Linux: Dynamically load libudev.

content/browser/device_monitor_udev.cc

Index: content/browser/device_monitor_udev.cc
diff --git a/content/browser/device_monitor_udev.cc b/content/browser/device_monitor_udev.cc
index ddfe053eae2348217141ca34084346cc5a3455aa..6e2b4ec3b0acf71983a17ed37603331e901c9d97 100644
--- a/content/browser/device_monitor_udev.cc
+++ b/content/browser/device_monitor_udev.cc
@@ -6,13 +6,12 @@
 
 #include "content/browser/device_monitor_udev.h"
 
-#include <libudev.h>
-
 #include <string>
 
 #include "base/system_monitor/system_monitor.h"
 #include "content/browser/udev_linux.h"
 #include "content/public/browser/browser_thread.h"
+#include "device/udev_linux/udev.h"
 
 namespace {
 
@@ -72,7 +71,7 @@ void DeviceMonitorLinux::OnDevicesChanged(udev_device* device) {
 
   base::SystemMonitor::DeviceType device_type =
       base::SystemMonitor::DEVTYPE_UNKNOWN;
-  std::string subsystem(udev_device_get_subsystem(device));
+  std::string subsystem(device::udev_device_get_subsystem(device));
   for (size_t i = 0; i < arraysize(kSubsystemMap); ++i) {
     if (subsystem == kSubsystemMap[i].subsystem) {
       device_type = kSubsystemMap[i].device_type;