diff options
| -rw-r--r-- | content/browser/webui/web_ui.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/content/browser/webui/web_ui.cc b/content/browser/webui/web_ui.cc index 065ab3b..fe0f984 100644 --- a/content/browser/webui/web_ui.cc +++ b/content/browser/webui/web_ui.cc @@ -168,6 +168,7 @@ void WebUI::RegisterMessageCallback(const std::string &message, // WebUI, protected: ---------------------------------------------------------- void WebUI::AddMessageHandler(WebUIMessageHandler* handler) { + DCHECK(!handler->web_ui()); handler->set_web_ui(this); handler->RegisterMessages(); handlers_.push_back(handler); |