Pass decoded picture size from VDA to client

media/video/picture.h

 // Copyright (c) 2011 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 MEDIA_VIDEO_PICTURE_H_
 #define MEDIA_VIDEO_PICTURE_H_
 
 #include "base/basictypes.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "media/base/media_export.h"
@@ skipping 36 matching lines @@
   int32 id_;
   gfx::Size size_;
   uint32 texture_id_;
   gpu::Mailbox texture_mailbox_;
 };
 
 // A decoded picture frame.
 // This is the media-namespace equivalent of PP_Picture_Dev.
 class MEDIA_EXPORT Picture {
  public:
-  Picture(int32 picture_buffer_id, int32 bitstream_buffer_id);
+  Picture(int32 picture_buffer_id,
+          int32 bitstream_buffer_id,
+          const gfx::Size& size);
 
   // Returns the id of the picture buffer where this picture is contained.
   int32 picture_buffer_id() const {
     return picture_buffer_id_;
   }
 
   // Returns the id of the bitstream buffer from which this frame was decoded.
   int32 bitstream_buffer_id() const {
     return bitstream_buffer_id_;
   }
 
   void set_bitstream_buffer_id(int32 bitstream_buffer_id) {
     bitstream_buffer_id_ = bitstream_buffer_id;
   }
 
+  // Returns the size of the picture. This size may be smaller than the
+  // size of the PictureBuffer, as it is the visible size of the
+  // Picture contained in the PictureBuffer.

[Ken Russell (switch to Gerrit), 2014/08/15 22:59:26]

It's probably worth documenting how the picture is aligned within the
PictureBuffer if it's smaller than it -- i.e., upper left or lower left.

[kcwu, 2014/08/18 07:02:04]

Done.

+  gfx::Size size() const { return size_; }
+
  private:
   int32 picture_buffer_id_;
   int32 bitstream_buffer_id_;
+  gfx::Size size_;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_PICTURE_H_