Add Pepper VideoReader and VideoWriter plumbing

ppapi/thunk/ppb_video_destination_private_api.h

Index: ppapi/thunk/ppb_video_destination_private_api.h
diff --git a/ppapi/thunk/ppb_video_destination_private_api.h b/ppapi/thunk/ppb_video_destination_private_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..08853fadb037eb23b2b4f3f7ee33c5f88d9afc93
--- /dev/null
+++ b/ppapi/thunk/ppb_video_destination_private_api.h
@@ -0,0 +1,32 @@
+// Copyright (c) 2013 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 PPAPI_THUNK_PPB_VIDEO_DESTINATION_PRIVATE_API_H_
+#define PPAPI_THUNK_PPB_VIDEO_DESTINATION_PRIVATE_API_H_
+
+#include "base/memory/ref_counted.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
+
+struct PP_VideoFrame_Private;
+
+namespace ppapi {
+
+class TrackedCallback;
+
+namespace thunk {
+
+class PPAPI_THUNK_EXPORT PPB_VideoDestination_Private_API {
+ public:
+  virtual ~PPB_VideoDestination_Private_API() {}
+
+  virtual int32_t Open(PP_Var stream_url,

[yzshen1, 2013/05/01 23:18:33]

nit: please use const &

[bbudge, 2013/05/02 21:39:06]

Done.

+                       scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t PutFrame(const PP_VideoFrame_Private& frame) = 0;
+  virtual void Close() = 0;
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_PPB_VIDEO_DESTINATION_PRIVATE_API_H_