net/url_request/url_request_context_getter_observer.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_OBSERVER_H_
   6 #define NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_OBSERVER_H_
   7
   8 #include "base/macros.h"
   9 #include "net/base/net_export.h"
  10
  11 namespace net {
  12 class URLRequestContextGetter;
  13
  14 // Interface for watching when a URLRequestContext associated with a
  15 // URLRequestContextGetter is shutting down.
  16 class NET_EXPORT URLRequestContextGetterObserver {
  17  public:
  18   URLRequestContextGetterObserver() {}
  19
  20   // Called before the URLRequestContext shuts down. When called, the Getter's
  21   // GetURLRequestContext method must return NULL to protected against
  22   // re-entrancy, but the Context must still be valid and GetNetworkTaskRunner()
  23   // must return the thread it lives on. Called on the network thread.
  24   virtual void OnContextShuttingDown() = 0;
  25
  26  protected:
  27   virtual ~URLRequestContextGetterObserver() {}
  28
  29  private:
  30   DISALLOW_COPY_AND_ASSIGN(URLRequestContextGetterObserver);
  31 };
  32
  33 }  // namespace net
  34
  35 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_OBSERVER_H_