Add power-user keyboard mode for ChromeOS with Search key acting as a typical Fn key.

chrome/common/chrome_switches.cc

 // Copyright (c) 2012 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 1418 matching lines @@
 const char kEnableTouchpadThreeFingerClick[]
     = "enable-touchpad-three-finger-click";
 
 // Enables touchpad three-finger swipe.
 const char kEnableTouchpadThreeFingerSwipe[]
     = "enable-touchpad-three-finger-swipe";
 
 // Skips OAuth part of ChromeOS login process.
 const char kSkipOAuthLogin[]                = "skip-oauth-login";
 
+// If true, show advanced keyboard options to overload the search key as a way
+// to access keys such as Home and End, similar to the "Function key" found
+// commonly on laptop keyboards.
+const char kEnableChromeOSFunctionKey[] =
+    "enable-chromeos-function-key";
+
 // Enables the redirection of viewable document requests to the Google Document
 // Viewer.
 const char kEnableGView[]                   = "enable-gview";
 
 // Enable Kiosk mode for ChromeOS
 const char kEnableKioskMode[]               = "enable-kiosk-mode";
 
 // Enables request of tablet site (via user agent override).
 const char kEnableRequestTabletSite[]       = "enable-request-tablet-site";
 
@@ skipping 174 matching lines @@
 #elif defined(OS_WIN)
   return CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableChromeStyleDialogs);
 #else
   return CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableChromeStyleDialogs);
 #endif
 }
 
 }  // namespace chrome