Break out sdp_offer_answer from peerconnection

Bug: webrtc:13634
Change-Id: I4400c4d1a6aaf751774dbd8a9f697fd9fee1d297
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/251324
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35954}

pc/BUILD.gn

@@ -242,8 +242,6 @@ rtc_library("peerconnection") {
     "peer_connection.h",
     "peer_connection_factory.cc",
     "peer_connection_factory.h",
-    "sdp_offer_answer.cc",  # TODO: Make separate target when not circular
-    "sdp_offer_answer.h",  # dependent on peerconnection.h
   ]
 
   deps = [
@@ -571,6 +569,69 @@ rtc_source_set("rtc_stats_traversal") {
 
 rtc_source_set("sdp_offer_answer") {
   visibility = [ ":*" ]
+  sources = [
+    "sdp_offer_answer.cc",  # TODO: Make separate target when not circular
+    "sdp_offer_answer.h",  # dependent on peerconnection.h
+  ]
+  deps = [
+    ":connection_context",
+    ":data_channel_controller",
+    ":data_channel_utils",
+    ":ice_server_parsing",
+    ":media_stream",
+    ":media_stream_observer",
+    ":peer_connection_internal",
+    ":peer_connection_message_handler",
+    ":rtc_pc_base",
+    ":rtc_stats_collector",
+    ":rtp_receiver",
+    ":rtp_sender",
+    ":rtp_transceiver",
+    ":rtp_transmission_manager",
+    ":sdp_state_provider",
+    ":session_description",
+    ":simulcast_description",
+    ":stats_collector",
+    ":stream_collection",
+    ":transceiver_list",
+    ":usage_pattern",
+    ":webrtc_session_description_factory",
+    "../api:array_view",
+    "../api:audio_options_api",
+    "../api:libjingle_peerconnection_api",
+    "../api:media_stream_interface",
+    "../api:rtc_error",
+    "../api:rtp_parameters",
+    "../api:rtp_transceiver_direction",
+    "../api:scoped_refptr",
+    "../api:sequence_checker",
+    "../api/crypto:options",
+    "../api/transport:datagram_transport_interface",
+    "../api/video:builtin_video_bitrate_allocator_factory",
+    "../api/video:video_bitrate_allocator_factory",
+    "../media:rtc_media_base",
+    "../p2p:rtc_p2p",
+    "../rtc_base:checks",
+    "../rtc_base:logging",
+    "../rtc_base:macromagic",
+    "../rtc_base:refcount",
+    "../rtc_base:rtc_base",
+    "../rtc_base:rtc_base_approved",
+    "../rtc_base:rtc_operations_chain",
+    "../rtc_base:stringutils",
+    "../rtc_base:threading",
+    "../rtc_base:weak_ptr",
+    "../rtc_base/experiments:field_trial_parser",
+    "../rtc_base/third_party/sigslot:sigslot",
+    "../system_wrappers:field_trial",
+    "../system_wrappers:metrics",
+  ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/algorithm:container",
+    "//third_party/abseil-cpp/absl/memory:memory",
+    "//third_party/abseil-cpp/absl/strings:strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 rtc_source_set("jsep_ice_candidate") {
   visibility = [ ":*" ]

pc/sdp_offer_answer.cc

@@ -43,7 +43,7 @@
 #include "pc/dtls_transport.h"
 #include "pc/media_stream.h"
 #include "pc/media_stream_proxy.h"
-#include "pc/peer_connection.h"
+#include "pc/peer_connection_internal.h"
 #include "pc/peer_connection_message_handler.h"
 #include "pc/rtp_media_utils.h"
 #include "pc/rtp_sender.h"

pc/sdp_offer_answer.h

@@ -47,12 +47,12 @@
 #include "pc/channel.h"
 #include "pc/channel_interface.h"
 #include "pc/channel_manager.h"
+#include "pc/connection_context.h"
 #include "pc/data_channel_controller.h"
 #include "pc/ice_server_parsing.h"
 #include "pc/jsep_transport_controller.h"
 #include "pc/media_session.h"
 #include "pc/media_stream_observer.h"
-#include "pc/peer_connection_factory.h"
 #include "pc/peer_connection_internal.h"
 #include "pc/rtc_stats_collector.h"
 #include "pc/rtp_receiver.h"