Add a html-based visualizer for TurboFan graphs

tools/turbolizer/empty-view.js

Index: tools/turbolizer/empty-view.js
diff --git a/tools/turbolizer/empty-view.js b/tools/turbolizer/empty-view.js
new file mode 100644
index 0000000000000000000000000000000000000000..66caf59d8f66a702027289f2a5cfc84c6019bd56
--- /dev/null
+++ b/tools/turbolizer/empty-view.js
@@ -0,0 +1,19 @@
+// 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 EmptyView extends View {
+  constructor(id, broker) {
+    super(id, broker);
+    this.svg = this.divElement.append("svg").attr('version','1.1').attr("width", "100%");
+  }
+
+  initializeContent(data, rememberedSelection) {
+    this.svg.attr("height", document.documentElement.clientHeight + "px");
+  }
+
+  deleteContent() {
+  }
+}