Format all dart dev compiler files

pkg/dev_compiler/tool/input_sdk/lib/html/html_common/device.dart

 // Copyright (c) 2011, 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.
 
 part of html_common;
 
 /**
  * Utils for device detection.
  */
 class Device {
@@ skipping 88 matching lines @@
   }
 
   /**
    * Checks to see if the event class is supported by the current platform.
    */
   static bool isEventTypeSupported(String eventType) {
     // Browsers throw for unsupported event names.
     try {
       var e = new Event.eventType(eventType, '');
       return e is Event;
-    } catch (_) { }
+    } catch (_) {}
     return false;
   }
 }