Oilpan: Prepare to move AbstractSQLTransactionBackend, SQLTransactionBackend, and SQLTransactionCoo…

Source/modules/webdatabase/DatabaseBackend.h

Index: Source/modules/webdatabase/DatabaseBackend.h
diff --git a/Source/modules/webdatabase/DatabaseBackend.h b/Source/modules/webdatabase/DatabaseBackend.h
index 0b4eb6ffe2076cce44972addb5951e4c35af8b07..86100ce31cefc7a802eb63edc8eb77502cb40925 100644
--- a/Source/modules/webdatabase/DatabaseBackend.h
+++ b/Source/modules/webdatabase/DatabaseBackend.h
@@ -54,7 +54,7 @@ public:
     virtual bool openAndVerifyVersion(bool setVersionInNewDatabase, DatabaseError&, String& errorMessage) OVERRIDE FINAL;
     void close();
 
-    PassRefPtr<SQLTransactionBackend> runTransaction(PassRefPtrWillBeRawPtr<SQLTransaction>, bool readOnly, const ChangeVersionData*);
+    PassRefPtrWillBeRawPtr<SQLTransactionBackend> runTransaction(PassRefPtrWillBeRawPtr<SQLTransaction>, bool readOnly, const ChangeVersionData*);
     void scheduleTransactionStep(SQLTransactionBackend*);
     void inProgressTransactionCompleted();
 
@@ -71,7 +71,7 @@ private:
 
     void scheduleTransaction();
 
-    Deque<RefPtr<SQLTransactionBackend> > m_transactionQueue;
+    Deque<RefPtrWillBeMember<SQLTransactionBackend> > m_transactionQueue;

[haraken, 2014/03/18 13:45:20]

It's OK in this CL but we should implement HeapDeque in the near future.

[Mads Ager (chromium), 2014/03/18 13:57:10]

Right, Erik is getting close to having HeapLinkHashSet implemented. HeapDeque is
next. Once those are implemented we will probably remove the support for tracing
non-heap collections.

     Mutex m_transactionInProgressMutex;
     bool m_transactionInProgress;
     bool m_isTransactionQueueEnabled;