Add AsyncInvoker files for chromium GN build

webrtc/base/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/crypto.gni")
 import("//build/config/ui.gni")
@@ skipping 176 matching lines @@
   ]
 
   defines = [ "LOGGING=1" ]
 
   sources = [
     "arraysize.h",
     "asyncfile.cc",
     "asyncfile.h",
     "asynchttprequest.cc",
     "asynchttprequest.h",
+    "asyncinvoker-inl.h",
+    "asyncinvoker.cc",
+    "asyncinvoker.h",
     "asyncpacketsocket.cc",
     "asyncpacketsocket.h",
     "asyncresolverinterface.cc",
     "asyncresolverinterface.h",
     "asyncsocket.cc",
     "asyncsocket.h",
     "asynctcpsocket.cc",
     "asynctcpsocket.h",
     "asyncudpsocket.cc",
     "asyncudpsocket.h",
@@ skipping 136 matching lines @@
     }
 
     include_dirs = [
       "../overrides",
       "../../boringssl/src/include",
     ]
 
     public_configs += [ ":rtc_base_chromium_config" ]
   } else {
     sources += [
-      "asyncinvoker-inl.h",
-      "asyncinvoker.cc",
-      "asyncinvoker.h",
       "bandwidthsmoother.cc",
       "bandwidthsmoother.h",
       "bind.h",
       "bind.h.pump",
       "callback.h",
       "callback.h.pump",
       "fileutils_mock.h",
       "genericslot.h",
       "genericslot.h.pump",
       "httpserver.cc",
@@ skipping 257 matching lines @@
     defines += [ "CARBON_DEPRECATED=YES" ]
   }
 
   if (is_linux || is_android) {
     sources += [
       "linux.cc",
       "linux.h",
     ]
   }
 }