Hook up Android closed captions 'enabled' setting to Blink

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index ea7f64e3b762cbcff13cb65f18ba956eacbf15b6..bf7ad7367276635b548c921eb7640256155e9087 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -53,6 +53,7 @@
 #include "core/frame/OriginsUsingFeatures.h"
 #include "core/html/CollectionType.h"
 #include "core/html/parser/ParserSynchronizationPolicy.h"
+#include "core/html/track/TextTrackKindUserPreference.h"
 #include "core/page/PageVisibilityState.h"
 #include "platform/Length.h"
 #include "platform/Timer.h"
@@ -238,6 +239,8 @@ public:
 
     void mediaQueryAffectingValueChanged();
 
+    void textTrackKindUserPreferenceChanged();
+
 #if !ENABLE(OILPAN)
     using ContainerNode::ref;
     using ContainerNode::deref;