Add taskid for navigation, created in session sync

components/sync/protocol/session_specifics.proto

Index: components/sync/protocol/session_specifics.proto
diff --git a/components/sync/protocol/session_specifics.proto b/components/sync/protocol/session_specifics.proto
index 0c8095d2233ef791c9627d4a028e3d5c3e8a4b8a..bdbc2ebb985442d36c8c38499927fb8a96b89ef6 100644
--- a/components/sync/protocol/session_specifics.proto
+++ b/components/sync/protocol/session_specifics.proto
@@ -156,6 +156,8 @@ message TabNavigation {
   }
   // Whether the Password Manager saw a password field on the page.
   optional PasswordState password_state = 26;
+

[Patrick Noland, 2017/03/24 20:51:57]

Please add a comment, ideally explaining why it's repeated int64

[shenchao, 2017/03/25 23:53:13]

Done.

+  repeated int64 task_ids_on_path = 27;
 }
 
 // Navigation information for a single redirection within a single navigation.