Fix HidService lifetime issues

extensions/shell/browser/shell_device_client.cc

Index: extensions/shell/browser/shell_device_client.cc
diff --git a/extensions/shell/browser/shell_device_client.cc b/extensions/shell/browser/shell_device_client.cc
index b3c81680c983db9fe5987bb3bfbfda3c3058a07e..55b277b03019444b1fde9eba42db84effae5e484 100644
--- a/extensions/shell/browser/shell_device_client.cc
+++ b/extensions/shell/browser/shell_device_client.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "content/public/browser/browser_thread.h"
+#include "device/hid/hid_service.h"
 #include "device/usb/usb_service.h"
 
 namespace extensions {
@@ -20,4 +21,10 @@ device::UsbService* ShellDeviceClient::GetUsbService() {
           content::BrowserThread::UI));
 }
 
+device::HidService* ShellDeviceClient::GetHidService() {
+  return device::HidService::GetInstance(
+      content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::UI));
+}
+
 }