Wire up MediaState and Visibility updates with Core Runtime.

The DEPS update for cast_core protos are submitted in
https://chromium-review.googlesource.com/c/cast_core/public/+/3715464.

Bug: b:232140331
Tests: Ran on device
Change-Id: Ic26abd9fad260e264649fae3e4e05c8d73dc2ad4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3719319
Reviewed-by: Sean Topping <[email protected]>
Commit-Queue: Vigen Issahhanjan <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1024540}
diff --git a/chromecast/common/feature_constants.h b/chromecast/common/feature_constants.h
index 58c3098d..1251f7b 100644
--- a/chromecast/common/feature_constants.h
+++ b/chromecast/common/feature_constants.h
@@ -57,6 +57,7 @@
 extern const char kCastCoreFeaturePermissions[];
 extern const char kCastCoreFeaturePermissionOrigins[];
 extern const char kCastCoreIsAudioOnly[];
+extern const char kCastCoreIsRemoteControlMode[];
 
 }  // namespace feature
 }  // namespace chromecast