Hooked up RtcEventLog. It lives in Voice Engine and pointers are propagated to ACM and Call.

webrtc/voice_engine/voice_engine.gyp

 # Copyright (c) 2011 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': [
     {
       'target_name': 'voice_engine',
       'type': 'static_library',
       'dependencies': [
         '<(webrtc_root)/common.gyp:webrtc_common',
         '<(webrtc_root)/common_audio/common_audio.gyp:common_audio',
         '<(webrtc_root)/modules/modules.gyp:audio_coding_module',
         '<(webrtc_root)/modules/modules.gyp:audio_conference_mixer',
         '<(webrtc_root)/modules/modules.gyp:audio_device',
         '<(webrtc_root)/modules/modules.gyp:audio_processing',
         '<(webrtc_root)/modules/modules.gyp:bitrate_controller',
         '<(webrtc_root)/modules/modules.gyp:media_file',
         '<(webrtc_root)/modules/modules.gyp:rtp_rtcp',
         '<(webrtc_root)/modules/modules.gyp:webrtc_utility',
         '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers',
+        '<(webrtc_root)/webrtc.gyp:rtc_event_log',
       ],
       'sources': [
         'include/voe_audio_processing.h',
         'include/voe_base.h',
         'include/voe_codec.h',
         'include/voe_dtmf.h',
         'include/voe_errors.h',
         'include/voe_external_media.h',
         'include/voe_file.h',
         'include/voe_hardware.h',
@@ skipping 107 matching lines @@
           'type': 'executable',
           'dependencies': [
             'voice_engine',
             '<(DEPTH)/testing/gmock.gyp:gmock',
             '<(DEPTH)/testing/gtest.gyp:gtest',
             '<(DEPTH)/third_party/gflags/gflags.gyp:gflags',
             '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers',
             '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers_default',
             '<(webrtc_root)/test/test.gyp:channel_transport',
             '<(webrtc_root)/test/test.gyp:test_support',
+            '<(webrtc_root)/webrtc.gyp:rtc_event_log',
            ],
           'sources': [
             'test/auto_test/automated_mode.cc',
             'test/auto_test/extended/agc_config_test.cc',
             'test/auto_test/extended/ec_metrics_test.cc',
             'test/auto_test/fakes/conference_transport.cc',
             'test/auto_test/fakes/conference_transport.h',
             'test/auto_test/fakes/fake_external_transport.cc',
             'test/auto_test/fakes/fake_external_transport.h',
             'test/auto_test/fixtures/after_initialization_fixture.cc',
@@ skipping 33 matching lines @@
             'test/auto_test/voe_test_defines.h',
             'test/auto_test/voe_test_interface.h',
           ],
           'conditions': [
             ['OS=="android"', {
               # some tests are not supported on android yet, exclude these tests.
               'sources!': [
                 'test/auto_test/standard/hardware_before_streaming_test.cc',
               ],
             }],
+            ['enable_protobuf==1', {
+              'defines': [
+                'ENABLE_RTC_EVENT_LOG',
+              ],
+            }],
           ],
           # Disable warnings to enable Win64 build, issue 1323.
           'msvs_disabled_warnings': [
             4267,  # size_t to int truncation.
           ],
         },
         {
           # command line test that should work on linux/mac/win
           'target_name': 'voe_cmd_test',
           'type': 'executable',
           'dependencies': [
             'voice_engine',
             '<(DEPTH)/testing/gtest.gyp:gtest',
             '<(DEPTH)/third_party/gflags/gflags.gyp:gflags',
             '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers',
             '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers_default',
             '<(webrtc_root)/test/test.gyp:channel_transport',
             '<(webrtc_root)/test/test.gyp:test_support',
+            '<(webrtc_root)/webrtc.gyp:rtc_event_log',
           ],
           'sources': [
             'test/cmd_test/voe_cmd_test.cc',
           ],
         },
       ], # targets
       'conditions': [
         ['OS=="android"', {
           'targets': [
             {
@@ skipping 32 matching lines @@
               'sources': [
                 'voe_auto_test.isolate',
               ],
             },
           ],
         }],
       ],  # conditions
     }], # include_tests
   ], # conditions
 }