| Index: content/browser/devtools/protocol/network_handler.h | 
| diff --git a/content/browser/devtools/protocol/network_handler.h b/content/browser/devtools/protocol/network_handler.h | 
| index 2ce9dcb1c3d698b12acc21478b1969e0429c26bf..76979f76541fcd89d503199b6d08b3df55e2e96a 100644 | 
| --- a/content/browser/devtools/protocol/network_handler.h | 
| +++ b/content/browser/devtools/protocol/network_handler.h | 
| @@ -71,6 +71,9 @@ class NetworkHandler : public DevToolsDomainHandler, | 
| void NavigationPreloadCompleted( | 
| const std::string& request_id, | 
| const ResourceRequestCompletionStatus& completion_status); | 
| +  void NavigationFailed(const std::string& request_id, | 
| +                        const std::string& error_string, | 
| +                        bool cancelled); | 
|  | 
| bool enabled() const { return enabled_; } | 
| std::string UserAgentOverride() const; | 
|  |