DevTools: merge TracingTimelineUIUtils into TimelineUIUtils

Source/devtools/front_end/timeline/TimelineMemoryOverview.js

Index: Source/devtools/front_end/timeline/TimelineMemoryOverview.js
diff --git a/Source/devtools/front_end/timeline/TimelineMemoryOverview.js b/Source/devtools/front_end/timeline/TimelineMemoryOverview.js
index f0c1a91f76a7411b0f041e8ad4da8e732669c4b8..ade824b8bb120495bdda509de062a776af050eff 100644
--- a/Source/devtools/front_end/timeline/TimelineMemoryOverview.js
+++ b/Source/devtools/front_end/timeline/TimelineMemoryOverview.js
@@ -32,12 +32,10 @@
  * @constructor
  * @extends {WebInspector.TimelineOverviewBase}
  * @param {!WebInspector.TimelineModel} model
- * @param {!WebInspector.TimelineUIUtils} uiUtils
  */
-WebInspector.TimelineMemoryOverview = function(model, uiUtils)
+WebInspector.TimelineMemoryOverview = function(model)
 {
     WebInspector.TimelineOverviewBase.call(this, model);
-    this._uiUtils = uiUtils;
     this.element.id = "timeline-overview-memory";
 
     this._heapSizeLabel = this.element.createChild("div", "memory-graph-label");
@@ -65,13 +63,12 @@ WebInspector.TimelineMemoryOverview.prototype = {
         var minUsedHeapSize = 100000000000;
         var minTime = this._model.minimumRecordTime();
         var maxTime = this._model.maximumRecordTime();
-        var uiUtils = this._uiUtils;
         /**
          * @param {!WebInspector.TimelineModel.Record} record
          */
         function calculateMinMaxSizes(record)
         {
-            var counters = uiUtils.countersForRecord(record);
+            var counters = WebInspector.TimelineUIUtils.isCoalescable.countersForRecord(record);
             if (!counters || !counters.jsHeapSizeUsed)
                 return;
             maxUsedHeapSize = Math.max(maxUsedHeapSize, counters.jsHeapSizeUsed);
@@ -93,7 +90,7 @@ WebInspector.TimelineMemoryOverview.prototype = {
          */
         function buildHistogram(record)
         {
-            var counters = uiUtils.countersForRecord(record);
+            var counters = WebInspector.TimelineUIUtils.isCoalescable.countersForRecord(record);
             if (!counters || !counters.jsHeapSizeUsed)
                 return;
             var x = Math.round((record.endTime() - minTime) * xFactor);