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diff --git a/webkit/glue/media/web_data_source.h b/webkit/glue/media/web_data_source.h
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+++ b/webkit/glue/media/web_data_source.h
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+// Copyright (c) 2010 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 WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_
+#define WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_
+
+#include "media/base/filters.h"
+
+namespace webkit_glue {
+
+// An interface that allows WebMediaPlayerImpl::Proxy to communicate with the
+// DataSource in the pipeline.
+class WebDataSource : public media::DataSource {
+ public:
+  WebDataSource();
+  virtual ~WebDataSource();
+
+  // This method is used to unblock any read calls that would cause the
+  // media pipeline to stall.
+  //
+  // Method called on the render thread.
+  virtual void Abort() = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WebDataSource);
+};
+
+}  // namespace webkit_glue
+
+#endif  // WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_