ASSERTION FAILED: op == RemoveAll || targets->contains(target)
../../third_party/WebKit/Source/core/frame/EventHandlerRegistry.cpp(98) : bool blink::EventHandlerRegistry::updateEventHandlerTargets(blink::EventHandlerRegistry::ChangeOperation, blink::EventHandlerRegistry::EventHandlerClass, blink::EventTarget *)
1   0x7fd4822cf08d blink::EventHandlerRegistry::updateEventHandlerTargets(blink::EventHandlerRegistry::ChangeOperation, blink::EventHandlerRegistry::EventHandlerClass, blink::EventTarget*)
2   0x7fd4822cf1d8 blink::EventHandlerRegistry::updateEventHandlerInternal(blink::EventHandlerRegistry::ChangeOperation, blink::EventHandlerRegistry::EventHandlerClass, blink::EventTarget*)
3   0x7fd4822cf62a blink::EventHandlerRegistry::didRemoveEventHandler(blink::EventTarget&, blink::EventHandlerRegistry::EventHandlerClass)
4   0x7fd48bac733c blink::WebPluginContainerImpl::requestTouchEventType(blink::WebPluginContainer::TouchEventRequestType)
5   0x7fd48bac7dae blink::WebPluginContainerImpl::dispose()
6   0x7fd48bacb6ac
7   0x7fd48c38f749 blink::ThreadState::invokePreFinalizers()
8   0x7fd48c38f47b blink::ThreadState::preSweep()
9   0x7fd48c38fde3 blink::ThreadState::leaveSafePoint(blink::SafePointAwareMutexLocker*)
10  0x7fd48bf7086e
11  0x7fd48c38af41 blink::ThreadState::collectGarbage(blink::BlinkGC::StackState, blink::BlinkGC::GCType, blink::BlinkGC::GCReason)
12  0x7fd48c38d6b6 blink::ThreadState::runScheduledGC(blink::BlinkGC::StackState)
13  0x7fd48c38fb6a blink::ThreadState::safePoint(blink::BlinkGC::StackState)
14  0x7fd48bf76f5c
15  0x7fd48c2d5c29
16  0x7fd48c2a3fbb blink::scheduler::TaskQueueManager::ProcessTaskFromWorkQueue(blink::scheduler::internal::WorkQueue*)
17  0x7fd48c2a15d2 blink::scheduler::TaskQueueManager::DoWork(base::TimeTicks, bool)
18  0x7fd48c2aa32c
19  0x7fd48c2aa204
20  0x7fd48c2aa164
21  0x7fd48c2aa03c
22  0x7fd49b8047d1
23  0x7fd49b804199 base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*)
24  0x7fd49b895e2a base::MessageLoop::RunTask(base::PendingTask*)
25  0x7fd49b8960b4 base::MessageLoop::DeferOrRunPendingTask(base::PendingTask)
26  0x7fd49b89639e base::MessageLoop::DoWork()
27  0x7fd49b8adcf3 base::MessagePumpDefault::Run(base::MessagePump::Delegate*)
28  0x7fd49b8959aa base::MessageLoop::RunHandler()
29  0x7fd49b93dc44 base::RunLoop::Run()