Replace the use of an int32* with a proper struct for decoder configuration.

ppapi/thunk/ppb_video_decoder_thunk.cc

Index: ppapi/thunk/ppb_video_decoder_thunk.cc
diff --git a/ppapi/thunk/ppb_video_decoder_thunk.cc b/ppapi/thunk/ppb_video_decoder_thunk.cc
index cb0485c8fde124862d195c0832be1606ef12f6b6..cd14fbb875245924c180ea96387e8d1e2ac36846 100644
--- a/ppapi/thunk/ppb_video_decoder_thunk.cc
+++ b/ppapi/thunk/ppb_video_decoder_thunk.cc
@@ -18,11 +18,11 @@ typedef EnterResource<PPB_VideoDecoder_API> EnterVideoDecoder;
 
 PP_Resource Create(PP_Instance instance,
                    PP_Resource context_3d,
-                   const PP_VideoConfigElement* config) {
+                   const PP_VideoDecoderConfig_Dev* config) {
   EnterFunction<ResourceCreationAPI> enter(instance, true);
   if (enter.failed())
     return 0;
-  return enter.functions()->CreateVideoDecoder(instance, context_3d, config);
+  return enter.functions()->CreateVideoDecoder(instance, context_3d, *config);
 }
 
 PP_Bool IsVideoDecoder(PP_Resource resource) {