DevTools: Refactor memory counter display

Source/devtools/front_end/timeline/MemoryCountersGraph.js

Index: Source/devtools/front_end/timeline/MemoryCountersGraph.js
diff --git a/Source/devtools/front_end/timeline/MemoryCountersGraph.js b/Source/devtools/front_end/timeline/MemoryCountersGraph.js
index 85555245b7aaa4bab6e1d1a0f32df26d5fd3a133..5e6931e83a04b293d99c8b1b8b1d87ee65298758 100644
--- a/Source/devtools/front_end/timeline/MemoryCountersGraph.js
+++ b/Source/devtools/front_end/timeline/MemoryCountersGraph.js
@@ -39,12 +39,12 @@ WebInspector.MemoryCountersGraph = function(delegate, model)
 {
     WebInspector.CountersGraph.call(this, WebInspector.UIString("MEMORY"), delegate, model);
     this._countersByName = {};
-    this._countersByName["jsHeapSizeUsed"] = this.createCounter(WebInspector.UIString("Used JS Heap"), WebInspector.UIString("JS Heap Size: %d"), "hsl(220, 90%, 43%)");
-    this._countersByName["documents"] = this.createCounter(WebInspector.UIString("Documents"), WebInspector.UIString("Documents: %d"), "hsl(0, 90%, 43%)");
-    this._countersByName["nodes"] = this.createCounter(WebInspector.UIString("Nodes"), WebInspector.UIString("Nodes: %d"), "hsl(120, 90%, 43%)");
-    this._countersByName["jsEventListeners"] = this.createCounter(WebInspector.UIString("Listeners"), WebInspector.UIString("Listeners: %d"), "hsl(38, 90%, 43%)");
+    this._countersByName["jsHeapSizeUsed"] = this.createCounter(WebInspector.UIString("JS Heap"), WebInspector.UIString("JS Heap: %s"), "hsl(220, 90%, 43%)", Number.bytesToString);
+    this._countersByName["documents"] = this.createCounter(WebInspector.UIString("Documents"), WebInspector.UIString("Documents: %s"), "hsl(0, 90%, 43%)");
+    this._countersByName["nodes"] = this.createCounter(WebInspector.UIString("Nodes"), WebInspector.UIString("Nodes: %s"), "hsl(120, 90%, 43%)");
+    this._countersByName["jsEventListeners"] = this.createCounter(WebInspector.UIString("Listeners"), WebInspector.UIString("Listeners: %s"), "hsl(38, 90%, 43%)");
     if (Runtime.experiments.isEnabled("gpuTimeline")) {
-        this._gpuMemoryCounter = this.createCounter(WebInspector.UIString("GPU Memory"), WebInspector.UIString("GPU Memory [KB]: %d"), "hsl(300, 90%, 43%)");
+        this._gpuMemoryCounter = this.createCounter(WebInspector.UIString("GPU Memory"), WebInspector.UIString("GPU Memory [KB]: %s"), "hsl(300, 90%, 43%)", Number.bytesToString);
         this._countersByName["gpuMemoryUsedKB"] = this._gpuMemoryCounter;
     }
 }