fixed compilation errors on windows code.

src/core/iomgr/socket_windows.c

@@ -39,7 +39,6 @@
 #include <grpc/support/log.h>
 
 #include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/iomgr.h"
 #include "src/core/iomgr/iomgr_internal.h"
 #include "src/core/iomgr/pollset.h"
 #include "src/core/iomgr/pollset_windows.h"
@@ -64,15 +63,15 @@ int grpc_winsocket_shutdown(grpc_winsocket *socket) {
   gpr_mu_lock(&socket->state_mu);
   if (socket->read_info.cb) {
     callbacks_set++;
-    grpc_iomgr_closure_init(&socket->shutdown_iocb, socket->read_info.cb,
+    grpc_iomgr_closure_init(&socket->shutdown_closure, socket->read_info.cb,
                             socket->read_info.opaque);
-    grpc_iomgr_add_delayed_callback(socket->shutdown_iocb, 0);
+    grpc_iomgr_add_delayed_callback(&socket->shutdown_closure, 0);
   }
   if (socket->write_info.cb) {
     callbacks_set++;
-    grpc_iomgr_closure_init(&socket->shutdown_iocb, socket->write_info.cb,
+    grpc_iomgr_closure_init(&socket->shutdown_closure, socket->write_info.cb,
                             socket->write_info.opaque);
-    grpc_iomgr_add_delayed_callback(socket->shutdown_iocb, 0);
+    grpc_iomgr_add_delayed_callback(&socket->shutdown_closure, 0);
   }
   gpr_mu_unlock(&socket->state_mu);
   return callbacks_set;

src/core/iomgr/socket_windows.h

@@ -39,6 +39,8 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/atm.h>
 
+#include "src/core/iomgr/iomgr.h"
+
 /* This holds the data for an outstanding read or write on a socket.
    The mutex to protect the concurrent access to that data is the one
    inside the winsocket wrapper. */
@@ -94,7 +96,7 @@ typedef struct grpc_winsocket {
      wait for. The socket will be collected at that time. */
   int orphan;
 
-  grpc_iomgr_closure shutdown_iocb;
+  grpc_iomgr_closure shutdown_closure;
 } grpc_winsocket;
 
 /* Create a wrapped windows handle. This takes ownership of it, meaning that