Add missing dependencies on audio, video and call to the new GN files.

This caused linker failures when depending on the new `api` target.

TBR=henrika@webrtc.org
NOTRY=True

Review-Url: https://codereview.webrtc.org/2029323006
Cr-Commit-Position: refs/heads/master@{#13042}

webrtc/api/BUILD.gn

@@ -117,6 +117,7 @@ source_set("libjingle_peerconnection") {
   }
 
   deps = [
+    "../call",
     "../media",
     "../pc",
   ]

webrtc/api/OWNERS

@@ -9,3 +9,5 @@ tommi@webrtc.org
 # structural changes, please get a review from a reviewer in this file.
 per-file *.gyp=*
 per-file *.gypi=*
+
+per-file BUILD.gn=kjellander@webrtc.org

webrtc/call/BUILD.gn

@@ -28,8 +28,10 @@ source_set("call") {
   deps = [
     "..:rtc_event_log",
     "..:webrtc_common",
+    "../audio",
     "../modules/congestion_controller",
     "../modules/rtp_rtcp",
     "../system_wrappers",
+    "../video",
   ]
 }