[turbolizer] Remember the last phase, search query, and pane expansions.

tools/turbolizer/graph-view.js

Index: tools/turbolizer/graph-view.js
diff --git a/tools/turbolizer/graph-view.js b/tools/turbolizer/graph-view.js
index 7431f4b9a14fe4501ceb652cd88e7d3085710152..9ed4fb5684122747df8aac8524ef0d4f5bb75bac 100644
--- a/tools/turbolizer/graph-view.js
+++ b/tools/turbolizer/graph-view.js
@@ -510,7 +510,10 @@ class GraphView extends View {
   searchInputAction(graph) {
     if (d3.event.keyCode == 13) {
       graph.state.selection.clear();
-      var reg = new RegExp(this.value);
+      var query = this.value;
+      window.sessionStorage.setItem("lastSearch", query);
+
+      var reg = new RegExp(query);
       var filterFunction = function(n) {
         return (reg.exec(n.getDisplayLabel()) != null ||
                 (graph.state.showTypes && reg.exec(n.getDisplayType())) ||