[CrOS] Initial rough cut of alt-tab window cycling UI.

ash/common/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/common/ash_switches.h"
 
 #include "base/command_line.h"
 #include "base/sys_info.h"
 
 namespace ash {
@@ skipping 57 matching lines @@
 const char kAshEnableStableOverviewOrder[] = "ash-enable-stable-overview-order";
 
 // 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
 // flag is removed.
 const char kAshEnableTouchViewTesting[] = "ash-enable-touch-view-testing";
 
+// Enables the window cycling UI (more visual feedback for alt-tab).
+const char kAshEnableWindowCycleUi[] = "ash-enable-window-cycle-ui";
+
 // Hides notifications that are irrelevant to Chrome OS device factory testing,
 // such as battery level updates.
 const char kAshHideNotificationsForFactory[] =
     "ash-hide-notifications-for-factory";
 
 // Sets a window size, optional position, and optional scale factor.
 // "1024x768" creates a window of size 1024x768.
 // "100+200-1024x768" positions the window at 100,200.
 // "1024x768*2" sets the scale factor to 2 for a high DPI display.
 // "800,0+800-800x800" for two displays at 800x800 resolution.
@@ skipping 41 matching lines @@
 
   return base::SysInfo::IsRunningOnChromeOS() ||
          base::CommandLine::ForCurrentProcess()->HasSwitch(
              kAshConstrainPointerToRoot);
 }
 
 #endif
 
 }  // namespace switches
 }  // namespace ash