Support selection and copying over non-editable content in ChromeVox Next.

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 847f58a2b3e0656ddd6153665193ac649cae7e02..d9951204d1cd3b2ee7aebac32a69dc62b51ac012 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs
@@ -967,3 +967,28 @@ TEST_F('BackgroundTest', 'ContentEditableJumpSyncsRange', function() {
         .replay();
   });
 });
+
+TEST_F('BackgroundTest', 'Selection', function() {
+  var mockFeedback = this.createMockFeedback();
+  this.runWithLoadedTree(function(root) {/*!
+    <p>simple</p>
+    <p>doc</p>
+  */}, function(root) {
+    // Fakes a toggleSelection command.
+    root.addEventListener('textSelectionChanged', function() {
+      if (root.focusOffset == 3)
+        ChromeVoxState.instance.onGotCommand('toggleSelection');
+    }, true);
+
+    mockFeedback.call(doCmd('toggleSelection'))
+        .expectSpeech('simple', 'selected')
+        .call(doCmd('nextCharacter'))
+        .expectSpeech('i', 'selected')
+        .call(doCmd('previousCharacter'))
+        .expectSpeech('i', 'unselected')
+        .call(doCmd('nextCharacter'))
+        .call(doCmd('nextCharacter'))
+        .expectSpeech('End selection', 'sim')
+        .replay();
+  });
+});