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diff --git a/WebCore/webaudio/AudioContext.idl b/WebCore/webaudio/AudioContext.idl
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+/*
+ * Copyright (C) 2010 Google 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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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.
+ */
+
+module webaudio {
+    interface [
+        Conditional=WEB_AUDIO,
+        CanBeConstructed,
+        CustomConstructFunction,
+        V8CustomConstructor
+    ] AudioContext {
+        // All rendered audio ultimately connects to destination, which represents the audio hardware.
+        readonly attribute AudioDestinationNode destination;
+
+        // All scheduled times are relative to this time in seconds.
+        readonly attribute float currentTime;
+
+        // All AudioNodes in the context run at this sample-rate (in sample-frames per second).
+        readonly attribute float sampleRate;
+
+        // All panning is relative to this listener.
+        readonly attribute AudioListener listener;
+
+        AudioBuffer createBuffer(in unsigned long numberOfChannels, in unsigned long numberOfFrames, in float sampleRate);
+
+        // Source
+        AudioBufferSourceNode createBufferSource();
+
+        // Processing nodes
+        AudioGainNode createGainNode();
+        DelayNode createDelayNode();
+        LowPass2FilterNode createLowPass2Filter();
+        HighPass2FilterNode createHighPass2Filter();
+        AudioPannerNode createPanner();
+        ConvolverNode createConvolver();
+        RealtimeAnalyserNode createAnalyser();
+        JavaScriptAudioNode createJavaScriptNode(in unsigned long bufferSize);
+
+        // Channel splitting and merging
+        AudioChannelSplitter createChannelSplitter();
+        AudioChannelMerger createChannelMerger();
+
+        // FIXME: Temporary - to be replaced with XHR.
+        CachedAudio createAudioRequest(in DOMString url, in boolean mixToMono);
+    };
+}