Remove BrowserThread dependency from usb_service.

chrome/browser/BUILD.gn

 # 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.
 
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//components/nacl/nacl_defines.gni")
 import("//tools/grit/grit_rule.gni")
 
@@ skipping 143 matching lines @@
       "//components/precache/content",
       "//components/sessions",
       "//components/storage_monitor",
       "//components/translate/content/browser",
       "//components/url_matcher",
       "//components/usb_service",
       "//components/visitedlink/browser",
       "//components/visitedlink/common",
       "//components/web_modal",
       "//content/app/resources",
+      "//device/common",
       "//media",
       "//media/cast:net",
       "//mojo/environment:chromium",
       "//mojo/public/cpp/bindings",
       "//mojo/public/js/bindings",
       "//mojo/system",
       "//net:net_with_v8",
       "//third_party/WebKit/public:resources",
       "//third_party/expat",
       "//third_party/leveldatabase",
@@ skipping 488 matching lines @@
 # TODO(GYP) write internal action
 if (false) {  #if (is_chrome_branded) {
   action("chrome_internal_resources_gen") {
     # TODO(GYP)
   }
 } else {
   group("chrome_internal_resources_gen") {
     # Empty placeholder.
   }
 }