Support text track selection in video controls

third_party/WebKit/Source/core/html/track/TextTrack.cpp

Index: third_party/WebKit/Source/core/html/track/TextTrack.cpp
diff --git a/third_party/WebKit/Source/core/html/track/TextTrack.cpp b/third_party/WebKit/Source/core/html/track/TextTrack.cpp
index 1cd60174bdb63963e3b387e178c1848c9b1bfd7f..6203f5ecd8bd31077f737010084ac04a60eb97a2 100644
--- a/third_party/WebKit/Source/core/html/track/TextTrack.cpp
+++ b/third_party/WebKit/Source/core/html/track/TextTrack.cpp
@@ -425,6 +425,14 @@ bool TextTrack::isRendered()
     return true;
 }
 
+bool TextTrack::canBeRendered()
+{
+    // A track can be displayed when it's of kind captions or subtitles and hasn't failed to load.
+    if ((kind() == captionsKeyword() || kind() == subtitlesKeyword()) && readinessState() != FailedToLoad)

[fs, 2016/02/24 10:14:57]

Could you write this like:

if (kind() != captionsKeyword() && kind() != subtitlesKeyword())
    return false;
if (readinessState() == FailedToLoad)
    return false;
return true;

instead?

[srivats, 2016/02/25 21:47:56]

Done.

+        return true;
+    return false;
+}
+
 TextTrackCueList* TextTrack::ensureTextTrackCueList()
 {
     if (!m_cues)