Always use seek range to set seek bar size

This reverts a small part of 3cad924.

Closes #477

Change-Id: Ie5df1e7ebda1e4ae38a1b3f805dc9b40b5672126

demo/controls.js

@@ -547,11 +547,10 @@ ShakaControls.prototype.updateTimeAndSeekRange_ = function() {
   var bufferedEnd = bufferedLength ? this.video_.buffered.end(0) : 0;
   var seekRange = this.player_.seekRange();
 
-  if (this.player_.isLive()) {
-    // For live, the seek bar size is the seek range.
-    this.seekBar_.min = seekRange.start;
-    this.seekBar_.max = seekRange.end;
+  this.seekBar_.min = seekRange.start;
+  this.seekBar_.max = seekRange.end;
 
+  if (this.player_.isLive()) {
     // The amount of time we are behind the live edge.
     var behindLive = Math.floor(seekRange.end - displayTime);
     displayTime = Math.max(0, behindLive);
@@ -573,10 +572,6 @@ ShakaControls.prototype.updateTimeAndSeekRange_ = function() {
       this.seekBar_.value = seekRange.end - displayTime;
     }
   } else {
-    // For VOD and IPR, the seek bar size is from 0 to duration.
-    this.seekBar_.min = 0;
-    this.seekBar_.max = duration;
-
     var showHour = duration >= 3600;
     this.currentTime_.textContent =
         this.buildTimeString_(displayTime, showHour);