Renaming Clipboard to DataTransfer

tools/dom/src/dart2js_KeyEvent.dart

 /**
  * A custom KeyboardEvent that attempts to eliminate cross-browser
  * inconsistencies, and also provide both keyCode and charCode information
  * for all key events (when such information can be determined).
  *
  * This class is very much a work in progress, and we'd love to get information
  * on how we can make this class work with as many international keyboards as
  * possible. Bugs welcome!
  */
 class KeyEvent implements KeyboardEvent {
@@ skipping 41 matching lines @@
   /** True if the altGraphKey is pressed during this event. */
   bool get altGraphKey => _parent.altGraphKey;
   bool get bubbles => _parent.bubbles;
   /** True if this event can be cancelled. */
   bool get cancelable => _parent.cancelable;
   bool get cancelBubble => _parent.cancelBubble;
   void set cancelBubble(bool cancel) {
     _parent.cancelBubble = cancel;
   }
   /** Accessor to the clipboardData available for this event. */
-  Clipboard get clipboardData => _parent.clipboardData;
+  DataTransfer get clipboardData => _parent.clipboardData;
   /** True if the ctrl key is pressed during this event. */
   bool get ctrlKey => _parent.ctrlKey;
   /** Accessor to the target this event is listening to for changes. */
   EventTarget get currentTarget => _parent.currentTarget;
   bool get defaultPrevented => _parent.defaultPrevented;
   int get detail => _parent.detail;
   int get eventPhase => _parent.eventPhase;
   /**
    * Accessor to the part of the keyboard that the key was pressed from (one of
    * KeyLocation.STANDARD, KeyLocation.RIGHT, KeyLocation.LEFT,
@@ skipping 39 matching lines @@
     throw new UnsupportedError("keyIdentifier is unsupported.");
   }
   void $dom_initKeyboardEvent(String type, bool canBubble, bool cancelable,
       Window view, String keyIdentifier, int keyLocation, bool ctrlKey,
       bool altKey, bool shiftKey, bool metaKey,
       bool altGraphKey) {
     throw new UnsupportedError(
         "Cannot initialize a KeyboardEvent from a KeyEvent.");
   }
 }