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      1 // Copyright (c) 2012 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 SYNC_TEST_SESSIONS_TEST_SCOPED_SESSION_EVENT_LISTENER_H_
      6 #define SYNC_TEST_SESSIONS_TEST_SCOPED_SESSION_EVENT_LISTENER_H_
      7 
      8 #include "sync/sessions/sync_session_context.h"
      9 
     10 namespace syncer {
     11 namespace sessions {
     12 
     13 // Installs a SyncEventListener to a given session context for the lifetime of
     14 // the TestScopedSessionEventListener.
     15 class TestScopedSessionEventListener {
     16  public:
     17   TestScopedSessionEventListener(
     18       SyncSessionContext* context,
     19       SyncEngineEventListener* listener)
     20     : context_(context), listener_(listener) {
     21       context->listeners_.AddObserver(listener);
     22   }
     23   ~TestScopedSessionEventListener() {
     24     context_->listeners_.RemoveObserver(listener_);
     25   }
     26  private:
     27   SyncSessionContext* context_;
     28   SyncEngineEventListener* listener_;
     29   DISALLOW_COPY_AND_ASSIGN(TestScopedSessionEventListener);
     30 };
     31 
     32 }  // namespace sessions
     33 }  // namespace syncer
     34 
     35 #endif  // SYNC_TEST_SESSIONS_TEST_SCOPED_SESSION_EVENT_LISTENER_H_
     36