Move talk/app/webrtc to webrtc/api

talk/app/webrtc/notifier.h

-/*
- * libjingle
- * Copyright 2011 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef TALK_APP_WEBRTC_NOTIFIER_H_
-#define TALK_APP_WEBRTC_NOTIFIER_H_
-
-#include <list>
-
-#include "talk/app/webrtc/mediastreaminterface.h"
-#include "webrtc/base/common.h"
-
-namespace webrtc {
-
-// Implement a template version of a notifier.
-template <class T>
-class Notifier : public T {
- public:
-  Notifier() {
-  }
-
-  virtual void RegisterObserver(ObserverInterface* observer) {
-    ASSERT(observer != NULL);
-    observers_.push_back(observer);
-  }
-
-  virtual void UnregisterObserver(ObserverInterface* observer) {
-    for (std::list<ObserverInterface*>::iterator it = observers_.begin();
-         it != observers_.end(); it++) {
-      if (*it == observer) {
-        observers_.erase(it);
-        break;
-      }
-    }
-  }
-
-  void FireOnChanged() {
-    // Copy the list of observers to avoid a crash if the observer object
-    // unregisters as a result of the OnChanged() call. If the same list is used
-    // UnregisterObserver will affect the list make the iterator invalid.
-    std::list<ObserverInterface*> observers = observers_;
-    for (std::list<ObserverInterface*>::iterator it = observers.begin();
-         it != observers.end(); ++it) {
-      (*it)->OnChanged();
-    }
-  }
-
- protected:
-  std::list<ObserverInterface*> observers_;
-};
-
-}  // namespace webrtc
-
-#endif  // TALK_APP_WEBRTC_NOTIFIER_H_