Android - Introduce "keyboard accessory" for Autofill suggestions.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 48d8576df52e2bada55ba35d105fac803873b2d6..d4709780694c23bda3b309617df067baa4a80afd 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2352,6 +2352,13 @@ const Experiment kExperiments[] = {
     kOsAndroid | kOsMac | kOsWin | kOsLinux | kOsCrOS,
     MULTI_VALUE_TYPE(kSupervisedUserSafeSitesChoices)
   },
+  {
+    "enable-autofill-keyboard-accessory-view",
+    IDS_FLAGS_AUTOFILL_ACCESSORY_VIEW_NAME,
+    IDS_FLAGS_AUTOFILL_ACCESSORY_VIEW_DESCRIPTION,
+    kOsAndroid,
+    SINGLE_VALUE_TYPE(autofill::switches::kEnableAccessorySuggestionView)
+  },
   // NOTE: Adding new command-line switches requires adding corresponding
   // entries to enum "LoginCustomFlags" in histograms.xml. See note in
   // histograms.xml and don't forget to run AboutFlagsHistogramTest unit test.