Add bitrate option to serial API.

- Migrate more code over to the new-style argument parsing code.
- Fix some browser tests whose arguments didn't get updated with the socket.create() signature change.
- Change default to 9600 bps.
- Moved the sample Arduino sketch out of comments into a separate file.

BUG=120508
TEST=added
TBR=penghuang@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10694061

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@145684 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 22 insertions, 2 deletions

diff --git a/chrome/test/data/extensions/api_test/serial/api/background.js b/chrome/test/data/extensions/api_test/serial/api/background.js
index e241d56..76e9239 100644
--- a/chrome/test/data/extensions/api_test/serial/api/background.js
+++ b/chrome/test/data/extensions/api_test/serial/api/background.js
@@ -136,8 +136,11 @@ var testSerial = function() {
       }
       if (portNumber < ports.length) {
         serialPort = ports[portNumber];
-        console.log('Connecting to serial device at ' + serialPort);
-        chrome.experimental.serial.open(serialPort, onOpen);
+        var bitrate = 57600;
+        console.log('Connecting to serial device ' + serialPort + ' at ' +
+                    bitrate + ' bps.');
+        chrome.experimental.serial.open(serialPort, {bitrate: bitrate},
+                                        onOpen);
       } else {
         // We didn't find a port that we think we should try.
         chrome.test.succeed();
diff --git a/chrome/test/data/extensions/api_test/serial/api/serial_arduino_test.ino b/chrome/test/data/extensions/api_test/serial/api/serial_arduino_test.ino
new file mode 100644
index 0000000..5fcb894
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/serial/api/serial_arduino_test.ino
@@ -0,0 +1,17 @@
+// 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 <Arduino.h>
+
+// This Arduino sketch is used for manual testing with the browser test
+// SerialApiTest.SerialExtension. We have tested with Arduino IDE 1.0.1.
+
+void setup() {
+  Serial.begin(57600);
+}
+
+void loop() {
+  if (Serial.available() > 0)
+    Serial.print((char)Serial.read());
+}