Make Observatory analyzer clean

runtime/observatory/lib/src/elements/cpu_profile.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library cpu_profile_element;
 
 import 'dart:async';
 import 'dart:html';
 import 'observatory_element.dart';
 import 'package:observatory/service.dart';
@@ skipping 545 matching lines @@
 /// Displays a CpuProfile
 @CustomTag('cpu-profile')
 class CpuProfileElement extends ObservatoryElement {
   CpuProfileElement.created() : super.created() {
     _updateTask = new Task(update);
     _renderTask = new Task(render);
   }
 
   attached() {
     super.attached();
-    sampleBufferControlElement = shadowRoot.query('#sampleBufferControl');
+    sampleBufferControlElement =
+        shadowRoot.querySelector('#sampleBufferControl');
     assert(sampleBufferControlElement != null);
     sampleBufferControlElement.onSampleBufferUpdate = onSampleBufferChange;
-    stackTraceTreeConfigElement = shadowRoot.query('#stackTraceTreeConfig');
+    stackTraceTreeConfigElement =
+        shadowRoot.querySelector('#stackTraceTreeConfig');
     assert(stackTraceTreeConfigElement != null);
     stackTraceTreeConfigElement.onTreeConfigChange = onTreeConfigChange;
     cpuProfileTreeElement = shadowRoot.querySelector('#cpuProfileTree');
     assert(cpuProfileTreeElement != null);
     cpuProfileTreeElement.profile = sampleBufferControlElement.profile;
     _updateTask.queue();
   }
 
   isolateChanged(oldValue) {
     _updateTask.queue();
@@ skipping 182 matching lines @@
         new SortedTableColumn.withFormatter('Callers (%)',
                                             Utils.formatPercentNormalized),
         new SortedTableColumn('Method')
     ];
     profileCallersTable = new NameSortedTable(columns);
     profileCallersTable.sortColumnIndex = 0;
   }
 
   attached() {
     super.attached();
-    sampleBufferControlElement = shadowRoot.query('#sampleBufferControl');
+    sampleBufferControlElement =
+        shadowRoot.querySelector('#sampleBufferControl');
     assert(sampleBufferControlElement != null);
     sampleBufferControlElement.onSampleBufferUpdate = onSampleBufferChange;
     // Disable the tag selector- we always want no tags.
     sampleBufferControlElement.tagSelector = 'None';
     sampleBufferControlElement.showTagSelector = false;
-    stackTraceTreeConfigElement = shadowRoot.query('#stackTraceTreeConfig');
+    stackTraceTreeConfigElement =
+        shadowRoot.querySelector('#stackTraceTreeConfig');
     assert(stackTraceTreeConfigElement != null);
     stackTraceTreeConfigElement.onTreeConfigChange = onTreeConfigChange;
     stackTraceTreeConfigElement.modeSelector = 'Function';
     stackTraceTreeConfigElement.showModeSelector = false;
     stackTraceTreeConfigElement.directionSelector = 'Down';
     stackTraceTreeConfigElement.showDirectionSelector = false;
     cpuProfileTreeElement = shadowRoot.querySelector('#cpuProfileTree');
     assert(cpuProfileTreeElement != null);
     cpuProfileTreeElement.profile = sampleBufferControlElement.profile;
     _updateTask.queue();
@@ skipping 376 matching lines @@
       return;
     }
     var tree = profile.loadCodeTree(exclusive ? 'exclusive' : 'inclusive');
     if (tree == null) {
       return;
     }
     var rootRow = new CodeProfileTreeRow(codeTree, null, profile, tree.root);
     codeTree.initialize(rootRow);
   }
 }