[IndexedDB] Add transaction coordinator.

chrome/renderer/indexed_db_dispatcher.h

Index: chrome/renderer/indexed_db_dispatcher.h
diff --git a/chrome/renderer/indexed_db_dispatcher.h b/chrome/renderer/indexed_db_dispatcher.h
index ed551ec5d5cf05228a55ec267342c28b5d595d00..e556a966d0d7f5d554d4b5b289d459d8c280724e 100644
--- a/chrome/renderer/indexed_db_dispatcher.h
+++ b/chrome/renderer/indexed_db_dispatcher.h
@@ -11,6 +11,7 @@
 #include "ipc/ipc_message.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebIDBCallbacks.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebIDBDatabase.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebIDBTransactionCallbacks.h"
 
 class IndexedDBKey;
 class SerializedScriptValue;
@@ -64,6 +65,9 @@ class IndexedDBDispatcher {
       const string16& name, WebKit::WebIDBCallbacks* callbacks,
       int32 idb_object_store_id);
 
+  void RequestIDBTransactionSetCallbacks(
+      WebKit::WebIDBTransactionCallbacks* callbacks);
+
  private:
   // IDBCallback message handlers.
   void OnSuccessNull(int32 response_id);
@@ -74,10 +78,13 @@ class IndexedDBDispatcher {
   void OnSuccessSerializedScriptValue(int32 response_id,
                                       const SerializedScriptValue& value);
   void OnError(int32 response_id, int code, const string16& message);
+  void OnAbort(int transaction_id);
 
   // Careful! WebIDBCallbacks wraps non-threadsafe data types. It must be
   // destroyed and used on the same thread it was created on.
   IDMap<WebKit::WebIDBCallbacks, IDMapOwnPointer> pending_callbacks_;
+  IDMap<WebKit::WebIDBTransactionCallbacks, IDMapOwnPointer>
+      pending_transaction_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(IndexedDBDispatcher);
 };