Add feature flag for Switch Access

Bug: 907179
Change-Id: I1f66d659690027191a5c2d0d21f09abb2f2d82d0
Reviewed-on: https://chromium-review.googlesource.com/c/1347575
Reviewed-by: Elly Fong-Jones <[email protected]>
Reviewed-by: Hector Carmona <[email protected]>
Reviewed-by: Dominic Mazzoni <[email protected]>
Commit-Queue: Anastasia Helfinstein <[email protected]>
Cr-Commit-Position: refs/heads/master@{#610911}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 5afcfa0b..e36dcd1 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2734,6 +2734,12 @@
     {"enable-cros-ime-service", flag_descriptions::kImeServiceName,
      flag_descriptions::kImeServiceDescription, kOsCrOS,
      FEATURE_VALUE_TYPE(chromeos::features::kImeServiceConnectable)},
+    {"enable-experimental-accessibility-switch-access",
+     flag_descriptions::kExperimentalAccessibilitySwitchAccessName,
+     flag_descriptions::kExperimentalAccessibilitySwitchAccessDescription,
+     kOsCrOS,
+     SINGLE_VALUE_TYPE(
+         ::switches::kEnableExperimentalAccessibilitySwitchAccess)},
 #endif  // OS_CHROMEOS
 #if !defined(OS_ANDROID) && defined(GOOGLE_CHROME_BUILD)
     {"enable-google-branded-context-menu",