Hook up Android closed captions 'enabled' setting to Blink

Source/core/html/track/AutomaticTrackSelection.h

Index: Source/core/html/track/AutomaticTrackSelection.h
diff --git a/Source/core/html/track/AutomaticTrackSelection.h b/Source/core/html/track/AutomaticTrackSelection.h
index 5572d0f99988a9f08302ebce7f033a2b1a76e0fa..b9e0b48b23bf3d214bb0880b8b027f4f86195038 100644
--- a/Source/core/html/track/AutomaticTrackSelection.h
+++ b/Source/core/html/track/AutomaticTrackSelection.h
@@ -5,10 +5,12 @@
 #ifndef AutomaticTrackSelection_h
 #define AutomaticTrackSelection_h
 
+#include "core/html/track/TextTrackKindUserPreference.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
+class TextTrack;
 class TextTrackList;
 class TrackGroup;
 
@@ -18,10 +20,12 @@ public:
     struct Configuration {
         Configuration()
             : disableCurrentlyEnabledTracks(false)
-            , forceEnableSubtitleOrCaptionTrack(false) { }
+            , forceEnableSubtitleOrCaptionTrack(false)
+            , textTrackKindUserPreference(TextTrackKindUserPreference::Default) { }
 
         bool disableCurrentlyEnabledTracks;
         bool forceEnableSubtitleOrCaptionTrack;
+        TextTrackKindUserPreference textTrackKindUserPreference;
     };
 
     AutomaticTrackSelection(const Configuration&);
@@ -29,10 +33,13 @@ public:
     void perform(TextTrackList&);
 
 private:
-    void performAutomaticTextTrackSelection(const TrackGroup&);
+    PassRefPtrWillBeRawPtr<TextTrack> performAutomaticTextTrackSelection(const TrackGroup&);
     void enableDefaultMetadataTextTracks(const TrackGroup&);
+    PassRefPtrWillBeRawPtr<TextTrack> enableTrackBasedOnUserPreference(PassRefPtrWillBeRawPtr<TextTrack>,
+        PassRefPtrWillBeRawPtr<TextTrack>);
 
     const Configuration m_configuration;
+    RefPtrWillBeRawPtr<TextTrack> m_fallbackCaptionOrSubtitleTrack;
 };
 
 } // namespace blink