[turbolizer] Add support for showing perf profiling information.

tools/turbolizer/view.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 "use strict";
 
 class View {
   constructor(id, broker) {
     this.divElement = d3.select("#" + id);
     this.divNode = this.divElement[0][0];
     this.parentNode = this.divNode.parentNode;
     this.hide();
   }
 
   isScrollable() {
     return false;
   }
 
   show(data, rememberedSelection) {
     this.parentNode.appendChild(this.divElement[0][0]);
     this.initializeContent(data, rememberedSelection);
     this.resizeToParent();
     this.divElement.attr(VISIBILITY, 'visible');
   }
 
   resizeToParent() {
     var view = this;
     var documentElement = document.documentElement;
-    var y = this.parentNode.clientHeight || documentElement.clientHeight;
+    var y;
+    if (this.parentNode.clientHeight)
+      y = Math.max(this.parentNode.clientHeight, documentElement.clientHeight);
+    else
+      y = documentElement.clientHeight;
     this.parentNode.style.height = y + 'px';
   }
 
   hide() {
     this.divElement.attr(VISIBILITY, 'hidden');
     this.deleteContent();
     this.parentNode.removeChild(this.divNode);
   }
 
   detachSelection() {
     return null;
   }
 }