Add the Mojo implementation of authenticator.mojom's MakeCredential.

components/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/chrome_build.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//printing/features/features.gni")
 import("//rlz/features/features.gni")
 import("//testing/test.gni")
@@ skipping 212 matching lines @@
       "//components/subresource_filter/content/browser:unit_tests",
       "//components/subresource_filter/content/common:unit_tests",
       "//components/subresource_filter/content/renderer:unit_tests",
       "//components/tracing:unit_tests",
       "//components/visitedlink/test:unit_tests",
       "//components/viz/common:unit_tests",
       "//components/viz/host:unit_tests",
       "//components/viz/service:unit_tests",
       "//components/wallpaper:unit_tests",
       "//components/web_cache/browser:unit_tests",
+      "//components/webauth:unit_tests",
       "//components/webcrypto:unit_tests",
     ]
 
     data_deps = [
       ":components_tests_pak",
       "//third_party/mesa:osmesa",
       "//ui/resources:ui_test_pak",
     ]
   }  # iOS/!iOS
 
@@ skipping 275 matching lines @@
       "//testing/perf",
       "//url",
     ]
 
     if (!is_ios) {
       sources += [ "discardable_memory/common/discardable_shared_memory_heap_perftest.cc" ]
       deps += [ "//components/discardable_memory/common" ]
     }
   }
 }