Plumb extra_data() to VideoDecodeAccelerator

ppapi/api/dev/ppb_video_decoder_dev.idl

Index: ppapi/api/dev/ppb_video_decoder_dev.idl
diff --git a/ppapi/api/dev/ppb_video_decoder_dev.idl b/ppapi/api/dev/ppb_video_decoder_dev.idl
index 5b1a94eaa1dbe88dff1f7a8bb8e013e4e1f64b52..bf41c4ffe843984f5913fcbc0a2e76c4a68247a6 100644
--- a/ppapi/api/dev/ppb_video_decoder_dev.idl
+++ b/ppapi/api/dev/ppb_video_decoder_dev.idl
@@ -7,7 +7,7 @@
  * This file defines the <code>PPB_VideoDecoder_Dev</code> interface.
  */
 label Chrome {
-  M14 = 0.16
+  M21 = 0.17
 };
 
 /**
@@ -37,13 +37,22 @@ interface PPB_VideoDecoder_Dev {
    *   |instance| pointer to the plugin instance.
    *   |context| a PPB_Graphics3D resource in which decoding will happen.
    *   |profile| the video stream's format profile.
+   *   |frame_size| the width and height of the video frame. This parameter is
+   *   optional and can be set to 0,0.
+   *   |extra_data| is the byte data required to initialize video decoders, for
+   *   example the H.264 AAVC data. This parameter is optional and can be set
+   *   to an empty array.
+   *   |extra_data_size| the size of the extra_data array.
    *
    * The created decoder is returned as PP_Resource. 0 means failure.
    */
   PP_Resource Create(
       [in] PP_Instance instance,
       [in] PP_Resource context,
-      [in] PP_VideoDecoder_Profile profile);
+      [in] PP_VideoDecoder_Profile profile,
+      [in] PP_Size frame_size,
+      [in, size_as=extra_data_size] uint8_t[] extra_data,
+      [in] uint32_t extra_data_size);
 
   /**
    * Tests whether |resource| is a video decoder created through Create