Tracing for NavigationHandle lifetime and state.

chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h

Index: chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h
diff --git a/chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h b/chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h
index 8bf52681856f4e1e746c6b57e8d9695e9e630a2f..5a6d97391f5bab79873ff3aafd6768a4fe443b40 100644
--- a/chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h
+++ b/chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h
@@ -103,6 +103,9 @@ class ArcNavigationThrottle : public content::NavigationThrottle {
   static size_t FindPreferredAppForTesting(
       const std::vector<mojom::IntentHandlerInfoPtr>& handlers);
 
+  // content::Navigation implementation:
+  const char* GetNameForLogging() override;
+
  private:
   // content::Navigation implementation:
   NavigationThrottle::ThrottleCheckResult WillStartRequest() override;