Enable per thread heap for database thread

third_party/WebKit/Source/modules/webdatabase/DatabaseThread.h

Index: third_party/WebKit/Source/modules/webdatabase/DatabaseThread.h
diff --git a/third_party/WebKit/Source/modules/webdatabase/DatabaseThread.h b/third_party/WebKit/Source/modules/webdatabase/DatabaseThread.h
index f8a726eec7a167f3a0ce364b2f2aceaf21826686..987b5873f24266c6deb6a279357971b6f3694933 100644
--- a/third_party/WebKit/Source/modules/webdatabase/DatabaseThread.h
+++ b/third_party/WebKit/Source/modules/webdatabase/DatabaseThread.h
@@ -77,10 +77,10 @@ private:
     // This set keeps track of the open databases that have been used on this thread.
     // This must be updated in the database thread though it is constructed and
     // destructed in the context thread.
-    HeapHashSet<Member<Database>> m_openDatabaseSet;
+    OwnPtr<HashSet<CrossThreadPersistent<Database>>> m_openDatabaseSet;

[haraken, 2016/05/24 16:15:28]

Why do we need an OwnPtr? Doesn't HashSet<CrossThreadPersistent<>> work?

[keishi, 2016/05/25 13:07:45]

Right this is no longer necessary.

 
     OwnPtr<SQLTransactionClient> m_transactionClient;
-    Member<SQLTransactionCoordinator> m_transactionCoordinator;
+    CrossThreadPersistent<SQLTransactionCoordinator> m_transactionCoordinator;
     TaskSynchronizer* m_cleanupSync;
 
     Mutex m_terminationRequestedMutex;