Update:
Bisect info:
This is regression issue broken in ‘M-69’ and providing bisect info below:
Good Build: 69.0.3462.0(Revision:567902) 
Bad Build:  69.0.3463.0(Revision:567865)

Narrow bisect URL :
https://chromium.googlesource.com/chromium/src/+log/e7652b9e1dbc2a95964864161283f4b8665154f3..ad910ae2f13f930e5db7dcb7a28fc1ab215513eb
(Unable to narrow down the range using per-revision bisect,hence providing bisect using old script)

Suspecting : https://chromium.googlesource.com/chromium/src/+/f34bba7c38758baf556aef6649fdd97f1b8a41a9

@Matt Menke : Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.
Thank You!

Deleted: Expected_Result.mp4 496 KB

	Expected_Result.mp4 496 KB View Download

Just to add some information:

Did this work with Enable network service flag disable?
Yes.
Thank You.

Unassigning from me - the network service is still an experimental feature, and my CL was made to make things not yet using the new API fail (Though, admittedly, ideally with network errors, rather than crashing).  We should certainly fix this before launching, of course.

Glancing at the call stack, I'm not sure what's causing the crash.  Strangely, if I try and repro this, I get the same crash stack as  issue 853696 , but the referenced crash ID in this bug looks completely different.

Stack Trace for the crash id:
-----------------------------
Thread 0 (id: 0xddc) CRASHED [EXCEPTION_ACCESS_VIOLATION_READ @ 0x00000010 ] MAGIC SIGNATURE THREAD
Stack Quality100%Show frame trust levels
0x00007fff934831b4	(chrome.dll -xtree:2095 )	std::_Tree<std::_Tmap_traits<const std::basic_string<char,std::char_traits<char>,std::allocator<char> >,GURL,std::less<const std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<std::pair<const std::basic_string<char,std::char_traits<char>,std::allocator<char> >,GURL> >,0> >::_Lbound<std::basic_string<char,std::char_traits<char>,std::allocator<char> > >
0x00007fff934895bb	(chrome.dll -xtree:1480 )	std::_Tree<std::_Tmap_traits<const std::basic_string<char,std::char_traits<char>,std::allocator<char> >,GURL,std::less<const std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::allocator<std::pair<const std::basic_string<char,std::char_traits<char>,std::allocator<char> >,GURL> >,0> >::find
0x00007fff93a2b95b	(chrome.dll -render_frame_host_impl.cc:4650 )	content::RenderFrameHostImpl::ConnectToPrefetchURLLoaderService(mojo::InterfaceRequest<blink::mojom::PrefetchURLLoaderService>)
0x00007fff93971949	(chrome.dll -bind_internal.h:663 )	base::internal::Invoker<base::internal::BindState<base::internal::IgnoreResultHelper<content::WebBluetoothServiceImpl *(content::RenderFrameHostImpl::*)(mojo::InterfaceRequest<blink::mojom::WebBluetoothService>)>,base::internal::UnretainedWrapper<content::RenderFrameHostImpl> >,void (mojo::InterfaceRequest<blink::mojom::WebBluetoothService>)>::Run
0x00007fff939717c7	(chrome.dll -interface_binder.h:69 )	service_manager::CallbackBinder<audio::mojom::DebugRecording>::RunCallback(base::RepeatingCallback<void > const &,mojo::InterfaceRequest<audio::mojom::DebugRecording>)
0x00007fff93971710	(chrome.dll -interface_binder.h:62 )	service_manager::CallbackBinder<audio::mojom::DebugRecording>::BindInterface(std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,mojo::ScopedHandleBase<mojo::MessagePipeHandle>)
0x00007fff92ece13f	(chrome.dll -binder_registry.h:86 )	service_manager::BinderRegistryWithArgs<>::BindInterface(std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,mojo::ScopedHandleBase<mojo::MessagePipeHandle>)
0x00007fff930e9eca	(chrome.dll -binder_registry.h:115 )	service_manager::BinderRegistryWithArgs<>::TryBindInterface(std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,mojo::ScopedHandleBase<mojo::MessagePipeHandle> *)
0x00007fff9337034d	(chrome.dll -render_frame_host_impl.cc:4705 )	content::RenderFrameHostImpl::GetInterface(std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,mojo::ScopedHandleBase<mojo::MessagePipeHandle>)
0x00007fff9336feac	(chrome.dll -interface_provider.mojom.cc:118 )	service_manager::mojom::InterfaceProviderStubDispatch::Accept(service_manager::mojom::InterfaceProvider *,mojo::Message *)
0x00007fff92e99410	(chrome.dll -multiplex_router.cc:864 )	mojo::internal::MultiplexRouter::ProcessIncomingMessage(mojo::internal::MultiplexRouter::MessageWrapper *,mojo::internal::MultiplexRouter::ClientCallBehavior,base::SequencedTaskRunner *)
0x00007fff92e98f56	(chrome.dll -multiplex_router.cc:589 )	mojo::internal::MultiplexRouter::Accept(mojo::Message *)
0x00007fff92e97ced	(chrome.dll -connector.cc:442 )	mojo::Connector::ReadSingleMessage(unsigned int *)
0x00007fff92e97b69	(chrome.dll -connector.cc:472 )	mojo::Connector::ReadAllAvailableMessages()
0x00007fff92e97a54	(chrome.dll -simple_watcher.cc:274 )	mojo::SimpleWatcher::OnHandleReady(int,unsigned int,mojo::HandleSignalsState const &)
0x00007fff92de00d4	(chrome.dll -task_annotator.cc:101 )	base::debug::TaskAnnotator::RunTask(char const *,base::PendingTask *)
0x00007fff92ddfbab	(chrome.dll -message_loop.cc:319 )	base::MessageLoop::RunTask(base::PendingTask *)
0x00007fff92ddf5f7	(chrome.dll -message_loop.cc:373 )	base::MessageLoop::DoWork()
0x00007fff92ece058	(chrome.dll -message_pump_win.cc:173 )	base::MessagePumpForUI::DoRunLoop()
0x00007fff92e24067	(chrome.dll -message_pump_win.cc:56 )	base::MessagePumpWin::Run(base::MessagePump::Delegate *)
0x00007fff92ddf150	(chrome.dll -run_loop.cc:102 )	base::RunLoop::Run()
0x00007fff9315c243	(chrome.dll -chrome_browser_main.cc:2053 )	ChromeBrowserMainParts::MainMessageLoopRun(int *)
0x00007fff9315c047	(chrome.dll -browser_main_loop.cc:976 )	content::BrowserMainLoop::RunMainMessageLoopParts()
0x00007fff9315bff2	(chrome.dll -browser_main_runner_impl.cc:169 )	content::BrowserMainRunnerImpl::Run()
0x00007fff9393c05e	(chrome.dll -browser_main.cc:51 )	content::BrowserMain(content::MainFunctionParams const &,std::unique_ptr<content::BrowserProcessSubThread,std::default_delete<content::BrowserProcessSubThread> >)
0x00007fff93ea0e8e	(chrome.dll -content_main_runner_impl.cc:621 )	content::RunBrowserProcessMain(content::MainFunctionParams const &,content::ContentMainDelegate *,std::unique_ptr<content::BrowserProcessSubThread,std::default_delete<content::BrowserProcessSubThread> >)
0x00007fff92dd59db	(chrome.dll -content_main_runner_impl.cc:983 )	content::ContentMainRunnerImpl::Run()
0x00007fff92dc5172	(chrome.dll -main.cc:459 )	service_manager::Main(service_manager::MainParams const &)
0x00007fff92dc4a07	(chrome.dll -content_main.cc:19 )	content::ContentMain(content::ContentMainParams const &)
0x00007fff92dc1af1	(chrome.dll -chrome_main.cc:101 )	ChromeMain
0x00007ff6db5e35d5	(chrome.exe -main_dll_loader_win.cc:201 )	MainDllLoader::Launch(HINSTANCE__ *,base::TimeTicks)
0x00007ff6db5e1698	(chrome.exe -chrome_exe_main_win.cc:230 )	wWinMain
0x00007ff6db6a0b65	(chrome.exe -exe_common.inl:283 )	__scrt_common_main_seh
0x00007fffc5391fe3	(KERNEL32.dll + 0x00011fe3 )	BaseThreadInitThunk
0x00007fffc6efcb30	(ntdll.dll + 0x0006cb30 )	RtlUserThreadStart

Update :
Rechecked the above issue on Windows(7,10)OS with latest Canary Chrome version : 69.0.3493.0 and the issue is Fixed.Kindly refer the attached screen cast for reference.

Deleted: Fixed_video.mp4 725 KB

	Fixed_video.mp4 725 KB View Download