diff -r 000000000000 -r 6474c204b198 content/media/webrtc/LoadManager.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/webrtc/LoadManager.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _LOADMANAGER_H_
+#define _LOADMANAGER_H_
+
+#include "LoadMonitor.h"
+#include "webrtc/common_types.h"
+#include "webrtc/video_engine/include/vie_base.h"
+#include "mozilla/TimeStamp.h"
+#include "nsTArray.h"
+
+extern PRLogModuleInfo *gLoadManagerLog;
+
+namespace mozilla {
+
+class LoadManager : public LoadNotificationCallback,
+                    public webrtc::CPULoadStateCallbackInvoker,
+                    public webrtc::CpuOveruseObserver
+{
+public:
+    LoadManager(int aLoadMeasurementInterval,
+                int aAveragingMeasurements,
+                float aHighLoadThreshold,
+                float aLowLoadThreshold);
+    ~LoadManager();
+
+    // LoadNotificationCallback interface
+    virtual void LoadChanged(float aSystemLoad, float aProcessLoad) MOZ_OVERRIDE;
+    // CpuOveruseObserver interface
+    // Called as soon as an overuse is detected.
+    virtual void OveruseDetected() MOZ_OVERRIDE;
+    // Called periodically when the system is not overused any longer.
+    virtual void NormalUsage() MOZ_OVERRIDE;
+    // CPULoadStateCallbackInvoker interface
+    virtual void AddObserver(webrtc::CPULoadStateObserver * aObserver) MOZ_OVERRIDE;
+    virtual void RemoveObserver(webrtc::CPULoadStateObserver * aObserver) MOZ_OVERRIDE;
+
+private:
+    void LoadHasChanged();
+
+    nsRefPtr<LoadMonitor> mLoadMonitor;
+    float mLoadSum;
+    int   mLoadSumMeasurements;
+    // Set when overuse was signaled to us, and hasn't been un-signaled yet.
+    bool  mOveruseActive;
+    // Load measurement settings
+    int mLoadMeasurementInterval;
+    int mAveragingMeasurements;
+    float mHighLoadThreshold;
+    float mLowLoadThreshold;
+
+    webrtc::CPULoadState mCurrentState;
+
+    nsTArray<webrtc::CPULoadStateObserver*> mObservers;
+};
+
+} //namespace
+
+#endif /* _LOADMANAGER_H_ */