Remove direct use of FieldTrials from modules/remote_bitrate_estimator

Instead use WebRtcKeyValueConfig and FieldTrialBasedConfig

BUG=webrtc:10335

Change-Id: Ie148cb466f86d8fa1ded5c7f125fbcccf6e7dbe3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132714
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27642}
diff --git a/modules/remote_bitrate_estimator/BUILD.gn b/modules/remote_bitrate_estimator/BUILD.gn
index 7ce7cba..20977b2 100644
--- a/modules/remote_bitrate_estimator/BUILD.gn
+++ b/modules/remote_bitrate_estimator/BUILD.gn
@@ -43,7 +43,9 @@
     "../..:webrtc_common",
     "../../api:network_state_predictor_api",
     "../../api:rtp_headers",
+    "../../api/transport:field_trial_based_config",
     "../../api/transport:network_control",
+    "../../api/transport:webrtc_key_value_config",
     "../../api/units:data_rate",
     "../../api/units:timestamp",
     "../../modules:module_api",
@@ -208,6 +210,7 @@
       ":remote_bitrate_estimator",
       "..:module_api_public",
       "../..:webrtc_common",
+      "../../api/transport:field_trial_based_config",
       "../../rtc_base",
       "../../rtc_base:checks",
       "../../rtc_base:rtc_base_approved",