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

ppapi/tests/test_video_decoder.cc

Index: ppapi/tests/test_video_decoder.cc
diff --git a/ppapi/tests/test_video_decoder.cc b/ppapi/tests/test_video_decoder.cc
index 9b9d9656bb1c6c1c0d0c5d5ef12e95a99b652823..0be8d951069547ede7bf69ff336b9e7bfd54b731 100644
--- a/ppapi/tests/test_video_decoder.cc
+++ b/ppapi/tests/test_video_decoder.cc
@@ -28,7 +28,7 @@ void TestVideoDecoder::QuitMessageLoop() {
 
 std::string TestVideoDecoder::TestCreateFailure() {
   PP_Resource decoder = video_decoder_interface_->Create(
-      instance_->pp_instance(), 0, NULL);
+      instance_->pp_instance(), 0, static_cast<PP_VideoDecoder_Profile>(-1));
   if (decoder != 0)
     return "Create: error detecting invalid context & configs";