Remove HID devices not found during enumeration on Windows.

device/hid/hid_service.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "device/hid/hid_service.h"
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/memory/scoped_vector.h"
 #include "base/stl_util.h"
@@ skipping 72 matching lines @@
   }
 }
 
 void HidService::RemoveDevice(const HidDeviceId& device_id) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DeviceMap::iterator it = devices_.find(device_id);
   if (it != devices_.end())
     devices_.erase(it);
 }
 
+const HidService::DeviceMap& HidService::GetDevicesNoEnumerate() const {
+  return devices_;
+}
+
 HidService* HidService::GetInstance() {
   if (!g_hid_service_ptr.Get().get())
     g_hid_service_ptr.Get().reset(CreateInstance());
   return g_hid_service_ptr.Get().get();
 }
 
 }  // namespace device