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diff --git a/content/browser/media/webrtc_internals.h b/content/browser/media/webrtc_internals.h
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--- a/content/browser/media/webrtc_internals.h
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-// Copyright (c) 2013 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 CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_
-#define CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_
-
-#include "base/memory/singleton.h"
-#include "base/observer_list.h"
-#include "base/process.h"
-#include "base/values.h"
-#include "content/common/content_export.h"
-
-struct PeerConnectionInfo;
-
-namespace content {
-
-class WebRTCInternalsUIObserver;
-
-// This is a singleton class running in the browser process.
-// It collects peer connection infomation from the renderers,
-// forwards the data to WebRTCInternalsUIObserver and
-// sends data collecting commands to the renderers.
-class CONTENT_EXPORT WebRTCInternals {
- public:
- static WebRTCInternals* GetInstance();
-
- // Methods called when peer connection status changes.
- void AddPeerConnection(base::ProcessId pid, const PeerConnectionInfo& info);
- void RemovePeerConnection(base::ProcessId pid, int lid);
-
- // Methods for adding or removing WebRTCInternalsUIObserver.
- void AddObserver(WebRTCInternalsUIObserver *observer);
- void RemoveObserver(WebRTCInternalsUIObserver *observer);
-
- private:
- friend struct DefaultSingletonTraits<WebRTCInternals>;
-
- WebRTCInternals();
- virtual ~WebRTCInternals();
-
- // Send updates to observers on UI thread.
- void SendUpdate(const std::string& command, base::Value* value);
-
- // Only the IO thread should access these fields.
- ObserverList<WebRTCInternalsUIObserver> observers_;
- base::ListValue peer_connection_data_;
-};
-
-} // namespace content
-
-#endif // CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_