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 72d65ce723e985a331cdd2c3e286af32d2ade7c3..7b1c287d77fff25ead58686adaee99904e42c24e 100644
--- a/content/browser/indexed_db/indexed_db_database.h
+++ b/content/browser/indexed_db/indexed_db_database.h
@@ -38,6 +38,7 @@ class IndexedDBFactory;
 class IndexedDBKey;
 class IndexedDBKeyPath;
 class IndexedDBKeyRange;
+class IndexedDBObserver;
 class IndexedDBTransaction;
 struct IndexedDBValue;
 
@@ -50,6 +51,8 @@ class CONTENT_EXPORT IndexedDBDatabase
   // Identifier is pair of (origin, database name).
   using Identifier = std::pair<url::Origin, base::string16>;
 
+  std::map<int64_t, IndexedDBObserver*> active_observers_;

[dmurph, 2016/06/17 09:05:06]

wrap IndexedDBObserver with std::unique_ptr

[palakj1, 2016/06/18 05:13:40]

Done

+
   static const int64_t kInvalidId = 0;
   static const int64_t kMinimumIndexId = 30;
 
@@ -124,6 +127,9 @@ class CONTENT_EXPORT IndexedDBDatabase
   // Called by transactions to report failure committing to the backing store.
   void TransactionCommitFailed(const leveldb::Status& status);
 
+  void Observe(int64_t transaction_id, int64_t observer_id);
+  void Unobserve(std::vector<int64_t> observersToRemove);
+
   void Get(int64_t transaction_id,
            int64_t object_store_id,
            int64_t index_id,