PPB_VideoDecoder_Dev::Initialize is now synchronous!

ppapi/cpp/dev/video_decoder_dev.cc

Index: ppapi/cpp/dev/video_decoder_dev.cc
diff --git a/ppapi/cpp/dev/video_decoder_dev.cc b/ppapi/cpp/dev/video_decoder_dev.cc
index 5f8ce40ea4f64fc0388716727068a12d750e2ffd..a5994812538d913ac4261efa74928c402c50e4cf 100644
--- a/ppapi/cpp/dev/video_decoder_dev.cc
+++ b/ppapi/cpp/dev/video_decoder_dev.cc
@@ -38,13 +38,11 @@ VideoDecoder_Dev::~VideoDecoder_Dev() {
 
 
 int32_t VideoDecoder_Dev::Initialize(const PP_VideoConfigElement* config,
-                                     const Context3D_Dev& context,
-                                     CompletionCallback callback) {
+                                     const Context3D_Dev& context) {
   if (!has_interface<PPB_VideoDecoder_Dev>())
-    return callback.MayForce(PP_ERROR_NOINTERFACE);
+    return PP_ERROR_NOINTERFACE;
   return get_interface<PPB_VideoDecoder_Dev>()->Initialize(
-      pp_resource(), context.pp_resource(), config,
-      callback.pp_completion_callback());
+      pp_resource(), context.pp_resource(), config);
 }
 
 void VideoDecoder_Dev::AssignPictureBuffers(