Use dartfmt on Observatory code

runtime/observatory/lib/src/app/location_manager.dart

Index: runtime/observatory/lib/src/app/location_manager.dart
diff --git a/runtime/observatory/lib/src/app/location_manager.dart b/runtime/observatory/lib/src/app/location_manager.dart
index fe3daa8b20dd5211252ad7f08ffc3f4db094cc28..2e7260d730b9a09d2bcfe38bad482471a564bc4e 100644
--- a/runtime/observatory/lib/src/app/location_manager.dart
+++ b/runtime/observatory/lib/src/app/location_manager.dart
@@ -12,6 +12,7 @@ class LocationManager {
   final Map<String, String> internalArguments = new Map<String, String>();
 
   Uri _uri;
+
   /// [uri] is the application uri. Application uris consist of a path and
   /// the queryParameters map.
   Uri get uri => _uri;
@@ -27,9 +28,8 @@ class LocationManager {
       applicationPath = Uris.vm();
     }
     // Update current application path.
-    window.history.replaceState(applicationPath,
-                                document.title,
-                                applicationPath);
+    window.history
+        .replaceState(applicationPath, document.title, applicationPath);
     _updateApplicationLocation(applicationPath);
   }
 
@@ -90,11 +90,11 @@ class LocationManager {
 
   /// Notify the current page that something has changed.
   _visit() {
-    runZoned(() => _app._visit(_uri, internalArguments),
-             onError: (e, st) {
+    runZoned(() => _app._visit(_uri, internalArguments), onError: (e, st) {
       if (e is IsolateNotFound) {
         var newPath = ((_app.vm == null || _app.vm.isDisconnected)
-                       ? '/vm-connect' : '/isolate-reconnect');
+            ? '/vm-connect'
+            : '/isolate-reconnect');
         var parameters = {};
         parameters.addAll(_uri.queryParameters);
         parameters['originalUri'] = _uri.toString();
@@ -120,7 +120,8 @@ class LocationManager {
   /// Starting with the current uri path and queryParameters, update
   /// queryParameters present in [updateParameters], then generate a new uri
   /// and navigate to that.
-  goReplacingParameters(Map updatedParameters, [bool addToBrowserHistory = true]) {
+  goReplacingParameters(Map updatedParameters,
+      [bool addToBrowserHistory = true]) {
     go(makeLinkReplacingParameters(updatedParameters), addToBrowserHistory);
   }
 
@@ -148,9 +149,9 @@ class LocationManager {
   /// Utility event handler when clicking on application url link.
   void onGoto(MouseEvent event) {
     if ((event.button > 0) ||
-        event.metaKey      ||
-        event.ctrlKey      ||
-        event.shiftKey     ||
+        event.metaKey ||
+        event.ctrlKey ||
+        event.shiftKey ||
         event.altKey) {
       // Mouse event is not a left-click OR
       // mouse event is a left-click with a modifier key: