Probing: Add support for exponential startup probing

webrtc/modules/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("../build/webrtc.gni")
 import("audio_coding/audio_coding.gni")
@@ skipping 332 matching lines @@
       "audio_processing/vad/vad_audio_proc_unittest.cc",
       "audio_processing/vad/vad_circular_buffer_unittest.cc",
       "audio_processing/vad/voice_activity_detector_unittest.cc",
       "bitrate_controller/bitrate_controller_unittest.cc",
       "bitrate_controller/send_side_bandwidth_estimation_unittest.cc",
       "congestion_controller/congestion_controller_unittest.cc",
       "congestion_controller/delay_based_bwe_unittest.cc",
       "congestion_controller/delay_based_bwe_unittest_helper.cc",
       "congestion_controller/delay_based_bwe_unittest_helper.h",
       "congestion_controller/probe_bitrate_estimator_unittest.cc",
+      "congestion_controller/probe_controller_unittest.cc",
       "media_file/media_file_unittest.cc",
       "module_common_types_unittest.cc",
       "pacing/bitrate_prober_unittest.cc",
       "pacing/paced_sender_unittest.cc",
       "pacing/packet_router_unittest.cc",
       "remote_bitrate_estimator/bwe_simulations.cc",
       "remote_bitrate_estimator/include/mock/mock_remote_bitrate_estimator.h",
       "remote_bitrate_estimator/include/mock/mock_remote_bitrate_observer.h",
       "remote_bitrate_estimator/inter_arrival_unittest.cc",
       "remote_bitrate_estimator/overuse_detector_unittest.cc",
@@ skipping 295 matching lines @@
       sources += [
         "audio_device/ios/audio_device_unittest_ios.cc",
         "audio_device/ios/objc/RTCAudioSessionTest.mm",
         "video_coding/codecs/h264/h264_video_toolbox_nalu_unittest.cc",
       ]
 
       ldflags = [ "-ObjC" ]
     }
   }
 }