Bug 269159 – assertion failed in RemoteMediaResourceManager

• Component: Media
• Status: RESOLVED FIXED

[Jean-Yves Avenard [:jya]]

```
Thread 5 Crashed::  Dispatch queue: PlatformMediaResourceLoader
0   JavaScriptCore                	       0x138fcf5a8 WTFCrash + 24 (Assertions.cpp:351)
1   WebKit                        	       0x11cce6f74 WTFCrashWithInfo(int, char const*, char const*, int) + 36 (Assertions.h:780)
2   WebKit                        	       0x11dda01a8 WTF::assertIsMainThread() + 100 (MainThread.h:81)
3   WebKit                        	       0x11df28dd8 WebKit::RemoteMediaResourceManager::~RemoteMediaResourceManager() + 64 (RemoteMediaResourceManager.cpp:52)
4   WebKit                        	       0x11df28f50 WebKit::RemoteMediaResourceManager::~RemoteMediaResourceManager() + 32 (RemoteMediaResourceManager.cpp:51)
5   WebKit                        	       0x11df28f80 WebKit::RemoteMediaResourceManager::~RemoteMediaResourceManager() + 32 (RemoteMediaResourceManager.cpp:51)
6   WebKit                        	       0x11d5ffa08 void WTF::ThreadSafeWeakPtrControlBlock::strongDeref<IPC::WorkQueueMessageReceiver, (WTF::DestructionThread)0>() const::'lambda'()::operator()() const + 104 (ThreadSafeWeakPtr.h:101)
7   WebKit                        	       0x11d5ff984 void WTF::ThreadSafeWeakPtrControlBlock::strongDeref<IPC::WorkQueueMessageReceiver, (WTF::DestructionThread)0>() const + 292 (ThreadSafeWeakPtr.h:107)
8   WebKit                        	       0x11dd1e4a0 WTF::ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr<IPC::WorkQueueMessageReceiver, 
```

[Radar WebKit Bug Importer]

<rdar://problem/122738285>

[Jean-Yves Avenard [:jya]]

Pull request: https://github.com/WebKit/WebKit/pull/24227

[EWS]

Committed 274446@main (2410dda9eaf4): <https://commits.webkit.org/274446@main>

Reviewed commits have been landed. Closing PR #24227 and removing active labels.