Add a runtime flag for interactive autocomplete

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 55e9768225d1fb981455654232915478461372e4..164000593822030a38a4fca373713390104c42c9 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6317,6 +6317,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ENABLE_NEW_AUTOFILL_HEURISTICS_DESCRIPTION" desc="Description for the flag to enable new Autofill heuristics">
         Enable new Autofill heuristics.  This primarily covers detection of additional field types, such as credit card type.
       </message>
+      <message name="IDS_FLAGS_ENABLE_INTERACTIVE_AUTOCOMPLETE_NAME" desc="Name of the flag that enables an interactive autocomplete UI.">
+        Enable interactive autocomplete
+      </message>
+      <message name="IDS_FLAGS_ENABLE_INTERACTIVE_AUTOCOMPLETE_DESCRIPTION" desc="Description of the flag to enable an interactive autocomplete UI.">
+        Enable an interactive autocomplete UI that can be invoked by calling HTMLFormElement#requestAutocomplete.
+      </message>
       <message name="IDS_FLAGS_ENABLE_EXPERIMENTAL_FORM_FILLING_NAME" desc="Title for the flag to enable experimental form filling">
         Enable experimental form filling
       </message>
@@ -6839,6 +6845,7 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_PERFORMANCE_MONITOR_GATHERING_DESCRIPTION" desc="Description for the flag to enable Performance Monitor.">
         Enable passive gathering of performance-related metrics and events and provide the option to view this data in a graphical fashion.
       </message>
+
       <!-- Crashes -->
       <message name="IDS_CRASHES_TITLE" desc="Title for the chrome://crashes page.">
         Crashes