diff -r 000000000000 -r 6474c204b198 content/media/webaudio/blink/DirectConvolver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/webaudio/blink/DirectConvolver.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2012 Intel 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.
+ */
+
+#ifndef DirectConvolver_h
+#define DirectConvolver_h
+
+#include "nsTArray.h"
+#include "mozilla/MemoryReporting.h"
+
+namespace WebCore {
+
+class DirectConvolver {
+public:
+    DirectConvolver(size_t inputBlockSize);
+
+    void process(const nsTArray<float>* convolutionKernel, const float* sourceP, float* destP, size_t framesToProcess);
+
+    void reset();
+
+    size_t sizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
+    {
+        size_t amount = aMallocSizeOf(this);
+        amount += m_buffer.SizeOfExcludingThis(aMallocSizeOf);
+        return amount;
+    }
+
+
+private:
+    size_t m_inputBlockSize;
+
+    nsTArray<float> m_buffer;
+};
+
+} // namespace WebCore
+
+#endif // DirectConvolver_h