100909306>
*** Bug 258820 has been marked as a duplicate of this bug. ***