v8 DOMWrapperWorld needs virtual dtor
Created attachment 50641 [details] Patch
Comment on attachment 50641 [details] Patch Nice find! + RefCounted<DOMWrapperWorld should be + RefCounted<DOMWrapperWorld> Also, we usually wrap ChangeLogs at 80 chars.
Without this patch the following happens: V8Proxy::resetIsolatedWorlds() is calling the destructor of each V8IsolatedContext, which each have a RefPtr<IsolatedWorld> member variable. Since IsolatedWorld inherits from DOMWrapperWorld, which is declared as RefCounted<DOMWrapperWorld>, the deref() call is doing delete static_cast<DOMWrapperWorld*>(m_ptr). Since DOMWrapperWorld has no members and does not have a virtual destructor, it just does a free(). This means the IsolatedWorld's member variable, a DOMDataStoreHandle, is never destroyed and so the associated DOMDataStore is leaked and stays in the DOMDataStoreList.
Created attachment 50642 [details] Patch
Comment on attachment 50642 [details] Patch ok
Comment on attachment 50642 [details] Patch Clearing flags on attachment: 50642 Committed r55945: <http://trac.webkit.org/changeset/55945>
All reviewed patches have been landed. Closing bug.