PeerConnection[Interface]::GetStats(RTCStatsCollectorCallback*) added.

webrtc/stats/stats.gyp

 # 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.
 
 {
   'includes': [ '../build/common.gypi', ],
   'targets': [
     {
       # GN version: webrtc/stats:rtc_stats
       'target_name': 'rtc_stats',
       'type': 'static_library',
       'dependencies': [
-        '<(webrtc_root)/api/api.gyp:libjingle_peerconnection',
+        '<(webrtc_root)/api/api.gyp:rtc_stats_api',
+        '<(webrtc_root)/base/base.gyp:rtc_base_approved',
       ],
       'sources': [
         'rtcstats.cc',
         'rtcstats_objects.cc',
-        'rtcstatscollector.cc',
-        'rtcstatscollector.h',
         'rtcstatsreport.cc',
       ],
     },
   ],
   'conditions': [
     ['include_tests==1', {
       'targets': [
         {
           # GN version: webrtc/stats:rtc_stats_unittests
           'target_name': 'rtc_stats_unittests',
           'type': '<(gtest_target_type)',
           'dependencies': [
             '<(DEPTH)/testing/gmock.gyp:gmock',
             '<(webrtc_root)/base/base_tests.gyp:rtc_base_tests_utils',
             '<(webrtc_root)/system_wrappers/system_wrappers.gyp:metrics_default',
             'rtc_stats',
           ],
           'sources': [
             'rtcstats_unittest.cc',
-            'rtcstatscollector_unittest.cc',
             'rtcstatsreport_unittest.cc',
           ],
         },
       ],
     }],
   ],
 }