问题是这样的，blink线程的void WaitableEvent::Wait() 里会卡死，等待UI线程。但UI线程可能在等blink线程的npapi真窗口响应消息。
理论上的解决方式，应该是blink线程不放真窗口，但实在要改太多东西，现在我只好折中一下，把void WaitableEvent::Wait()里加上消息循环，临时处理下真窗口消息。
但这样又有重入的问题：
KernelBase.dll!_DebugBreak@0 未知 node.dll!logging::LogMessage::Init C node.dll!logging::LogMessage::LogMessage C node.dll!gpu::gles2::GLES2Implementation::SingleThreadChecker::SingleThreadChecker C node.dll!gpu::gles2::GLES2Implementation::Viewport C node.dll!gpu_blink::WebGraphicsContext3DImpl::viewport C node.dll!blink::WebGLRenderingContextBase::viewport C node.dll!blink::WebGLRenderingContextV8Internal::viewportMethod C node.dll!blink::WebGLRenderingContextV8Internal::viewportMethodCallback C node.dll!v8::internal::FunctionCallbackArguments::Call C node.dll!v8::internal::`anonymous namespace'::HandleApiCallHelper<0> C node.dll!v8::internal::Builtin_Impl_HandleApiCall C node.dll!v8::internal::Builtin_HandleApiCall C 3d28607e 未知 node.dll!v8::internal::`anonymous namespace'::Invoke C node.dll!v8::internal::Execution::Call C node.dll!v8::Function::Call C node.dll!blink::V8ScriptRunner::callFunction C node.dll!blink::ScriptController::callFunction C node.dll!blink::V8FrameRequestCallback::handleEvent C node.dll!blink::FrameRequestCallbackCollection::executeCallbacks C node.dll!blink::ScriptedAnimationController::executeCallbacks C node.dll!blink::ScriptedAnimationController::serviceScriptedAnimations C node.dll!blink::Document::serviceScriptedAnimations C node.dll!blink::PageAnimator::serviceScriptedAnimations C node.dll!blink::PageWidgetDelegate::animate C node.dll!blink::WebViewImpl::beginFrame C node.dll!content::WebPageImpl::onBeginMainFrame C node.dll!content::RenderWidgetCompositor::BeginMainFrame C node.dll!cc::LayerTreeHost::BeginMainFrame C node.dll!cc::ThreadProxy::BeginMainFrame C node.dll!base::internal::RunnableAdapter<void (__thiscall cc::ThreadProxy::*)(scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> >)>::Run C node.dll!base::internal::InvokeHelper<1,void,base::internal::RunnableAdapter<void (__thiscall cc::ThreadProxy::*)(scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> >)>,base::internal::TypeList<base::WeakPtr<cc::ThreadProxy> const &,scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> > > >::MakeItSo C node.dll!base::internal::Invoker<base::IndexSequence<0,1>,base::internal::BindState<base::internal::RunnableAdapter<void (__thiscall cc::ThreadProxy::*)(scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> >)>,void __cdecl(cc::ThreadProxy *,scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> >),base::internal::TypeList<base::WeakPtr<cc::ThreadProxy>,base::internal::PassedWrapper<scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> > > > >,base::internal::TypeList<base::internal::UnwrapTraits<base::WeakPtr<cc::ThreadProxy> >,base::internal::UnwrapTraits<base::internal::PassedWrapper<scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> > > > >,base::internal::InvokeHelper<1,void,base::internal::RunnableAdapter<void (__thiscall cc::ThreadProxy::*)(scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> >)>,base::internal::TypeList<base::WeakPtr<cc::ThreadProxy> const &,scoped_ptr<cc::ThreadProxy::BeginMainFrameAndCommitState,base::DefaultDeleter<cc::ThreadProxy::BeginMainFrameAndCommitState> > > >,void __cdecl(void)>::Run C node.dll!base::Callback<void __cdecl(void)>::Run C node.dll!base::debug::TaskAnnotator::RunTask C node.dll!base::MessageLoop::RunTask C node.dll!base::MessageLoop::DeferOrRunPendingTask C node.dll!base::MessageLoop::DoWork C node.dll!base::MessagePumpForUI::HandleWorkMessage C node.dll!base::MessagePumpForUI::WndProcThunk C node.dll!base::win::WrappedWindowProc<&base::MessagePumpForUI::WndProcThunk> C user32.dll!_InternalCallWinProc@20 未知 user32.dll!_UserCallWinProcCheckWow@32 未知 user32.dll!_DispatchMessageWorker@8 未知 user32.dll!_DispatchMessageW@4 未知 > node.dll!base::WaitableEvent::Wait C node.dll!gpu::InProcessCommandBuffer::WaitForGetOffsetInRange C node.dll!gpu::CommandBufferHelper::WaitForGetOffsetInRange C node.dll!gpu::CommandBufferHelper::Finish C node.dll!gpu::gles2::GLES2Implementation::WaitForCmd C node.dll!gpu::gles2::GLES2Implementation::CheckFramebufferStatus C node.dll!gpu_blink::WebGraphicsContext3DImpl::checkFramebufferStatus C node.dll!blink::DrawingBuffer::resizeFramebuffer C node.dll!blink::DrawingBuffer::reset C node.dll!blink::WebGLRenderingContextBase::reshape C node.dll!blink::HTMLCanvasElement::reset C node.dll!blink::HTMLCanvasElement::parseAttribute C node.dll!blink::Element::attributeChanged C node.dll!blink::Element::didModifyAttribute C node.dll!blink::Element::setAttributeInternal C node.dll!blink::Element::setAttribute C node.dll!blink::Element::setIntegralAttribute C node.dll!blink::HTMLCanvasElement::setHeight C node.dll!blink::HTMLCanvasElementV8Internal::heightAttributeSetter C node.dll!blink::HTMLCanvasElementV8Internal::heightAttributeSetterCallback C node.dll!v8::internal::FunctionCallbackArguments::Call C node.dll!v8::internal::`anonymous namespace'::HandleApiCallHelper<0> C node.dll!v8::internal::Builtins::InvokeApiFunction C node.dll!v8::internal::Object::SetPropertyWithAccessor C node.dll!v8::internal::Object::SetPropertyInternal C node.dll!v8::internal::Object::SetProperty C node.dll!v8::internal::StoreIC::Store C node.dll!v8::internal::Runtime_StoreIC_Miss C 3d28607e 未知 node.dll!v8::internal::`anonymous namespace'::Invoke C node.dll!v8::internal::Execution::Call C node.dll!v8::Function::Call C node.dll!blink::V8ScriptRunner::callFunction C node.dll!blink::ScriptController::callFunction C node.dll!blink::ScriptController::callFunction C node.dll!blink::V8EventListener::callListenerFunction C node.dll!blink::V8AbstractEventListener::invokeEventHandler C node.dll!blink::V8AbstractEventListener::handleEvent C node.dll!blink::V8AbstractEventListener::handleEvent C node.dll!blink::EventTarget::fireEventListeners C node.dll!blink::EventTarget::fireEventListeners C node.dll!blink::Node::handleLocalEvents C node.dll!blink::NodeEventContext::handleLocalEvents C node.dll!blink::EventDispatcher::dispatchEventAtTarget C node.dll!blink::EventDispatcher::dispatch C node.dll!blink::EventDispatchMediator::dispatchEvent C node.dll!blink::EventDispatcher::dispatchEvent C node.dll!blink::Node::dispatchEvent C node.dll!blink::HTMLImageLoader::dispatchLoadEvent C node.dll!blink::ImageLoader::dispatchPendingLoadEvent C node.dll!blink::ImageLoader::dispatchPendingEvent C node.dll!blink::EventSender<blink::ImageLoader>::dispatchPendingEvents C node.dll!blink::EventSender<blink::ImageLoader>::timerFired C node.dll!blink::Timer<blink::EventSender<blink::ImageLoader> >::fired C node.dll!blink::TimerBase::runInternal C node.dll!blink::TimerBase::CancellableTimerTask::run C node.dll!content::WebTimerBase::fired C node.dll!content::WebThreadImpl::schedulerTasks C node.dll!content::WebThreadImpl::fire C node.dll!content::sharedTimerFiredFunction C node.dll!content::TimerWindowWndProc C user32.dll!_InternalCallWinProc@20 未知 user32.dll!_UserCallWinProcCheckWow@32 未知 user32.dll!_DispatchMessageWorker@8 未知 user32.dll!_DispatchMessageW@4 未知 node.dll!base::MessagePumpForUI::ProcessMessageHelper C node.dll!base::MessagePumpForUI::ProcessNextWindowsMessage C node.dll!base::MessagePumpForUI::DoRunLoop C node.dll!base::MessagePumpWin::RunWithDispatcher C node.dll!base::MessagePumpWin::Run C node.dll!base::MessageLoop::RunHandler C node.dll!base::RunLoop::Run C node.dll!base::RunLoop::RunUntilIdle C node.dll!base::MessageLoop::RunUntilIdle C node.dll!content::OrigChromeMgr::runUntilIdle C node.dll!wkeSetDebugConfig C mb.dll!040fd7a9 未知 mb.dll!040fdca9 未知 mb.dll!04186d0d 未知 kernel32.dll!@BaseThreadInitThunk@12 未知 ntdll.dll!___RtlUserThreadStart@8 未知 ntdll.dll!__RtlUserThreadStart@8 未知 现在的解决方案是搞个重入禁止的标记。
