Change SourceBuffer.remove() end parameter to unrestricted double.

Source/modules/mediasource/SourceBuffer.idl

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 50 matching lines @@
     [RaisesException=Setter] attribute unrestricted double appendWindowEnd;
 
     // Append segment data.
     [RaisesException] void appendBuffer(ArrayBuffer data);
     [RaisesException] void appendBuffer(ArrayBufferView data);
 
     [RaisesException, RuntimeEnabled=Stream] void appendStream(Stream stream, optional unsigned long long maxSize);
 
     // Abort the current segment append sequence.
     [RaisesException] void abort();
-    // Pending W3C bug: "Change SourceBuffer.remove() end parameter to 'unrestricted double'",
-    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=25518
-    [RaisesException] void remove(double start, double end);
+    [RaisesException] void remove(double start, unrestricted double end);
 };