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 160 matching lines @@
     deps += [
       "//chrome/browser/safe_browsing:chunk_proto",
       "//chrome/common/safe_browsing:proto",
       "//chrome/browser/safe_browsing:report_proto",
     ]
   }
   if (is_chromeos) {
     sources += rebase_path(gypi_values.chrome_browser_ui_chromeos_sources,
                            ".",
                            "//chrome")
-    deps += [ "//chrome/browser/chromeos" ]
+    deps += [
+      "//chrome/browser/chromeos",
+      "//components/proximity_auth/webui",
+    ]
   } else {
     sources += rebase_path(gypi_values.chrome_browser_ui_non_chromeos_sources,
                            ".",
                            "//chrome")
   }
   if (use_cups) {
     configs += [ "//printing:cups" ]
   }
   if (use_ash) {
     sources +=
@@ skipping 342 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }