[turbolizer] Add two keyboard shortcuts: R for relayout, / for search.

tools/turbolizer/graph-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 GraphView extends View {
   constructor (d3, id, nodes, edges, broker) {
     super(id, broker);
     var graph = this;
@@ skipping 607 matching lines @@
     case 65:
       // 'a'
       graph.selectAllNodes();
       allowRepetition = false;
       break;
     case 38:
     case 40: {
       showSelectionFrontierNodes(d3.event.keyCode == 38, undefined, true);
       break;
     }
+    case 82:
+      // 'r'
+      if (!d3.event.ctrlKey) {
+        this.layoutAction(this);
+      } else {
+        eventHandled = false;
+      }
+      break;
+    case 191:
+      // '/'
+      document.getElementById("search-input").focus();
+      document.getElementById("search-input").select();
+      break;
     default:
       eventHandled = false;
       break;
     }
     if (eventHandled) {
       d3.event.preventDefault();
     }
     if (!allowRepetition) {
       state.lastKeyDown = d3.event.keyCode;
     }
@@ skipping 349 matching lines @@
   }
 
   viewWholeGraph() {
     var graph = this;
     var minScale = graph.minScale();
     var translation = [0, 0];
     translation = graph.getVisibleTranslation(translation, minScale);
     graph.translateClipped(translation, minScale);
   }
 }