Add new chrome://proximity-auth WebUI for debugging Smart Lock.

chrome/browser/ui/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")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("../../chrome_browser_ui.gypi") ],
@@ skipping 116 matching lines @@
     sources += rebase_path(gypi_values.chrome_browser_ui_non_mobile_sources,
                            ".",
                            "//chrome")
     sources +=
         rebase_path(gypi_values.chrome_browser_ui_omnibox_non_mobile_sources,
                     ".",
                     "//chrome")
     deps += [
       "//components/copresence",
       "//components/feedback/proto",
+      "//components/proximity_auth/webui",
       "//device/bluetooth",
       "//third_party/libusb",
     ]
   }
 
   if (enable_basic_printing || enable_print_preview) {
     deps += [ "//printing" ]
   }
 
   if (enable_one_click_signin) {
@@ skipping 387 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }