Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/test/lib/src/runner/browser/internet_explorer.dart

Index: mojo/public/dart/third_party/test/lib/src/runner/browser/internet_explorer.dart
diff --git a/mojo/public/dart/third_party/test/lib/src/runner/browser/internet_explorer.dart b/mojo/public/dart/third_party/test/lib/src/runner/browser/internet_explorer.dart
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@@ -0,0 +1,55 @@
+// Copyright (c) 2015, 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 test.runner.browser.internet_explorer;
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:path/path.dart' as p;
+
+import 'browser.dart';
+
+/// A class for running an instance of Internet Explorer.
+///
+/// Any errors starting or running the process are reported through [onExit].
+class InternetExplorer extends Browser {
+  final name = "Internet Explorer";
+
+  InternetExplorer(url, {String executable})
+      : super(() => _startBrowser(url, executable));
+
+  /// Starts a new instance of Internet Explorer open to the given [url], which
+  /// may be a [Uri] or a [String].
+  ///
+  /// If [executable] is passed, it's used as the Internet Explorer executable.
+  /// Otherwise the default executable name for the current OS will be used.
+  static Future<Process> _startBrowser(url, [String executable]) {
+    if (executable == null) executable = _defaultExecutable();
+    return Process.start(executable, ['-extoff', url.toString()]);
+  }
+
+  /// Return the default executable for the current operating system.
+  static String _defaultExecutable() {
+    // Internet Explorer could be installed in several places on Windows. The
+    // only way to find it is to check.
+    var prefixes = [
+      Platform.environment['PROGRAMW6432'],
+      Platform.environment['PROGRAMFILES'],
+      Platform.environment['PROGRAMFILES(X86)']
+    ];
+    var suffix = r'Internet Explorer\iexplore.exe';
+
+    for (var prefix in prefixes) {
+      if (prefix == null) continue;
+
+      var path = p.join(prefix, suffix);
+      if (new File(p.join(prefix, suffix)).existsSync()) return path;
+    }
+
+    // Fall back on looking it up on the path. This probably won't work, but at
+    // least it will fail with a useful error message.
+    return "iexplore.exe";
+  }
+}