Skip attempting to bind a DevicePtr for a removed device.

content/renderer/usb/web_usb_device_impl.cc

Index: content/renderer/usb/web_usb_device_impl.cc
diff --git a/content/renderer/usb/web_usb_device_impl.cc b/content/renderer/usb/web_usb_device_impl.cc
index 4182644edaff0e48e1a0201b9e7b94d2ecbce9ff..d5dcf2f17c517cf26bcc7179282816c78a726a17 100644
--- a/content/renderer/usb/web_usb_device_impl.cc
+++ b/content/renderer/usb/web_usb_device_impl.cc
@@ -235,7 +235,8 @@ WebUSBDeviceImpl::WebUSBDeviceImpl(device::usb::DevicePtr device,
     : device_(std::move(device)),
       device_info_(device_info),
       weak_factory_(this) {
-  device_.set_connection_error_handler([this]() { device_.reset(); });
+  if (device_)
+    device_.set_connection_error_handler([this]() { device_.reset(); });
 }
 
 WebUSBDeviceImpl::~WebUSBDeviceImpl() {}