[NaCl SDK] ppapi_simple: Allow initial terminal size to to be set on startup.

native_client_sdk/src/libraries/nacl_io/mount_node_tty.cc

Index: native_client_sdk/src/libraries/nacl_io/mount_node_tty.cc
diff --git a/native_client_sdk/src/libraries/nacl_io/mount_node_tty.cc b/native_client_sdk/src/libraries/nacl_io/mount_node_tty.cc
index af9b7543a1637684f46f26267246daad9fe672d1..6b8fb66877134d19067d5b4f5fe4e600262ba66c 100644
--- a/native_client_sdk/src/libraries/nacl_io/mount_node_tty.cc
+++ b/native_client_sdk/src/libraries/nacl_io/mount_node_tty.cc
@@ -257,6 +257,8 @@ Error MountNodeTty::VIoctl(int request, va_list args) {
       struct winsize* size = va_arg(args, struct winsize*);
       {
         AUTO_LOCK(node_lock_);
+        if (rows_ == size->ws_row && cols_ == size->ws_col)
+          return 0;
         rows_ = size->ws_row;
         cols_ = size->ws_col;
       }