Merge pull request #1264 from collinjackson/rm_firebase

Remove Firebase flutter packge

packages/firebase/README.md

-The existence of this directory is temporary. We will shortly be
-moving support for SDKs to separate repositories. This directory
-currently exists to help us learn what exactly we need to support
-third-party SDKs.

packages/firebase/lib/firebase.dart

-// 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.
-
-/// Service exposed to Flutter apps that implements a subset of the Firebase
-/// API.
-///
-/// This library will probably be moved into a separate package eventually.
-library firebase;
-
-export 'src/firebase.dart';

packages/firebase/lib/src/firebase.dart

-// Copyright 2015, the Flutter authors.  Please see the AUTHORS file
-// for details. 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:async';
-
-import 'package:flutter/services.dart';
-import 'package:sky_services/firebase/firebase.mojom.dart' as mojo;
-
-export 'package:sky_services/firebase/firebase.mojom.dart' show DataSnapshot, EventType;
-
-class Firebase {
-
-  mojo.FirebaseProxy _firebase;
-
-  Firebase(String url) : _firebase = new mojo.FirebaseProxy.unbound() {
-    shell.connectToService("firebase::Firebase", _firebase);
-    _firebase.ptr.initWithUrl(url);
-  }
-
-  Firebase._withProxy(mojo.FirebaseProxy firebase) : _firebase = firebase;
-
-  Firebase get root {
-    mojo.FirebaseProxy proxy = new mojo.FirebaseProxy.unbound();
-    _firebase.ptr.getRoot(proxy);
-    return new Firebase._withProxy(proxy);
-  }
-
-  Firebase childByAppendingPath(String path) {
-    mojo.FirebaseProxy proxy = new mojo.FirebaseProxy.unbound();
-    _firebase.ptr.getChild(path, proxy);
-    return new Firebase._withProxy(proxy);
-  }
-
-  Future<mojo.DataSnapshot> once(mojo.EventType eventType) async {
-    return (await _firebase.ptr.observeSingleEventOfType(eventType)).snapshot;
-  }
-}