Serial bitrate fix for linux

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

Index: chrome/browser/extensions/api/serial/serial_connection_posix.cc
===================================================================
--- chrome/browser/extensions/api/serial/serial_connection_posix.cc	(revision 183500)
+++ chrome/browser/extensions/api/serial/serial_connection_posix.cc	(working copy)
@@ -17,8 +17,88 @@
 
   // Bitrate (sometimes erroneously referred to as baud rate).
   if (bitrate_ >= 0) {
-    cfsetispeed(&options, bitrate_);
-    cfsetospeed(&options, bitrate_);
+    int bitrate_opt_;
+    switch (bitrate_) {
+      case 0:
+        bitrate_opt_ = B0;
+        break;
+      case 50:
+        bitrate_opt_ = B50;
+        break;
+      case 75:
+        bitrate_opt_ = B75;
+        break;
+      case 110:
+        bitrate_opt_ = B110;
+        break;
+      case 134:
+        bitrate_opt_ = B134;
+        break;
+      case 150:
+        bitrate_opt_ = B150;
+        break;
+      case 200:
+        bitrate_opt_ = B200;
+        break;
+      case 300:
+        bitrate_opt_ = B300;
+        break;
+      case 600:
+        bitrate_opt_ = B600;
+        break;
+      case 1200:
+        bitrate_opt_ = B1200;
+        break;
+      case 1800:
+        bitrate_opt_ = B1800;
+        break;
+      case 2400:
+        bitrate_opt_ = B2400;
+        break;
+      case 4800:
+        bitrate_opt_ = B4800;
+        break;
+      case 9600:
+        bitrate_opt_ = B9600;
+        break;
+      case 19200:
+        bitrate_opt_ = B19200;
+        break;
+      case 38400:
+        bitrate_opt_ = B38400;
+        break;
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+      case 57600:
+        bitrate_opt_ = B57600;
+        break;
+      case 115200:
+        bitrate_opt_ = B115200;
+        break;
+      case 230400:
+        bitrate_opt_ = B230400;
+        break;
+      case 460800:
+        bitrate_opt_ = B460800;
+        break;
+      case 576000:
+        bitrate_opt_ = B576000;
+        break;
+      case 921600:
+        bitrate_opt_ = B921600;
+        break;
+      default:
+        bitrate_opt_ = B9600;
+#else
+// MACOSX doesn't define constants bigger than 38400.
+// So if it is MACOSX and the value doesn't fit any of the defined constants
+// It will setup the bitrate with 'bitrate_' (just forwarding the value)
+      default:
+        bitrate_opt_ = bitrate_;
+#endif
+    }
+
+    cfsetispeed(&options, bitrate_opt_);
+    cfsetospeed(&options, bitrate_opt_);
   }
 
   // 8N1