add pepper video decoder glue and delegate

webkit/glue/plugins/pepper_video_decoder.h

+// 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_PLUGINS_PEPPER_VIDEO_DECODER_H_
+#define WEBKIT_GLUE_PLUGINS_PEPPER_VIDEO_DECODER_H_
+
+#include <queue>
+
+#include "base/scoped_ptr.h"
+#include "third_party/ppapi/c/pp_video.h"
+#include "third_party/ppapi/c/ppb_video_decoder.h"
+#include "webkit/glue/plugins/pepper_plugin_delegate.h"
+#include "webkit/glue/plugins/pepper_resource.h"
+
+namespace pepper {
+
+class PluginInstance;
+
+class VideoDecoder : public Resource {
+ public:
+  VideoDecoder(PluginInstance* instance);
+  virtual ~VideoDecoder();
+
+  // Returns a pointer to the interface implementing PPB_VideoDecoder that is
+  // exposed to the plugin.
+  static const PPB_VideoDecoder* GetInterface();
+
+  // Resource overrides.
+  VideoDecoder* AsVideoDecoder() { return this; }
+
+  PluginInstance* instance() { return instance_.get(); }
+
+  // PPB_VideoDecoder implementation.
+  bool Init(const PP_VideoDecoderConfig& decoder_config);
+  bool Decode(PP_VideoCompressedDataBuffer& input_buffer);
+  int32_t Flush(PP_CompletionCallback& callback);
+  bool ReturnUncompressedDataBuffer(PP_VideoUncompressedDataBuffer& buffer);
+
+ private:
+  // This is NULL before initialization, and if this VideoDecoder is
+  // swapped with another.
+  scoped_ptr<PluginDelegate::PlatformVideoDecoder> platform_video_decoder_;
+  scoped_refptr<PluginInstance> instance_;
+};
+
+}  // namespace pepper
+
+#endif  // WEBKIT_GLUE_PLUGINS_PEPPER_VIDEO_DECODER_H_