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

sky/examples/stocks/lib/stock_data.dart

-// Copyright 2014 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 'dart:convert';
-import 'dart:math';
-import 'package:sky/framework/net/fetch.dart';
-
-// Snapshot from http://www.nasdaq.com/screening/company-list.aspx
-// Fetched 2/23/2014.
-// "Symbol","Name","LastSale","MarketCap","IPOyear","Sector","industry","Summary Quote",
-// Data in stock_data.json
-
-final Random _rng = new Random();
-
-class Stock {
-  String symbol;
-  String name;
-  double lastSale;
-  String marketCap;
-  double percentChange;
-
-  Stock(this.symbol, this.name, this.lastSale, this.marketCap, this.percentChange);
-
-  Stock.fromFields(List<String> fields) {
-    // FIXME: This class should only have static data, not lastSale, etc.
-    // "Symbol","Name","LastSale","MarketCap","IPOyear","Sector","industry","Summary Quote",
-    lastSale = 0.0;
-    try{
-      lastSale = double.parse(fields[2]);
-    } catch(_) {}
-    symbol = fields[0];
-    name = fields[1];
-    marketCap = fields[4];
-    percentChange = (_rng.nextDouble() * 20) - 10;
-  }
-}
-
-class StockData {
-  List<List<String>> _data;
-
-  StockData(this._data);
-
-  void appendTo(List<Stock> stocks) {
-    for (List<String> fields in _data)
-      stocks.add(new Stock.fromFields(fields));
-  }
-}
-
-typedef void StockDataCallback(StockData data);
-const _kChunkCount = 30;
-
-class StockDataFetcher {
-  int _currentChunk = 0;
-  final StockDataCallback callback;
-
-  StockDataFetcher(this.callback) {
-    _fetchNextChunk();
-  }
-
-  void _fetchNextChunk() {
-    fetchBody('data/stock_data_${_currentChunk++}.json').then((Response response) {
-      String json = response.bodyAsString();
-      JsonDecoder decoder = new JsonDecoder();
-
-      callback(new StockData(decoder.convert(json)));
-
-      if (_currentChunk < _kChunkCount)
-        _fetchNextChunk();
-    });
-  }
-}