Add the copresence component.

components/copresence/proto/BUILD.gn

Index: components/copresence/proto/BUILD.gn
diff --git a/components/dom_distiller/core/proto/BUILD.gn b/components/copresence/proto/BUILD.gn
similarity index 62%
copy from components/dom_distiller/core/proto/BUILD.gn
copy to components/copresence/proto/BUILD.gn
index a061eafc1339687ca5f8d50a130f307577460584..87812ddeeeddd0afeabef77bf0f892cd3d41c7ae 100644
--- a/components/dom_distiller/core/proto/BUILD.gn
+++ b/components/copresence/proto/BUILD.gn
@@ -4,10 +4,13 @@
 
 import("//third_party/protobuf/proto_library.gni")
 
-# GYP version: components/dom_distiller.gypi:distilled_page_proto
+# GYP version: components/copresence.gypi:copresence_proto
 proto_library("proto") {
   sources = [
-    "distilled_article.proto",
-    "distilled_page.proto",
+    "codes.proto",
+    "data.proto",
+    "enums.proto",
+    "identity.proto",
+    "rpcs.proto",
   ]
 }