Wire up H264 fmtp  sprop-parameter-sets with H264SpsPpsTracker.

To avoid making this CL large unittests will be added in a followup CL.

BUG=webrtc:5948

patch from issue 2570073002 at patchset 20001 (http://crrev.com/2570073002#ps20001)

Review-Url: https://codereview.webrtc.org/2565173009
Cr-Commit-Position: refs/heads/master@{#15710}
diff --git a/webrtc/video/BUILD.gn b/webrtc/video/BUILD.gn
index 6975609..312f3f4 100644
--- a/webrtc/video/BUILD.gn
+++ b/webrtc/video/BUILD.gn
@@ -63,6 +63,7 @@
     "../base:rtc_task_queue",
     "../common_video",
     "../logging:rtc_event_log_api",
+    "../media:rtc_media_base",
     "../modules/bitrate_controller",
     "../modules/congestion_controller",
     "../modules/pacing",