Remove unused function DeviceMonitorLinux::GetDeviceFromPath.

device/base/device_monitor_linux.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/base/device_monitor_linux.h"
 
 #include <memory>
+#include <string>
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/threading/thread_restrictions.h"
 #include "device/udev_linux/udev.h"
 
 namespace device {
 
 namespace {
@@ skipping 51 matching lines @@
 void DeviceMonitorLinux::AddObserver(Observer* observer) {
   DCHECK(thread_checker_.CalledOnValidThread());
   observers_.AddObserver(observer);
 }
 
 void DeviceMonitorLinux::RemoveObserver(Observer* observer) {
   DCHECK(thread_checker_.CalledOnValidThread());
   observers_.RemoveObserver(observer);
 }
 
-ScopedUdevDevicePtr DeviceMonitorLinux::GetDeviceFromPath(
-    const std::string& path) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  ScopedUdevDevicePtr device(
-      udev_device_new_from_syspath(udev_.get(), path.c_str()));
-  return device;
-}
-
 void DeviceMonitorLinux::Enumerate(const EnumerateCallback& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   ScopedUdevEnumeratePtr enumerate(udev_enumerate_new(udev_.get()));
 
   if (!enumerate) {
     LOG(ERROR) << "Failed to enumerate devices.";
     return;
   }
 
   if (udev_enumerate_scan_devices(enumerate.get()) != 0) {
@@ skipping 36 matching lines @@
   if (action == kUdevActionAdd) {
     for (auto& observer : observers_)
       observer.OnDeviceAdded(device.get());
   } else if (action == kUdevActionRemove) {
     for (auto& observer : observers_)
       observer.OnDeviceRemoved(device.get());
   }
 }
 
 }  // namespace device