CHECK that URLRequestJobs are not orphaned while blocked by extensions.

net/base/network_delegate.h

Index: net/base/network_delegate.h
diff --git a/net/base/network_delegate.h b/net/base/network_delegate.h
index 715d894371c57a6ea668c29583d7815b031d8354..3a29e26c9f7695a2b7a83fe59bb73f695c6ebf97 100644
--- a/net/base/network_delegate.h
+++ b/net/base/network_delegate.h
@@ -91,6 +91,7 @@ class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
                                   int64_t bytes_received);
   void NotifyCompleted(URLRequest* request, bool started);
   void NotifyURLRequestDestroyed(URLRequest* request);
+  void NotifyURLRequestJobOrphaned(URLRequest* request);
   void NotifyPACScriptError(int line_number, const base::string16& error);
   AuthRequiredResponse NotifyAuthRequired(URLRequest* request,
                                           const AuthChallengeInfo& auth_info,
@@ -222,6 +223,13 @@ class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
   // a virtual method call.
   virtual void OnURLRequestDestroyed(URLRequest* request) = 0;
 
+  // Called when the current job for |request| is orphaned. This is a temporary
+  // callback to diagnose https://crbug.com/289715 and may not be used for other
+  // purposes. Note that it may be called after OnURLRequestDestroyed.
+  //
+  // TODO(davidben): Remove this once data has been gathered.
+  virtual void OnURLRequestJobOrphaned(URLRequest* request) = 0;
+
   // Corresponds to ProxyResolverJSBindings::OnError.
   virtual void OnPACScriptError(int line_number,
                                 const base::string16& error) = 0;