Move optional.h to webrtc/api/
We use Optional in our public API, so its header should be in
webrtc/api/.
BUG=webrtc:8205
Review-Url: https://codereview.webrtc.org/3011943002
Cr-Commit-Position: refs/heads/master@{#19693}
diff --git a/webrtc/modules/video_coding/BUILD.gn b/webrtc/modules/video_coding/BUILD.gn
index 3af09ea..3bf221b 100644
--- a/webrtc/modules/video_coding/BUILD.gn
+++ b/webrtc/modules/video_coding/BUILD.gn
@@ -96,6 +96,7 @@
":webrtc_vp9",
"..:module_api",
"../..:webrtc_common",
+ "../../api:optional",
"../../call:video_stream_api",
"../../common_video",
"../../rtc_base:rtc_base",
@@ -136,6 +137,7 @@
deps = [
"..:module_api",
"../..:webrtc_common",
+ "../../api:optional",
"../../api/video_codecs:video_codecs_api",
"../../common_video",
"../../modules/rtp_rtcp:rtp_rtcp",
@@ -232,6 +234,7 @@
":video_coding_utility",
"..:module_api",
"../..:webrtc_common",
+ "../../api:optional",
"../../api/video_codecs:video_codecs_api",
"../../common_video",
"../../rtc_base:rtc_base_approved",
@@ -438,6 +441,7 @@
":webrtc_h264",
":webrtc_vp8",
":webrtc_vp9",
+ "../../api:optional",
"../../api:video_frame_api",
"../../common_video:common_video",
"../../rtc_base:rtc_base_approved",