tquery: Remove hard dependency on UI

tracing/tracing/ui/scripting_control.html

Index: tracing/tracing/ui/scripting_control.html
diff --git a/tracing/tracing/ui/scripting_control.html b/tracing/tracing/ui/scripting_control.html
index 798302b93d165502b02e53f80843a986681da705..90527213b23b2a72c3178a86319137d20bb5231e 100644
--- a/tracing/tracing/ui/scripting_control.html
+++ b/tracing/tracing/ui/scripting_control.html
@@ -133,9 +133,13 @@ found in the LICENSE file.
         result = e.stack || e.stackTrace;
       }
 
-      if (result instanceof tr.b.Task) {
+      if (result instanceof tr.e.tquery.TQuery) {
         // TODO(skyostil): Show a cool spinner.
-        tr.b.Task.RunWhenIdle(result);
+        result.ready().then(function(selection) {
+          this.addLine_(selection.length + ' matches');
+          this.controller_.brushingStateController.
+              showScriptControlSelection(selection);
+        }.bind(this));
       } else {
         this.addLine_(result);
       }