Implement serial API for Windows.

chrome/browser/extensions/api/serial/serial_connection_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/serial/serial_connection.h"
 
 #include <string>
+#include <windows.h>
 
 namespace extensions {
 
-SerialConnection::SerialConnection(const std::string& port,
-                                   APIResourceEventNotifier* event_notifier)
-    : APIResource(APIResource::SerialConnectionResource, event_notifier),
-      port_(port), fd_(0) {
-}
+bool SerialConnection::PostOpen() {
+  // Set timeouts so that reads return immediately with whatever could be read
+  // without blocking.
+  COMMTIMEOUTS timeouts = { 0 };
+  timeouts.ReadIntervalTimeout = MAXDWORD;
+  if (!::SetCommTimeouts(file_, &timeouts))
+    return false;
 
-SerialConnection::~SerialConnection() {
-}
+  DCB dcb = { 0 };
+  dcb.DCBlength = sizeof(dcb);
+  if (!GetCommState(file_, &dcb))
+    return false;
 
-bool SerialConnection::Open() {
-  // TODO(miket): implement
-  return false;
-}
+  // TODO(miket): when we have a bit rate API, use it.
+  dcb.BaudRate = CBR_57600;
+  dcb.ByteSize = 8;
+  dcb.StopBits = ONESTOPBIT;
+  dcb.Parity = NOPARITY;
+  if (!SetCommState(file_, &dcb))
+    return false;
 
-void SerialConnection::Close() {
-  // TODO(miket): implement
-}
-
-int SerialConnection::Read(uint8* byte) {
-  // TODO(miket): implement
-  return -1;
-}
-
-int SerialConnection::Write(scoped_refptr<net::IOBuffer> io_buffer,
-                            int byte_count) {
-  // TODO(miket): implement
-  return -1;
+  return true;
 }
 
 }  // namespace extensions