This approach passes packetization mode to the encoder as part of

a cricket::VideoCodec structure, rather than as part of struct VideoCodecH264 inside webrtc::VideoCodec.

BUG=600254

Review-Url: https://codereview.webrtc.org/2528343002
Cr-Commit-Position: refs/heads/master@{#15437}

webrtc/modules/video_coding/BUILD.gn

@@ -158,6 +158,7 @@ rtc_static_library("webrtc_h264") {
     ]
     deps += [
       "../../common_video",
+      "../../media:rtc_media_base",
       "//third_party/ffmpeg:ffmpeg",
       "//third_party/openh264:encoder",
     ]