IDBObserver: Lifetime Management: Adding Observer

content/browser/indexed_db/indexed_db_database.h

Index: content/browser/indexed_db/indexed_db_database.h
diff --git a/content/browser/indexed_db/indexed_db_database.h b/content/browser/indexed_db/indexed_db_database.h
index bcbdb538770f051a9cbcb00f08f27b4eea066a06..07be1500fbdcc2cf4e0009c7e5bcc90f0c78316b 100644
--- a/content/browser/indexed_db/indexed_db_database.h
+++ b/content/browser/indexed_db/indexed_db_database.h
@@ -125,6 +125,10 @@ class CONTENT_EXPORT IndexedDBDatabase
   // Called by transactions to report failure committing to the backing store.
   void TransactionCommitFailed(const leveldb::Status& status);
 
+  void AddPendingObserver(int64_t transaction_id, int32_t observer_id);
+  void RemovePendingObservers(IndexedDBConnection*,

[cmumford, 2016/07/01 18:35:00]

Nit: Blink style says to "Leave meaningless variable names out of function
declarations", but in chromium we always have them, so add "connection".

[palakj1, 2016/07/02 00:48:13]

Done.

+                              const std::vector<int32_t>& pending_observer_ids);
+
   void Get(int64_t transaction_id,
            int64_t object_store_id,
            int64_t index_id,