Move sky/examples to sky/sdk/lib/example, and code changes to support that change. Fixes T277.

sky/examples/stocks2/lib/stock_app.dart

Index: sky/examples/stocks2/lib/stock_app.dart
diff --git a/sky/examples/stocks2/lib/stock_app.dart b/sky/examples/stocks2/lib/stock_app.dart
deleted file mode 100644
index 9550265b164885ede172f307976940efceca5477..0000000000000000000000000000000000000000
--- a/sky/examples/stocks2/lib/stock_app.dart
+++ /dev/null
@@ -1,82 +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 'package:sky/rendering/sky_binding.dart';
-import 'package:sky/theme/colors.dart' as colors;
-import 'package:sky/theme/theme_data.dart';
-import 'package:sky/widgets/basic.dart';
-import 'package:sky/widgets/navigator.dart';
-import 'package:sky/widgets/theme.dart';
-import 'package:sky/widgets/widget.dart';
-
-import 'stock_data.dart';
-import 'stock_home.dart';
-import 'stock_settings.dart';
-import 'stock_types.dart';
-
-class StocksApp extends App {
-
-  NavigationState _navigationState;
-  StocksApp() {
-    _navigationState = new NavigationState([
-      new Route(
-        name: '/', 
-        builder: (navigator, route) => new StockHome(navigator, _stocks, stockMode, modeUpdater)
-      ),
-      new Route(
-        name: '/settings',
-        builder: (navigator, route) => new StockSettings(navigator, stockMode, settingsUpdater)
-      ),
-    ]);
-  }
-
-  void onBack() {
-    setState(() {
-      _navigationState.pop();
-    });
-    // TODO(jackson): Need a way to invoke default back behavior here
-  }
-
-  StockMode stockMode = StockMode.optimistic;
-  void modeUpdater(StockMode value) {
-    setState(() {
-      stockMode = value;
-    });
-  }
-  void settingsUpdater({StockMode mode}) {
-    setState(() {
-      if (mode != null)
-        stockMode = mode;
-    });
-  }
-
-  final List<Stock> _stocks = [];
-  void didMount() {
-    super.didMount();
-    new StockDataFetcher((StockData data) {
-      setState(() {
-        data.appendTo(_stocks);
-      });
-    });
-  }
-
-  Widget build() {
-    return new Theme(
-      data: new ThemeData.light(
-        primary: colors.Purple,
-        accent: colors.RedAccent,
-        darkToolbar: true),
-      child: new Navigator(_navigationState)
-    );
-  }
-}
-
-void main() {
-  print("starting stocks app!");
-  runApp(new StocksApp());
-  SkyBinding.instance.onFrame = () {
-    // uncomment this for debugging:
-    // SkyBinding.instance.debugDumpRenderTree();
-  };
-}