Use dartfmt on Observatory code

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

Index: runtime/observatory/lib/src/elements/cpu_profile.dart
diff --git a/runtime/observatory/lib/src/elements/cpu_profile.dart b/runtime/observatory/lib/src/elements/cpu_profile.dart
index 606c81743d126c70ec7dd8886d9213cee5a3407c..68fba8acb83baf3b39db015e4a10e141f13ebe24 100644
--- a/runtime/observatory/lib/src/elements/cpu_profile.dart
+++ b/runtime/observatory/lib/src/elements/cpu_profile.dart
@@ -21,18 +21,18 @@ import 'package:observatory/src/elements/nav/vm_menu.dart';
 import 'package:observatory/src/elements/sample_buffer_control.dart';
 import 'package:observatory/src/elements/stack_trace_tree_config.dart';
 
-class CpuProfileElement  extends HtmlElement implements Renderable {
-  static const tag = const Tag<CpuProfileElement>('cpu-profile',
-                                            dependencies: const [
-                                              NavTopMenuElement.tag,
-                                              NavVMMenuElement.tag,
-                                              NavIsolateMenuElement.tag,
-                                              NavRefreshElement.tag,
-                                              NavNotifyElement.tag,
-                                              SampleBufferControlElement.tag,
-                                              StackTraceTreeConfigElement.tag,
-                                              CpuProfileVirtualTreeElement.tag,
-                                            ]);
+class CpuProfileElement extends HtmlElement implements Renderable {
+  static const tag =
+      const Tag<CpuProfileElement>('cpu-profile', dependencies: const [
+    NavTopMenuElement.tag,
+    NavVMMenuElement.tag,
+    NavIsolateMenuElement.tag,
+    NavRefreshElement.tag,
+    NavNotifyElement.tag,
+    SampleBufferControlElement.tag,
+    StackTraceTreeConfigElement.tag,
+    CpuProfileVirtualTreeElement.tag,
+  ]);
 
   RenderingScheduler<CpuProfileElement> _r;
 
@@ -50,17 +50,18 @@ class CpuProfileElement  extends HtmlElement implements Renderable {
   M.ProfileTreeDirection _direction = M.ProfileTreeDirection.exclusive;
   String _filter = '';
 
-
   M.IsolateRef get isolate => _isolate;
   M.NotificationRepository get notifications => _notifications;
   M.IsolateSampleProfileRepository get profiles => _profiles;
   M.VMRef get vm => _vm;
 
-  factory CpuProfileElement(M.VM vm, M.IsolateRef isolate,
-                            M.EventRepository events,
-                            M.NotificationRepository notifications,
-                            M.IsolateSampleProfileRepository profiles,
-                            {RenderingQueue queue}) {
+  factory CpuProfileElement(
+      M.VM vm,
+      M.IsolateRef isolate,
+      M.EventRepository events,
+      M.NotificationRepository notifications,
+      M.IsolateSampleProfileRepository profiles,
+      {RenderingQueue queue}) {
     assert(vm != null);
     assert(isolate != null);
     assert(events != null);
@@ -99,10 +100,9 @@ class CpuProfileElement  extends HtmlElement implements Renderable {
         new NavVMMenuElement(_vm, _events, queue: _r.queue),
         new NavIsolateMenuElement(_isolate, _events, queue: _r.queue),
         navMenu('cpu profile', link: Uris.cpuProfiler(_isolate)),
-        new NavRefreshElement(queue: _r.queue)
-            ..onRefresh.listen(_refresh),
+        new NavRefreshElement(queue: _r.queue)..onRefresh.listen(_refresh),
         new NavRefreshElement(label: 'Clear', queue: _r.queue)
-            ..onRefresh.listen(_clearCpuProfile),
+          ..onRefresh.listen(_clearCpuProfile),
         new NavNotifyElement(_notifications, queue: _r.queue)
       ]),
     ];
@@ -111,29 +111,36 @@ class CpuProfileElement  extends HtmlElement implements Renderable {
       return;
     }
     content.add(new SampleBufferControlElement(_progress, _progressStream,
-      selectedTag: _tag, queue: _r.queue)
+        selectedTag: _tag, queue: _r.queue)
       ..onTagChange.listen((e) {
         _tag = e.element.selectedTag;
         _request();
-    }));
+      }));
     if (_progress.status == M.SampleProfileLoadingStatus.loaded) {
       CpuProfileVirtualTreeElement tree;
       content.addAll([
         new BRElement(),
-        new StackTraceTreeConfigElement(mode: _mode, direction: _direction,
-          filter: _filter, queue: _r.queue)
-            ..onModeChange.listen((e) {
-              _mode = tree.mode = e.element.mode;
-            })
-            ..onFilterChange.listen((e) {
-              _filter = e.element.filter.trim();
-              tree.filters = _filter.isNotEmpty
-                ? [(node) { return node.name.contains(_filter); }]
+        new StackTraceTreeConfigElement(
+            mode: _mode,
+            direction: _direction,
+            filter: _filter,
+            queue: _r.queue)
+          ..onModeChange.listen((e) {
+            _mode = tree.mode = e.element.mode;
+          })
+          ..onFilterChange.listen((e) {
+            _filter = e.element.filter.trim();
+            tree.filters = _filter.isNotEmpty
+                ? [
+                    (node) {
+                      return node.name.contains(_filter);
+                    }
+                  ]
                 : const [];
-            })
-            ..onDirectionChange.listen((e) {
-              _direction = tree.direction = e.element.direction;
-            }),
+          })
+          ..onDirectionChange.listen((e) {
+            _direction = tree.direction = e.element.direction;
+          }),
         new BRElement(),
         tree = new CpuProfileVirtualTreeElement(_isolate, _progress.profile,
             queue: _r.queue)
@@ -144,8 +151,8 @@ class CpuProfileElement  extends HtmlElement implements Renderable {
 
   Future _request({bool clear: false, bool forceFetch: false}) async {
     _progress = null;
-    _progressStream = _profiles.get(isolate, _tag, clear: clear,
-        forceFetch: forceFetch);
+    _progressStream =
+        _profiles.get(isolate, _tag, clear: clear, forceFetch: forceFetch);
     _r.dirty();
     _progress = (await _progressStream.first).progress;
     _r.dirty();