| Index: chrome/browser/tracing/navigation_tracing.cc
 | 
| diff --git a/chrome/browser/tracing/navigation_tracing.cc b/chrome/browser/tracing/navigation_tracing.cc
 | 
| index e5c7332abe91b4b9ead83dd5fc91af70c5faf795..5b5bc5b7695d9ab70b0ae8655eac86316080a393 100644
 | 
| --- a/chrome/browser/tracing/navigation_tracing.cc
 | 
| +++ b/chrome/browser/tracing/navigation_tracing.cc
 | 
| @@ -114,7 +114,8 @@
 | 
|  void NavigationTracingObserver::DidStartProvisionalLoadForFrame(
 | 
|      content::RenderFrameHost* render_frame_host,
 | 
|      const GURL& validated_url,
 | 
| -    bool is_error_page) {
 | 
| +    bool is_error_page,
 | 
| +    bool is_iframe_srcdoc) {
 | 
|    if (!render_frame_host->GetParent() && !is_error_page) {
 | 
|      content::BackgroundTracingManager::GetInstance()->TriggerNamedEvent(
 | 
|          navigation_handle,
 | 
| 
 |