Pepper: add PPB_VideoEncoder interface

ppapi/thunk/ppb_video_encoder_api.h

Index: ppapi/thunk/ppb_video_encoder_api.h
diff --git a/ppapi/thunk/ppb_video_encoder_api.h b/ppapi/thunk/ppb_video_encoder_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..5283dce020ed91894a64ea0e3e41c814f1fb661b
--- /dev/null
+++ b/ppapi/thunk/ppb_video_encoder_api.h
@@ -0,0 +1,36 @@
+// Copyright 2014 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_VIDEO_ENCODER_API_H_
+#define PPAPI_THUNK_VIDEO_ENCODER_API_H_
+
+#include "base/memory/ref_counted.h"
+#include "ppapi/c/ppb_video_encoder.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
+
+namespace ppapi {
+
+class TrackedCallback;
+
+namespace thunk {
+
+class PPAPI_THUNK_EXPORT PPB_VideoEncoder_API {
+ public:
+  virtual ~PPB_VideoEncoder_API() {}
+
+  virtual int32_t Initialize(PP_Resource graphics_context,
+                             const struct PP_VideoEncoderParams* params,
+                             void* user_data,
+                             PPB_VideoEncoder_Ready_Func callback) = 0;
+  virtual int32_t Encode(uint32_t encode_id,
+                         const PP_VideoEncoderPicture *picture,
+                         PP_Bool force_keyframe,
+                         scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t Reset(scoped_refptr<TrackedCallback> callback) = 0;
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_VIDEO_ENCODER_API_H_