Removing setImmediate and hiding WindowTimers interface (take 2)

tools/dom/templates/html/impl/impl_Window.darttemplate

Index: tools/dom/templates/html/impl/impl_Window.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_Window.darttemplate b/tools/dom/templates/html/impl/impl_Window.darttemplate
index aaa1b97296d0dd76e9662ac907ce7ae04ce5292d..c8f32e077639cbc19c1b294c6d0b4203d4eb3833 100644
--- a/tools/dom/templates/html/impl/impl_Window.darttemplate
+++ b/tools/dom/templates/html/impl/impl_Window.darttemplate
@@ -12,19 +12,6 @@ $(ANNOTATIONS)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
 $endif
 
   /**
-   * Executes a [callback] after the immediate execution stack has completed.
-   *
-   * This differs from using Timer.run(callback)
-   * because Timer will run in about 4-15 milliseconds, depending on browser,
-   * depending on load. [setImmediate], in contrast, makes browser-specific
-   * changes in behavior to attempt to run immediately after the current
-   * frame unwinds, causing the future to complete after all processing has
-   * completed for the current event, but before any subsequent events.
-   */
-  void setImmediate(TimeoutHandler callback) {
-    _addMicrotaskCallback(callback);
-  }
-  /**
    * Lookup a port by its [name].  Return null if no port is
    * registered under [name].
    */
@@ -222,23 +209,7 @@ $if DART2JS
   @DomName('Window.console')
   Console get console => Console._safeConsole;
 
-  /// Checks if _setImmediate is supported.
-  static bool get _supportsSetImmediate =>
-      JS('bool', '!!(window.setImmediate)');
-
-  // Set immediate implementation for IE
-  void _setImmediate(void callback()) {
-    JS('void', '#.setImmediate(#)', this, convertDartClosureToJS(callback, 0));
-  }
 $else
-  /// Checks if _setImmediate is supported.
-  static bool get _supportsSetImmediate => false;
-
-  /// Dartium stub for IE's setImmediate.
-  void _setImmediate(void callback()) {
-    throw new UnsupportedError('setImmediate is not supported');
-  }
-
   /**
    * Called to draw an animation frame and then request the window to repaint
    * after [callback] has finished (creating the animation).