Add mirrored screen option

ash/ash_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 "ash/ash_switches.h"
 
 #include "base/command_line.h"
 
 namespace ash {
 namespace switches {
@@ skipping 20 matching lines @@
 
 // Indicates that the wallpaper images specified by
 // kAshDefaultWallpaper{Large,Small} are OEM-specific (i.e. they are not
 // downloadable from Google).
 const char kAshDefaultWallpaperIsOem[] = "ash-default-wallpaper-is-oem";
 
 // Default wallpaper to use (as paths to trusted, non-user-writable JPEG files).
 const char kAshDefaultWallpaperLarge[] = "ash-default-wallpaper-large";
 const char kAshDefaultWallpaperSmall[] = "ash-default-wallpaper-small";
 
+// Enables text filtering with the keyboard in Overview Mode.
+const char kAshDisableTextFilteringInOverviewMode[] =
+    "ash-disable-text-filtering-in-overview-mode";
+
 // Disables LockLayoutManager used for LockScreenContainer, return back to
 // WorkspaceLayoutManager.
 const char kAshDisableLockLayoutManager[] = "ash-disable-lock-layout-manager";
 
 // Disable the Touch Exploration Mode. Touch Exploration Mode will no longer be
 // turned on automatically when spoken feedback is enabled when this flag is
 // set.
 const char kAshDisableTouchExplorationMode[] =
     "ash-disable-touch-exploration-mode";
 
 #if defined(OS_CHROMEOS)
 // Enables key bindings to scroll magnified screen.
 const char kAshEnableMagnifierKeyScroller[] =
     "ash-enable-magnifier-key-scroller";
 #endif
 
-// Enables text filtering with the keyboard in Overview Mode.
-const char kAshDisableTextFilteringInOverviewMode[] =
-    "ash-disable-text-filtering-in-overview-mode";
+// Enables mirrored screen.
+const char kAshEnableMirroredScreen[] = "ash-enable-mirrored-screen";
 
 // Enables quick, non-cancellable locking of the screen when in maximize mode.
 const char kAshEnablePowerButtonQuickLock[] =
     "ash-enable-power-button-quick-lock";
 
 // Enables software based mirroring.
 const char kAshEnableSoftwareMirroring[] = "ash-enable-software-mirroring";
 
 // Enables touch view testing.
 // TODO(skuhne): Remove TOGGLE_TOUCH_VIEW_TESTING accelerator once this
@@ skipping 45 matching lines @@
 
 #if defined(OS_WIN)
 // Force Ash to open its root window on the desktop, even on Windows 8 where
 // it would normally end up in metro.
 const char kForceAshToDesktop[] = "ash-force-desktop";
 
 #endif
 
 }  // namespace switches
 }  // namespace ash