[IndexedDB] Add transaction coordinator.

chrome/browser/in_process_webkit/indexed_db_callbacks.h

Index: chrome/browser/in_process_webkit/indexed_db_callbacks.h
diff --git a/chrome/browser/in_process_webkit/indexed_db_callbacks.h b/chrome/browser/in_process_webkit/indexed_db_callbacks.h
index 2bb6b2a027493d35ad3ee401027ceb29607ce892..510f98902cad549aaff17a42b14bb60ae9513ea4 100644
--- a/chrome/browser/in_process_webkit/indexed_db_callbacks.h
+++ b/chrome/browser/in_process_webkit/indexed_db_callbacks.h
@@ -14,6 +14,7 @@
 #include "chrome/common/render_messages.h"
 #include "chrome/common/serialized_script_value.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebIDBCallbacks.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebIDBTransactionCallbacks.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebIDBDatabaseError.h"
 
 // Template magic to figure out what message to send to the renderer based on
@@ -132,5 +133,27 @@ class IndexedDBCallbacks<void> : public IndexedDBCallbacksBase {
   DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBCallbacks);
 };
 
+class IndexedDBTransactionCallbacks
+    : public WebKit::WebIDBTransactionCallbacks {
+public:
+  IndexedDBTransactionCallbacks(
+      IndexedDBDispatcherHost* dispatcher_host, int transaction_id)
+      : dispatcher_host_(dispatcher_host), transaction_id_(transaction_id) {
+  }
+
+  virtual void onAbort() {
+    dispatcher_host_->Send(new ViewMsg_IDBTransactionCallbacksAbort(
+        transaction_id_));
+  }
+
+  virtual int id() const {
+    return transaction_id_;
+  }
+
+private:
+  int transaction_id_;
+  scoped_refptr<IndexedDBDispatcherHost> dispatcher_host_;
+};
+
 #endif  // CHROME_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CALLBACKS_H_