MSE: Experimental support for new abort and duration behavior

third_party/WebKit/public/platform/WebSourceBuffer.h

Index: third_party/WebKit/public/platform/WebSourceBuffer.h
diff --git a/third_party/WebKit/public/platform/WebSourceBuffer.h b/third_party/WebKit/public/platform/WebSourceBuffer.h
index b577cfc7a32d4a91b49c96d70b8c92d546cfb9f3..b1270d80b563a6200288f24076e497e2c1b76d67 100644
--- a/third_party/WebKit/public/platform/WebSourceBuffer.h
+++ b/third_party/WebKit/public/platform/WebSourceBuffer.h
@@ -56,6 +56,10 @@ public:
     virtual bool setMode(AppendMode) = 0;
     virtual WebTimeRanges buffered() = 0;
 
+    // Returns the highest buffered presentation timestamp of all buffered coded
+    // frames, or 0 if nothing is buffered.
+    virtual double highestPresentationTimestamp() = 0;
+
     // Run coded frame eviction/garbage collection algorithm.
     // |currentPlaybackTime| is HTMLMediaElement::currentTime. The algorithm
     // will try to preserve data around current playback position.