add conversation flags to channel atom

Bug: 156359915
Test: atest PreferencesHelperTest
Change-Id: I29637fa1a2b991fbe521c9077d3e8d62ebf3bca7
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index f00a35d..499713e 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -5982,6 +5982,12 @@
     optional int32 user_locked_fields = 6;
     // Indicates if the channel was deleted by the app.
     optional bool is_deleted = 7;
+    // Indicates if the channel was marked as a conversation by the app.
+    optional bool is_conversation = 8;
+    // Indicates if the channel is a conversation that was demoted by the user.
+    optional bool is_demoted_conversation = 9;
+    // Indicates if the channel is a conversation that was marked as important by the user.
+    optional bool is_important_conversation = 10;
 }
 
 /**