uploaded the patch for this @ https://codereview.chromium.org/2923773002/. 
PTAL.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0867b7646e170b2685bb47ed938fb4562f55c0df

commit 0867b7646e170b2685bb47ed938fb4562f55c0df
Author: nravi.n <nravi.n@samsung.com>
Date: Thu Jun 08 04:12:34 2017

Fix include guards in //device/usb

This patch updates the include guards for all .h files in //device/usb

BUG= 728444 

Review-Url: https://codereview.chromium.org/2923773002
Cr-Commit-Position: refs/heads/master@{#477882}

[modify] https://crrev.com/0867b7646e170b2685bb47ed938fb4562f55c0df/AUTHORS
[modify] https://crrev.com/0867b7646e170b2685bb47ed938fb4562f55c0df/device/usb/fake_usb_device_handle.h
[modify] https://crrev.com/0867b7646e170b2685bb47ed938fb4562f55c0df/device/usb/usb_device_linux.h
[modify] https://crrev.com/0867b7646e170b2685bb47ed938fb4562f55c0df/device/usb/usb_service_impl.h
[modify] https://crrev.com/0867b7646e170b2685bb47ed938fb4562f55c0df/device/usb/usb_service_linux.h
[modify] https://crrev.com/0867b7646e170b2685bb47ed938fb4562f55c0df/device/usb/usb_service_win.h

The patch has landed so this bug can be marked as fixed. Thank you nravi.n for your contribution!