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mojo/services/network/network_service_delegate_observer.h

Index: mojo/services/network/network_service_delegate_observer.h
diff --git a/mojo/services/network/network_service_delegate_observer.h b/mojo/services/network/network_service_delegate_observer.h
new file mode 100644
index 0000000000000000000000000000000000000000..d205b674eececf8b848a31d7d66e7a798de04d70
--- /dev/null
+++ b/mojo/services/network/network_service_delegate_observer.h
@@ -0,0 +1,24 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_SERVICES_NETWORK_NETWORK_SERVICE_DELEGATE_OBSERVER_H_
+#define MOJO_SERVICES_NETWORK_NETWORK_SERVICE_DELEGATE_OBSERVER_H_
+
+namespace mojo {
+
+// Observer of events on from the NetworkServiceDelegate.
+//
+// Observers should be registered on the main thread.
+class NetworkServiceDelegateObserver {
+ public:
+  ~NetworkServiceDelegateObserver() {}
+
+  // Broadcast right before we attempt to shutdown the IO worker thread. This
+  // is
+  virtual void OnIOWorkerThreadShutdown() = 0;

[jam, 2015/07/13 15:48:33]

are we expecting more methods on this interface? if not, a callback seems
simpler..

[Elliot Glaysher, 2015/07/13 18:01:41]

(talked about this in person; we need to keep track of observers to remove
them.)

+};
+
+}  // namespace mojo
+
+#endif  // MOJO_SERVICES_NETWORK_NETWORK_SERVICE_DELEGATE_OBSERVER_H_