Add flag to enable immersive fullscreen for v2 apps

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 81 matching lines @@
 // Always enable brightness control. Used by machines that don't report their
 // main monitor as internal.
 const char kAshEnableBrightnessControl[] = "ash-enable-brightness-control";
 
 // Disable ability to dock windows at the desktop edge.
 const char kAshDisableDockedWindows[] = "ash-disable-docked-windows";
 
 // Disable dragging items off the shelf to unpin them.
 const char kAshDisableDragOffShelf[] = "ash-disable-drag-off-shelf";
 
+// Enables putting all windows into immersive fullscreen via <F4>.
+const char kAshEnableImmersiveFullscreenForAllWindows[] =
+    "ash-enable-immersive-all-windows";
+
 #if defined(OS_CHROMEOS)
 // Enables the "full multi profile mode" - as it was in M-31.
 const char kAshEnableFullMultiProfileMode[] =
     "ash-enable-full-multi-profile-mode";
 #endif
 
 #if defined(OS_LINUX)
 // Enable memory monitoring.
 const char kAshEnableMemoryMonitor[] = "ash-enable-memory-monitor";
 #endif
@@ skipping 123 matching lines @@
 }
 
 bool UseUsbChargerNotification() {
   return !CommandLine::ForCurrentProcess()->
       HasSwitch(kAshDisableUsbChargerNotification);
 }
 #endif
 
 }  // namespace switches
 }  // namespace ash