Added code to enable the first caption track if the user has requested captions and one such track …

LayoutTests/media/video-test.js

Index: LayoutTests/media/video-test.js
diff --git a/LayoutTests/media/video-test.js b/LayoutTests/media/video-test.js
index 6da4906678fa5497e35f7d27f857d8b3362fe569..a823e25670e1d9d46f179faac7932610d46d62b9 100644
--- a/LayoutTests/media/video-test.js
+++ b/LayoutTests/media/video-test.js
@@ -357,3 +357,11 @@ function waitForEventsAndCall(eventList, func)
         eventList[i][0].addEventListener(requiredEvents[i], _eventCallback, true);
     }
 }
+
+function clickCCButton()
+{
+    consoleWrite("*** Click the CC button.");
+    eventSender.mouseMoveTo(captionsButtonCoordinates[0], captionsButtonCoordinates[1]);
+    eventSender.mouseDown();
+    eventSender.mouseUp();
+}