PPAPI: Make blocking completion callbacks work.

ppapi/thunk/ppb_transport_thunk.cc

Index: ppapi/thunk/ppb_transport_thunk.cc
diff --git a/ppapi/thunk/ppb_transport_thunk.cc b/ppapi/thunk/ppb_transport_thunk.cc
index 31266e89879c675c6f61e3fd799d484a878f6501..e41068d79a660ba30046c4ee6e50d13a4c2f9305 100644
--- a/ppapi/thunk/ppb_transport_thunk.cc
+++ b/ppapi/thunk/ppb_transport_thunk.cc
@@ -48,7 +48,7 @@ int32_t Connect(PP_Resource transport, PP_CompletionCallback callback) {
   EnterTransport enter(transport, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->Connect(callback));
+  return enter.SetResult(enter.object()->Connect(enter.callback()));
 }
 
 int32_t GetNextAddress(PP_Resource transport, PP_Var* address,
@@ -56,7 +56,8 @@ int32_t GetNextAddress(PP_Resource transport, PP_Var* address,
   EnterTransport enter(transport, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->GetNextAddress(address, callback));
+  return enter.SetResult(enter.object()->GetNextAddress(address,
+                                                        enter.callback()));
 }
 
 int32_t ReceiveRemoteAddress(PP_Resource transport, PP_Var address) {
@@ -71,7 +72,7 @@ int32_t Recv(PP_Resource transport, void* data, uint32_t len,
   EnterTransport enter(transport, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->Recv(data, len, callback));
+  return enter.SetResult(enter.object()->Recv(data, len, enter.callback()));
 }
 
 int32_t Send(PP_Resource transport, const void* data, uint32_t len,
@@ -79,7 +80,7 @@ int32_t Send(PP_Resource transport, const void* data, uint32_t len,
   EnterTransport enter(transport, callback, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->Send(data, len, callback));
+  return enter.SetResult(enter.object()->Send(data, len, enter.callback()));
 }
 
 int32_t Close(PP_Resource transport) {