[NaCl SDK] nacl_io: fix TTY warning messages when using naclterm/hterm.

Passing strings rather than arraybuffers to the tty node is still
the only supported way to go, so don't warn about this method
being depreceated just yet :)

R=binji@chromium.org, binji

Review URL: https://codereview.chromium.org/318153004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@275611 0039d316-1c4b-4281-b951-d872f2087c98

native_client_sdk/src/libraries/nacl_io/log.h

@@ -19,6 +19,9 @@
 #define LOG_ERROR(format, ...) \
   nacl_io_log(LOG_PREFIX "error: " format "\n", ##__VA_ARGS__)
 
+#define LOG_WARN(format, ...) \
+  nacl_io_log(LOG_PREFIX "warning: " format "\n", ##__VA_ARGS__)
+
 EXTERN_C_BEGIN
 
 /*

native_client_sdk/src/libraries/ppapi_simple/ps_instance.cc

@@ -409,12 +409,8 @@ void PSInstance::MessageHandlerInput(const pp::Var& key,
                                      const pp::Var& message) {
   std::string key_string = key.AsString();
 
-  // Legacy support for passing TTY data as a string, rather than a array
-  // buffer. TODO(sbc): remove this in a future release.
   if (message.is_string() && key_string == tty_prefix_) {
     std::string buffer = message.AsString();
-    Warn("Passing TTY input as a string is deprected.  Please use a "
-         "JavaScript ArrayBuffer instead");
 
     // Since our message may contain null characters, we can't send it as a
     // naked C string, so we package it up in this struct before sending it
@@ -422,11 +418,11 @@ void PSInstance::MessageHandlerInput(const pp::Var& key,
     struct tioc_nacl_input_string ioctl_message;
     ioctl_message.length = buffer.size();
     ioctl_message.buffer = buffer.c_str();
-    int ret =
-      ioctl(tty_fd_, TIOCNACLINPUT, &ioctl_message);
+    int ret = ioctl(tty_fd_, TIOCNACLINPUT, &ioctl_message);
     if (ret != 0 && errno != ENOTTY) {
       Error("ioctl returned unexpected error: %d.\n", ret);
     }
+    return;
   }
 
   if (!message.is_array_buffer()) {
@@ -532,12 +528,12 @@ void PSInstance::PostEvent(PSEventType type, const PP_Var& var) {
   // Legacy support for passing TTY input as a string <prefix>:<payload>
   // TODO(sbc): remove this in a future release.
   if (tty_fd_ >= 0 && event.is_string()) {
-    Warn("passing TTY data using a string prefix is deprected."
-         " Use a JavaScript dictionary instead.");
     std::string message = event.AsString();
     size_t prefix_len = strlen(tty_prefix_);
     if (message.size() > prefix_len) {
       if (!strncmp(message.c_str(), tty_prefix_, prefix_len)) {
+        LOG_WARN("Passing TTY data using a string prefix is deprecated. "
+                 "Use a JavaScript dictionary instead.");
         MessageHandlerInput(pp::Var(message.substr(0, prefix_len)),
                             pp::Var(message.substr(prefix_len)));
         return;