Remove metrics_default from rtc_media dependencies.

webrtc/sdk/sdk_tests.gyp

 # Copyright 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', ],
   'conditions': [
     ['OS=="ios" or (OS=="mac" and mac_deployment_target=="10.7")', {
       'targets': [
         {
           'target_name': 'rtc_sdk_peerconnection_objc_tests',
           'type': 'executable',
           'includes': [
             '../build/objc_common.gypi',
           ],
           'dependencies': [
             '<(webrtc_root)/base/base_tests.gyp:rtc_base_tests_utils',
             '<(webrtc_root)/sdk/sdk.gyp:rtc_sdk_peerconnection_objc',
+            '<(webrtc_root)/system_wrappers/system_wrappers.gyp:metrics_default',
           ],
           'sources': [
             'objc/Framework/UnitTests/RTCConfigurationTest.mm',
             'objc/Framework/UnitTests/RTCDataChannelConfigurationTest.mm',
             'objc/Framework/UnitTests/RTCIceCandidateTest.mm',
             'objc/Framework/UnitTests/RTCIceServerTest.mm',
             'objc/Framework/UnitTests/RTCMediaConstraintsTest.mm',
             'objc/Framework/UnitTests/RTCSessionDescriptionTest.mm',
           ],
           'xcode_settings': {
             # |-ObjC| flag needed to make sure category method implementations
             # are included:
             # https://developer.apple.com/library/mac/qa/qa1490/_index.html
             'OTHER_LDFLAGS': ['-ObjC'],
           },
         },
       ],
     }],  # OS=="ios" or (OS=="mac" and mac_deployment_target=="10.7")
   ],
 }