[polymer] Merge of master into polymer10-migration

tracing/tracing/extras/vsync/vsync_auditor.html

Index: tracing/tracing/extras/vsync/vsync_auditor.html
diff --git a/tracing/tracing/extras/vsync/vsync_auditor.html b/tracing/tracing/extras/vsync/vsync_auditor.html
index 23905e17cee4ee64f5bd92c4eec78d8f6894d6e3..2d450a953ccb865aaea4574ccf69b1d89206c21d 100644
--- a/tracing/tracing/extras/vsync/vsync_auditor.html
+++ b/tracing/tracing/extras/vsync/vsync_auditor.html
@@ -10,6 +10,18 @@ found in the LICENSE file.
 <script>
 'use strict';
 
+function filterDuplicateTimestamps(timestamps) {
+  var dedupedTimestamps = [];
+  var lastTs = 0;
+  for (var ts of timestamps) {
+    if (ts - lastTs >= 1) {
+      dedupedTimestamps.push(ts);
+      lastTs = ts;
+    }
+  }
+  return dedupedTimestamps;
+}
+
 tr.exportTo('tr.e.audits', function() {
 
   var VSYNC_COUNTER_PRECISIONS = {
@@ -31,7 +43,7 @@ tr.exportTo('tr.e.audits', function() {
   };
 
   var BEGIN_FRAME_SLICE_PRECISION = {
-    'Scheduler::BeginFrame': 10
+    'DisplayScheduler::BeginFrame': 10
   };
 
   /**
@@ -115,7 +127,7 @@ tr.exportTo('tr.e.audits', function() {
         }
       }
       times.sort(function(x, y) { return x - y; });
-      return times;
+      return filterDuplicateTimestamps(times);
     }
   };