cros: Expose kInteractiveWinowCycleList flag to chrome.

The kInteractiveWindowCycleList flag was already created on the
ash-side but it was not linked with Chrome yet. This CL adds the flag,
allowing users to interact with Alt-Tab using their mouse, different
keys, and three-finger touchpad scroll.

The flag is disabled by default.

Test: Manual
Bug: 1067327
Change-Id: Iaa101a4705bf4b5c462cc38c5e33e9b75e51ca45
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2410759
Commit-Queue: Jeremy Chinsen <[email protected]>
Reviewed-by: Sammie Quon <[email protected]>
Cr-Commit-Position: refs/heads/master@{#806844}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 9708b60..b5436b4 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2547,6 +2547,10 @@
      flag_descriptions::kAshEnableUnifiedDesktopName,
      flag_descriptions::kAshEnableUnifiedDesktopDescription, kOsCrOS,
      SINGLE_VALUE_TYPE(switches::kEnableUnifiedDesktop)},
+    {"ash-enable-interactive-window-cycle-list",
+     flag_descriptions::kInteractiveWindowCycleList,
+     flag_descriptions::kInteractiveWindowCycleListDescription, kOsCrOS,
+     FEATURE_VALUE_TYPE(ash::features::kInteractiveWindowCycleList)},
     {"bluetooth-aggressive-appearance-filter",
      flag_descriptions::kBluetoothAggressiveAppearanceFilterName,
      flag_descriptions::kBluetoothAggressiveAppearanceFilterDescription,