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diff --git a/Source/WebCore/page/MediaProducer.h b/Source/WebCore/page/MediaProducer.h
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+/*
+ * Copyright (C) 2014 Apple Inc. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR
+ * CONTRIBUTORS 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.
+ */
+
+#pragma once
+
+namespace WebCore {
+
+class MediaProducer {
+public:
+    enum MediaState {
+        IsNotPlaying = 0,
+        IsPlayingAudio = 1 << 0,
+        IsPlayingVideo = 1 << 1,
+        IsPlayingToExternalDevice = 1 << 2,
+        RequiresPlaybackTargetMonitoring = 1 << 3,
+        ExternalDeviceAutoPlayCandidate = 1 << 4,
+        DidPlayToEnd = 1 << 5,
+        IsSourceElementPlaying = 1 << 6,
+        IsNextTrackControlEnabled = 1 << 7,
+        IsPreviousTrackControlEnabled = 1 << 8,
+        HasPlaybackTargetAvailabilityListener = 1 << 9,
+        HasAudioOrVideo = 1 << 10,
+        HasActiveAudioCaptureDevice = 1 << 11,
+        HasActiveVideoCaptureDevice = 1 << 12,
+    };
+    typedef unsigned MediaStateFlags;
+
+    virtual MediaStateFlags mediaState() const = 0;
+
+    enum MutedState {
+        NoneMuted = 0,
+        AudioIsMuted = 1 << 0,
+        CaptureDevicesAreMuted = 1 << 1,
+    };
+    typedef unsigned MutedStateFlags;
+
+    virtual void pageMutedStateDidChange() = 0;
+
+protected:
+    virtual ~MediaProducer() { }
+};
+
+} // namespace WebCore