Linking to QtWebEngine redirects "operator new" due to chromium's allocator_shim.cc

==4799== Mismatched free() / delete / delete []
==4799==    at 0x4C2A65D: operator delete(void*) (vg_replace_malloc.c:576)
==4799==    by 0x6CF853D: QVBoxLayout::~QVBoxLayout() (qboxlayout.cpp:1354)
==4799==    by 0x6D1CE90: QWidget::~QWidget() (qwidget.cpp:1594)
==4799==    by 0x6F631A1: QDialog::~QDialog() (qdialog.cpp:352)
==4799==    by 0x5152C85: Akonadi::EmailAddressSelectionDialog::~EmailAddressSelectionDialog() (emailaddressselectiondialog.cpp:92)
==4799==    by 0x401876: main (emailaddressselectiondialogtest.cpp:35)
==4799==  Address 0x279546e0 is 0 bytes inside a block of size 32 alloc'd
==4799==    at 0x4C29D78: operator new[](unsigned long) (vg_replace_malloc.c:423)
==4799==    by 0x5152DB7: Akonadi::EmailAddressSelectionDialog::Private::Private(Akonadi::EmailAddressSelectionDialog*, QAbstractItemModel*) (emailaddressselectiondialog.cpp:40)
==4799==    by 0x5152B22: Akonadi::EmailAddressSelectionDialog::EmailAddressSelectionDialog(QWidget*) (emailaddressselectiondialog.cpp:82)
==4799==    by 0x401681: main (emailaddressselectiondialogtest.cpp:35)

146├>void* ShimCppNew(size_t size) {
147│   const allocator::AllocatorDispatch* const chain_head = GetChainHead();
148│   void* ptr;
149│   do {
150│     ptr = chain_head->alloc_function(chain_head, size);
151│   } while (!ptr && CallNewHandler());
152│   return ptr;
153│ }

SHIM_ALWAYS_EXPORT void* operator new(size_t size)
    SHIM_ALIAS_SYMBOL(ShimCppNew);