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..d9297c9de654921b637ca9993e2d569815f3ed96 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;

[fs, 2015/07/07 08:22:05]

Nit: Not needed (in the header.)

[srivats, 2015/07/07 18:44:49]

Done.

 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&);
@@ -31,6 +35,7 @@ public:
 private:
     void performAutomaticTextTrackSelection(const TrackGroup&);
     void enableDefaultMetadataTextTracks(const TrackGroup&);
+    const AtomicString& preferredTrackKind();
 
     const Configuration m_configuration;
 };