Rationalize Dart mojo and sky package structure

sky/framework/elements/sky-radio.sky

Index: sky/framework/elements/sky-radio.sky
diff --git a/sky/framework/elements/sky-radio.sky b/sky/framework/elements/sky-radio.sky
deleted file mode 100644
index 781c4556f58664d78eebd6b087464b7f5edf84d1..0000000000000000000000000000000000000000
--- a/sky/framework/elements/sky-radio.sky
+++ /dev/null
@@ -1,112 +0,0 @@
-<!--
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
--->
-<import src="sky-element.sky" />
-<import src="sky-icon.sky" />
-
-<sky-element attributes="selected:boolean, group:string">
-<template>
-  <style>
-    :host {
-      display: inline-flex;
-      -webkit-user-select: none;
-      margin: 8px 16px;
-    }
-  </style>
-  <sky-icon size="18" />
-</template>
-<script>
-import "dart:sky";
-
-final Map<Node, _RadioGroupController> _controllerMap = new Map();
-
-class _RadioGroupController {
-  static _RadioGroupController forRadio(radio) {
-    Node owner = radio.owner;
-    return _controllerMap.putIfAbsent(owner, () =>
-        new _RadioGroupController(owner));
-  }
-
-  final Node _scope;
-  final Set<SkyRadio> _radios = new Set<SkyRadio>();
-
-  _RadioGroupController(this._scope);
-
-  void addRadio(SkyRadio radio) {
-    _radios.add(radio);
-    // If this new radio is default-selected, take selection from the group.
-    if (radio.selected)
-      takeSelectionFromGroup(radio);
-  }
-
-  void removeRadio(SkyRadio radio) {
-    _radios.remove(radio);
-    if (_radios.isEmpty)
-      _controllerMap.remove(_scope);
-  }
-
-  void takeSelectionFromGroup(SkyRadio selectedRadio) {
-    String group = selectedRadio.group;
-    if (group == null)
-      return;
-    _radios.forEach((SkyRadio radio) {
-      if (selectedRadio == radio)
-        return;
-      if (radio.group != group)
-        return;
-      radio.selected = false;
-    });
-  }
-}
-
-const String _kOnIcon = 'toggle/radio_button_on_black';
-const String _kOffIcon = 'toggle/radio_button_off_black';
-
-@Tagname('sky-radio')
-class SkyRadio extends SkyElement {
-  _RadioGroupController _controller;
-  SkyIcon _icon;
-
-  SkyRadio() {
-    addEventListener('click', _handleClick);
-  }
-
-  void shadowRootReady() {
-    _icon = shadowRoot.querySelector('sky-icon');
-    _icon.type = selected ? _kOnIcon : _kOffIcon;
-  }
-
-  void attached() {
-    super.attached();
-    _controller = _RadioGroupController.forRadio(this);
-    _controller.addRadio(this);
-  }
-
-  void detached() {
-    super.detached();
-    _controller.removeRadio(this);
-    _controller = null;
-  }
-
-  void selectedChanged(bool oldValue, bool newValue) {
-    if (_icon != null)
-      _icon.type = newValue ? _kOnIcon : _kOffIcon;
-    if (newValue && _controller != null)
-      _controller.takeSelectionFromGroup(this);
-  }
-
-  void groupChanged(String oldValue, String newValue) {
-    if (selected && _controller != null)
-      _controller.takeSelectionFromGroup(this);
-  }
-
-  _handleClick(_) {
-    this.selected = true;
-  }
-}
-
-_init(script) => register(script, SkyRadio);
-</script>
-</sky-element>