[ios] Adds code to support the iOS Handoff feature.

ios/chrome/BUILD.gn

 # Copyright 2015 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("//ios/build/config.gni")
 import("//testing/test.gni")
 
 test("ios_chrome_unittests") {
   deps = [
     # Ensure that all unit tests are run.
     "//ios/chrome/test:run_all_unittests",
 
     # Ensure that packed resources are available (it should be a dependency
     # of //ios/chrome/app however, Chrome on iOS uses different resources,
     # so the dependency cannot be added there).
     # TODO(crbug.com/653086): find a way to fix those dependency as part of
     # building Chromium for iOS, and then remove the dependency.
     "//ios/chrome/app/resources:packed_resources",
 
     # Add unit_tests target here.
     "//ios/chrome/app:unit_tests",
     "//ios/chrome/app/application_delegate:unit_tests",
     "//ios/chrome/browser:unit_tests",
     "//ios/chrome/browser/browsing_data:unit_tests",
+    "//ios/chrome/browser/device_sharing:unit_tests",
     "//ios/chrome/browser/favicon:unit_tests",
     "//ios/chrome/browser/geolocation:unit_tests",
     "//ios/chrome/browser/itunes_links:unit_tests",
     "//ios/chrome/browser/metrics:unit_tests",
     "//ios/chrome/browser/net:unit_tests",
     "//ios/chrome/browser/passwords:unit_tests",
     "//ios/chrome/browser/reading_list:unit_tests",
     "//ios/chrome/browser/snapshots:unit_tests",
     "//ios/chrome/browser/ssl:unit_tests",
     "//ios/chrome/browser/suggestions:unit_tests",
@@ skipping 10 matching lines @@
     "//ios/chrome/browser/update_client:unit_tests",
     "//ios/chrome/browser/voice:unit_tests",
     "//ios/chrome/browser/web_resource:unit_tests",
     "//ios/chrome/browser/webp_transcode:unit_tests",
     "//ios/chrome/common:unit_tests",
     "//ios/chrome/test:unit_tests",
   ]
 
   assert_no_deps = ios_assert_no_deps
 }