Only read out selected node in processing menuListItemSelected event.

chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs
index 5b1b4572056ebb66c4f0f587998c0742f0f54d19..4bac9dc6c2815debeec070ae676c6e2d73e8d76c 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs
@@ -630,3 +630,27 @@ TEST_F('BackgroundTest', 'DISABLED_ForwardNavigationThroughIframes', function()
     });
   });
 });
+
+TEST_F('BackgroundTest', 'SelectOptionSelected', function() {
+  var mockFeedback = this.createMockFeedback();
+  this.runWithLoadedTree(function() {/*!
+    <select>
+      <option>apple
+      <option>banana
+      <option>grapefruit
+    </select>
+  */}, function(root) {
+    var select = root.find({role: 'popUpButton'});
+    var clickSelect = select.doDefault.bind(select);
+    var lastOption = select.lastChild.lastChild;
+    var selectLastOption = lastOption.doDefault.bind(lastOption);
+
+    mockFeedback.call(clickSelect)
+        .expectSpeech('apple')
+        .expectSpeech('Button')
+        .call(selectLastOption)
+        .expectNextSpeechUtteranceIsNot('apple')
+        .expectSpeech('grapefruit')
+        .replay();
+  });
+});