Split rtc_task_queue target. Add separate target for sequenced_task_checker and weak_ptr.

webrtc/sdk/android/BUILD.gn

 # Copyright (c) 2016 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("//webrtc/webrtc.gni")
 import("//build/config/android/config.gni")
@@ skipping 57 matching lines @@
     ]
   }
 
   deps = [
     "../..:webrtc_common",
     "../../api:video_frame_api",
     "../../api/video_codecs:video_codecs_api",
     "../../base:rtc_base",
     "../../base:rtc_base_approved",
     "../../base:rtc_task_queue",
+    "../../base:sequenced_task_checker",
+    "../../base:weak_ptr",
     "../../common_video:common_video",
     "../../media:rtc_media",
     "../../media:rtc_media_base",
     "../../modules/utility:utility",
     "../../modules/video_coding:video_coding_utility",
     "../../system_wrappers:system_wrappers",
     "../../voice_engine:voice_engine",
     "//webrtc/pc:libjingle_peerconnection",
   ]
 
@@ skipping 169 matching lines @@
       "//third_party/android_support_test_runner:runner_java",
       "//third_party/junit",
       "//webrtc/base:base_java",
       "//webrtc/sdk/android:libjingle_peerconnection_java",
       "//webrtc/sdk/android:libjingle_peerconnection_metrics_default_java",
     ]
 
     shared_libraries = [ "//webrtc/sdk/android:libjingle_peerconnection_so" ]
   }
 }