Reorganize some pub libraries.

sdk/lib/_internal/pub/lib/src/command_install.dart

Index: sdk/lib/_internal/pub/lib/src/command_install.dart
diff --git a/sdk/lib/_internal/pub/lib/src/command_install.dart b/sdk/lib/_internal/pub/lib/src/command_install.dart
deleted file mode 100644
index afc9d2f88aefb84f902418cc95686853bab9d574..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/lib/src/command_install.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project 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.
-
-library command_install;
-
-import 'dart:async';
-
-import 'package:args/args.dart';
-
-import 'command.dart';
-import 'entrypoint.dart';
-import 'log.dart' as log;
-
-/// Handles the `install` pub command.
-class InstallCommand extends PubCommand {
-  String get description => "Install the current package's dependencies.";
-  String get usage => "pub install";
-
-  bool get isOffline => commandOptions['offline'];
-
-  InstallCommand() {
-    commandParser.addFlag('offline',
-        help: 'Use cached packages instead of accessing the network.');
-  }
-
-  Future onRun() {
-    return entrypoint.installDependencies()
-        .then((_) => log.message("Dependencies installed!"));
-  }
-}