Hook up Android closed captions 'enabled' setting to Blink

LayoutTests/media/track/track-language-preference.html

Index: LayoutTests/media/track/track-language-preference.html
diff --git a/LayoutTests/media/track/track-language-preference.html b/LayoutTests/media/track/track-language-preference.html
index 428f27e4160cd31335d2dd08939b00cb8cb74c29..2782b8eb56def1dac4448fef75b5181336ddcbb0 100644
--- a/LayoutTests/media/track/track-language-preference.html
+++ b/LayoutTests/media/track/track-language-preference.html
@@ -76,6 +76,7 @@
 
                 consoleWrite("<i>**Set user preferred languages<" + "/i>");
                 run("internals.setUserPreferredLanguages(['jp', 'es-ES', 'en', 'fr'])");
+                window.internals.settings.setTextTrackKindUserPreference('captions');
             }
             
             function createTrackElement(language, src)
@@ -103,7 +104,7 @@
             {
                 findMediaElement();
 
-                setPreferences("Subtitles", true);
+                setPreferences();
 
                 runNextTest();
             }