[IndexedDB] Use consistent enums on both sides of IPC.

content/browser/indexed_db/indexed_db_cursor.h

Index: content/browser/indexed_db/indexed_db_cursor.h
diff --git a/content/browser/indexed_db/indexed_db_cursor.h b/content/browser/indexed_db/indexed_db_cursor.h
index 7c1491aff7f4aedfee0a234fe07dd93a82757468..c1ad8ef50dcee0fce0ae0fa46eb459545d0df1b4 100644
--- a/content/browser/indexed_db/indexed_db_cursor.h
+++ b/content/browser/indexed_db/indexed_db_cursor.h
@@ -23,7 +23,7 @@ class CONTENT_EXPORT IndexedDBCursor
  public:
   IndexedDBCursor(scoped_ptr<IndexedDBBackingStore::Cursor> cursor,
                   indexed_db::CursorType cursor_type,
-                  IndexedDBDatabase::TaskType task_type,
+                  blink::TaskType task_type,
                   IndexedDBTransaction* transaction);
 
   void Advance(uint32 count, scoped_refptr<IndexedDBCallbacks> callbacks);
@@ -59,7 +59,7 @@ class CONTENT_EXPORT IndexedDBCursor
 
   ~IndexedDBCursor();
 
-  IndexedDBDatabase::TaskType task_type_;
+  blink::TaskType task_type_;
   indexed_db::CursorType cursor_type_;
   const scoped_refptr<IndexedDBTransaction> transaction_;