Update webrtc visiblity to SDK (#23)

Author: taste1981

BUILD.gn

@@ -203,6 +203,10 @@ config("common_inherited_config") {
   if (is_ubsan) {
     cflags += [ "-fsanitize=float-cast-overflow" ]
   }
+
+  if (!rtc_use_h265) {
+    defines += [ "DISABLE_H265" ]
+  }
 }
 
 # TODO(bugs.webrtc.org/9693): Remove the possibility to suppress this warning
@@ -403,6 +407,10 @@ if (!build_with_chromium) {
     # Only the root target should depend on this.
     visibility = [ ".:default" ]
 
+    if (build_with_owt) {
+      visibility += [ "//talk/owt" ]
+    }
+
     sources = []
     complete_static_lib = true
     suppressed_configs += [ "//build/config/compiler:thin_archive" ]