Change to calculate the real NTP in TimeTicks.

media/cast/cast.gyp

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'include_tests%': 1,
   },
   'targets': [
     {
       'target_name': 'cast_config',
       'type': 'static_library',
       'include_dirs': [
         '<(DEPTH)/',
       ],
       'sources': [
         'cast_config.cc',
         'cast_config.h',
         'cast_environment.cc',
         'cast_environment.h',
+        'cast_ntp_tick_clock.cc',
+        'cast_ntp_tick_clock.h',
       ], # source
     },
   ],  # targets,
   'conditions': [
     ['include_tests==1', {
       'targets': [
         {
           'target_name': 'cast_unittests',
           'type': '<(gtest_target_type)',
           'dependencies': [
             'cast_config',
             'cast_receiver.gyp:cast_receiver',
             'cast_sender.gyp:cast_sender',
             'logging/logging.gyp:cast_logging',
             '<(DEPTH)/base/base.gyp:run_all_unittests',
             '<(DEPTH)/net/net.gyp:net',
             '<(DEPTH)/testing/gmock.gyp:gmock',
             '<(DEPTH)/testing/gtest.gyp:gtest',
           ],
           'include_dirs': [
             '<(DEPTH)/',
             '<(DEPTH)/third_party/',
             '<(DEPTH)/third_party/webrtc/',
           ],
           'sources': [
             'audio_receiver/audio_decoder_unittest.cc',
             'audio_receiver/audio_receiver_unittest.cc',
             'audio_sender/audio_encoder_unittest.cc',
             'audio_sender/audio_sender_unittest.cc',
+            'cast_ntp_tick_clock_unittest.cc',
             'congestion_control/congestion_control_unittest.cc',
             'framer/cast_message_builder_unittest.cc',
             'framer/frame_buffer_unittest.cc',
             'framer/framer_unittest.cc',
             'pacing/mock_paced_packet_sender.cc',
             'pacing/mock_paced_packet_sender.h',
             'pacing/paced_sender_unittest.cc',
             'rtcp/mock_rtcp_receiver_feedback.cc',
             'rtcp/mock_rtcp_receiver_feedback.h',
             'rtcp/mock_rtcp_sender_feedback.cc',
@@ skipping 23 matching lines @@
             'rtcp/rtcp_sender_unittest.cc',
             'rtcp/rtcp_unittest.cc',
             'video_sender/video_encoder_unittest.cc',
             'video_sender/video_sender_unittest.cc',
           ], # source
         },
       ],  # targets
     }], # include_tests
   ],
 }