Implement an AutoLaunch experiment for Chrome for certain brand codes.

chrome/installer/util/master_preferences_constants.h

Index: chrome/installer/util/master_preferences_constants.h
===================================================================
--- chrome/installer/util/master_preferences_constants.h	(revision 114230)
+++ chrome/installer/util/master_preferences_constants.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 //
@@ -13,13 +13,16 @@
 namespace master_preferences {
 // All the preferences below are expected to be inside the JSON "distribution"
 // block. Some of them also have equivalent command line option. If same option
-// is specified in master preference as well as command line, the commnd line
+// is specified in master preference as well as command line, the command line
 // value takes precedence.
 
 // Boolean. Use alternate text for the shortcut. Cmd line override present.
 extern const char kAltShortcutText[];
 // Boolean. Use alternate smaller first run info bubble.
 extern const char kAltFirstRunBubble[];
+// Boolean. Whether to instruct the installer to auto-launch chrome on computer
+// startup. The default (if not provided) is |false|.
+extern const char kAutoLaunchChrome[];
 // Boolean. CEEE features of Chrome Frame should be enabled as part of
 // the install.  Requires kChromeFrame to be specified as well.
 extern const char kCeee[];