Add a component installer for Portable NaCl. Registration of installer is

chrome/common/chrome_switches.cc

 // 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.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 518 matching lines @@
 const char kEnablePanels[]                 = "enable-panels";
 
 // Enables advanced app capabilities.
 const char kEnablePlatformApps[]            = "enable-platform-apps";
 
 // Enables content settings based on host *and* plug-in in the user
 // preferences.
 const char kEnableResourceContentSettings[] =
     "enable-resource-content-settings";
 
+// Enables the installation and usage of Portable Native Client.
+const char kEnablePnacl[]                    = "enable-pnacl";
+
 // Enables speculative TCP/IP preconnection.
 const char kEnablePreconnect[]              = "enable-preconnect";
 
 // Enables tracking of tasks in profiler for viewing via about:profiler.
 // To predominantly disable tracking (profiling), use the command line switch:
 // --enable-profiling=0
 // Some tracking will still take place at startup, but it will be turned off
 // during chrome_browser_main.
 const char kEnableProfiling[]               = "enable-profiling";
 
@@ skipping 779 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches