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

chrome/common/chrome_switches.h

 // 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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 373 matching lines @@
 extern const char kDisableDrivePrefetch[];
 extern const char kDisableDrive[];
 extern const char kDisableFactoryReset[];
 extern const char kDisableLoginAnimations[];
 extern const char kDisableNewOobe[];
 extern const char kDisableOobeAnimation[];
 extern const char kDisableStubEthernet[];
 extern const char kEnableBackgroundLoader[];
 extern const char kEnableCarrierSwitching[];
 extern const char kEnableChromeCaptivePortalDetector[];
+extern const char kEnableChromebookFunctionKey[];
 extern const char kEnableTouchpadThreeFingerClick[];
 extern const char kEnableTouchpadThreeFingerSwipe[];
 extern const char kSkipOAuthLogin[];
 extern const char kEnableGView[];
 extern const char kEnableKioskMode[];
 extern const char kEnableRequestTabletSite[];
 extern const char kEnableStaticIPConfig[];
 extern const char kFirstBoot[];
 extern const char kHasChromeOSKeyboard[];
 extern const char kKioskModeScreensaverPath[];
@@ skipping 62 matching lines @@
 
 namespace chrome {
 
 // Returns true if the chrome style dialog is enabled.
 // TODO(sail): Remove this once the feature is fully baked.
 bool UseChromeStyleDialogs();
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_