#0  0x00007ffff41c731d in write () from /lib/libpthread.so.0
#1  0x00005555563eefbd in IPC::Channel::ChannelImpl::ProcessOutgoingMessages (this=this@entry=
    0x55555b2de800) at ipc/ipc_channel_posix.cc:568
#2  0x00005555563ef818 in IPC::Channel::ChannelImpl::Send (this=0x55555b2de800, message=
    0x55555da944b0) at ipc/ipc_channel_posix.cc:636
#3  0x0000555557c7f5a5 in content::BrowserMessageFilter::Send (this=0x55555b0081e0, message=
    0x55555da944b0) at content/public/browser/browser_message_filter.cc:85
#4  0x0000555555ba2638 in IPC::SyncMessageSchema<Tuple4<int, std::string, std::string, std::string>, Tuple1<int&> >::DispatchWithSendParams<ChromeRenderMessageFilter, ChromeRenderMessageFilter, void (ChromeRenderMessageFilter::*)(int, std::string const&, std::string const&, std::string const&, int*)> (ok=true, send_params=..., msg=msg@entry=0x7fffe6256da0, obj=obj@entry=0x55555b0081e0, 
    sender=sender@entry=0x55555b0081e0, func=
    (void (ChromeRenderMessageFilter::*)(ChromeRenderMessageFilter * const, int, const std::basic_string<char, std::char_traits<char>, std::allocator<char> > &, const std::basic_string<char, std::char_traits<char>, std::allocator<char> > &, const std::basic_string<char, std::char_traits<char>, std::allocator<char> > &, int *)) 0x555555ba2040 <ChromeRenderMessageFilter::OnOpenChannelToExtension(int, std::string const&, std::string const&, std::string const&, int*)>)
    at ./ipc/ipc_message_utils.h:857
#5  0x0000555555ba28b8 in ExtensionHostMsg_OpenChannelToExtension::Dispatch<ChromeRenderMessageFilter, ChromeRenderMessageFilter, void (ChromeRenderMessageFilter::*)(int, std::string const&, std::string const&, std::string const&, int*)> (msg=msg@entry=0x7fffe6256da0, obj=obj@entry=0x55555b0081e0, 
    sender=sender@entry=0x55555b0081e0, func=
    (void (ChromeRenderMessageFilter::*)(ChromeRenderMessageFilter * const, int, const std::basic_string<char, std::char_traits<char>, std::allocator<char> > &, const std::basic_string<char, std::char_traits<char>, std::allocator<char> > &, const std::basic_string<char, std::char_traits<char>, std::allocator<char> > &, int *)) 0x555555ba2040 <ChromeRenderMessageFilter::OnOpenChannelToExtension(int, std::string const&, std::string const&, std::string const&, int*)>)
    at ./chrome/common/extensions/extension_messages.h:382
#6  0x0000555555ba42ac in ChromeRenderMessageFilter::OnMessageReceived (this=0x55555b0081e0, 
    message=..., message_was_ok=0x7fffe6256b3f)
    at chrome/browser/renderer_host/chrome_render_message_filter.cc:84
#7  0x0000555557c7f829 in content::BrowserMessageFilter::DispatchMessage (this=this@entry=
    0x55555b0081e0, message=...) at content/public/browser/browser_message_filter.cc:136
#8  0x0000555557c7fb8b in content::BrowserMessageFilter::OnMessageReceived (this=0x55555b0081e0, 
    message=...) at content/public/browser/browser_message_filter.cc:52
#9  0x00005555563f0e9d in IPC::ChannelProxy::Context::TryFilters (this=this@entry=0x55555b988aa0, 
    message=...) at ipc/ipc_channel_proxy.cc:72
#10 0x00005555563f0fa9 in IPC::ChannelProxy::Context::OnMessageReceived (this=0x55555b988aa0, 
    message=...) at ipc/ipc_channel_proxy.cc:86
#11 0x00005555563f2552 in IPC::internal::ChannelReader::DispatchInputData (this=this@entry=
    0x55555b2de800, input_data=input_data@entry=0x55555b2de810 "\035", 
    input_data_len=<optimized out>) at ipc/ipc_channel_reader.cc:75
#12 0x00005555563f26bb in IPC::internal::ChannelReader::ProcessIncomingMessages (this=
    0x55555b2de800) at ipc/ipc_channel_reader.cc:28
#13 0x00005555563efc2e in IPC::Channel::ChannelImpl::OnFileCanReadWithoutBlocking (this=
    0x55555b2de800, fd=81) at ipc/ipc_channel_posix.cc:796
#14 0x0000555556361308 in base::MessagePumpLibevent::FileDescriptorWatcher::OnFileCanReadWithoutBlocking (this=0x55555b2df850, fd=81, pump=0x55555a53ff00) at base/message_pump_libevent.cc:106
#15 0x0000555556361424 in base::MessagePumpLibevent::OnLibeventNotification (fd=81, 
    flags=<optimized out>, context=<optimized out>) at base/message_pump_libevent.cc:363
#16 0x00007ffff4fb58c4 in event_base_loop () from /lib/libevent-2.0.so.5
#17 0x00005555563601a8 in base::MessagePumpLibevent::Run (this=0x55555a53ff00, delegate=
    0x7fffe6257ab0) at base/message_pump_libevent.cc:243
#18 0x0000555556389ce4 in MessageLoop::RunInternal (this=0x7fffe6257ab0)
    at base/message_loop.cc:424
#19 0x0000555556389ea0 in RunHandler (this=<optimized out>) at base/message_loop.cc:397
#20 MessageLoop::Run (this=<optimized out>) at base/message_loop.cc:307
#21 0x00005555563b6d20 in base::Thread::ThreadMain (this=0x55555a539730)
    at base/threading/thread.cc:169
#22 0x00005555563b3003 in base::(anonymous namespace)::ThreadFunc (params=0x55555a52ff10)
    at base/threading/platform_thread_posix.cc:65
#23 0x00007ffff41c0e0f in start_thread () from /lib/libpthread.so.0
#24 0x00007ffff1be704d in clone () from /lib/libc.so.6