IndexedDB: chromium side of IDBCursor.advance().

content/common/indexed_db/proxy_webidbcursor_impl.cc

Index: content/common/indexed_db/proxy_webidbcursor_impl.cc
diff --git a/content/common/indexed_db/proxy_webidbcursor_impl.cc b/content/common/indexed_db/proxy_webidbcursor_impl.cc
index a86a74e361977797b3f3276521a222af13f24c26..cf2260daeb847730ee2f3722623ab22d057922ce 100644
--- a/content/common/indexed_db/proxy_webidbcursor_impl.cc
+++ b/content/common/indexed_db/proxy_webidbcursor_impl.cc
@@ -61,6 +61,17 @@ void RendererWebIDBCursorImpl::update(const WebSerializedScriptValue& value,
       content::SerializedScriptValue(value), callbacks, idb_cursor_id_, &ec);
 }
 
+void RendererWebIDBCursorImpl::advance(unsigned long count,
+                                       WebIDBCallbacks* callbacks_ptr,
+                                       WebExceptionCode& ec) {
+  IndexedDBDispatcher* dispatcher =
+      IndexedDBDispatcher::ThreadSpecificInstance();
+  scoped_ptr<WebIDBCallbacks> callbacks(callbacks_ptr);
+  ResetPrefetchCache();
+  dispatcher->RequestIDBCursorAdvance(count, callbacks.release(),
+                                      idb_cursor_id_, &ec);
+}
+
 void RendererWebIDBCursorImpl::continueFunction(const WebIDBKey& key,
                                                 WebIDBCallbacks* callbacks_ptr,
                                                 WebExceptionCode& ec) {