Add PP_VideoFrame, PPB_VideoReader, and PPB_VideoWriter APIs to Pepper.

ppapi/cpp/video_frame.cc

Index: ppapi/cpp/video_frame.cc
diff --git a/ppapi/cpp/video_frame.cc b/ppapi/cpp/video_frame.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5092c5a332275397255df640ca97c70b9bc4a69e
--- /dev/null
+++ b/ppapi/cpp/video_frame.cc
@@ -0,0 +1,47 @@
+// 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.
+
+#include "ppapi/cpp/video_frame.h"
+
+namespace pp {
+
+// VideoFrame ------------------------------------------------------------------
+
+VideoFrame::VideoFrame()
+    : video_frame_() {
+  video_frame_.image_data = image_data_.pp_resource();
+}
+
+VideoFrame::VideoFrame(const ImageData& image_data, PP_TimeTicks timestamp)
+    : image_data_(image_data), video_frame_() {
+  video_frame_.timestamp = timestamp;
+  video_frame_.image_data = image_data_.pp_resource();
+}
+
+VideoFrame::VideoFrame(PassRef, const PP_VideoFrame& pp_video_frame)
+    : video_frame_(pp_video_frame) {
+  // Take over the image_data resource in the frame.
+  image_data_ = ImageData(PASS_REF, video_frame_.image_data);
+}
+
+VideoFrame::VideoFrame(const VideoFrame& other)
+    : video_frame_() {
+  set_image_data(other.image_data());
+  set_timestamp(other.timestamp());
+}
+
+VideoFrame::~VideoFrame() {
+}
+
+VideoFrame& VideoFrame::operator=(const VideoFrame& other) {
+  if (this == &other)
+    return *this;
+
+  set_image_data(other.image_data());
+  set_timestamp(other.timestamp());
+
+  return *this;
+}
+
+}  // namespace pp