Fix cue rendering test and include support for left/right alignment.

Source/core/html/track/TextTrackCue.h

Index: Source/core/html/track/TextTrackCue.h
diff --git a/Source/core/html/track/TextTrackCue.h b/Source/core/html/track/TextTrackCue.h
index 92047be060160fb2648b8ed768a129920592262e..e7c8c94b38ae75137e06cacef86984d1d29ddfbf 100644
--- a/Source/core/html/track/TextTrackCue.h
+++ b/Source/core/html/track/TextTrackCue.h
@@ -155,6 +155,7 @@ public:
 
     std::pair<double, double> getCSSPosition() const;
 
+    CSSValueID getCSSAlignment() const;
     int getCSSSize() const;
     CSSValueID getCSSWritingDirection() const;
     CSSValueID getCSSWritingMode() const;
@@ -170,7 +171,10 @@ public:
     enum CueAlignment {
         Start,
         Middle,
-        End
+        End,
+        Left,
+        Right,
+        NumberOfAlignments
     };
     CueAlignment getAlignment() const { return m_cueAlignment; }
 
@@ -269,6 +273,8 @@ private:
     CSSValueID m_displayWritingModeMap[NumberOfWritingDirections];
     CSSValueID m_displayWritingMode;
 
+    CSSValueID m_displayAlignmentMap[NumberOfAlignments];

[acolwell GONE FROM CHROMIUM, 2013/10/04 17:26:41]

nit: You should be able to make this static const since CSSValueID is a simple
type. I believe this should work for m_displayWritingModeMap as well.

[vcarbune.chromium, 2013/10/07 09:37:28]

Nice catch. Done.

+
     int m_displaySize;
 
     std::pair<float, float> m_displayPosition;