Flag for Password-related keyboard accessory functionality

By setting this flag, all entry points for password-related tasks
become available (mainly the bottom sheet, tabs and generation).

As of now, generation requires enable-password-generation and
enable-manual-password-generation in addition.

Bug: 835234, 828832, 811747
Change-Id: Ie40f9368d1ac4940663e40bb8e061f85faef865c
Reviewed-on: https://chromium-review.googlesource.com/1021710
Commit-Queue: Friedrich Horschig <[email protected]>
Reviewed-by: Vadym Doroshenko <[email protected]>
Cr-Commit-Position: refs/heads/master@{#552737}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index c4062ea..a5f3ac6 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2660,6 +2660,11 @@
     {"password-search", flag_descriptions::kPasswordSearchMobileName,
      flag_descriptions::kPasswordSearchMobileDescription, kOsAndroid,
      FEATURE_VALUE_TYPE(password_manager::features::kPasswordSearchMobile)},
+    {"passwords-keyboard-accessory",
+     flag_descriptions::kPasswordsKeyboardAccessoryName,
+     flag_descriptions::kPasswordsKeyboardAccessoryDescription, kOsAndroid,
+     FEATURE_VALUE_TYPE(
+         password_manager::features::kPasswordsKeyboardAccessory)},
 #endif  // OS_ANDROID
 #if defined(OS_CHROMEOS)
     {"enable-experimental-accessibility-features",