Add a flag to ignore autocomplete="off" for Autofill.

components/autofill/content/renderer/autofill_agent.cc

Index: components/autofill/content/renderer/autofill_agent.cc
diff --git a/components/autofill/content/renderer/autofill_agent.cc b/components/autofill/content/renderer/autofill_agent.cc
index e67f87572d479ef1f272d6b0267203cfc929a02b..0a9b57fd13bf442ea9e3720934c9adf3248a8dc1 100644
--- a/components/autofill/content/renderer/autofill_agent.cc
+++ b/components/autofill/content/renderer/autofill_agent.cc
@@ -632,9 +632,15 @@ void AutofillAgent::QueryAutofillSuggestions(
   // warning.  Otherwise, we want to ignore fields that disable autocomplete, so
   // that the suggestions list does not include suggestions for these form
   // fields -- see comment 1 on http://crbug.com/69914
-  const RequirementsMask requirements =
+  RequirementsMask requirements =
       element.autoComplete() ? REQUIRE_AUTOCOMPLETE : REQUIRE_NONE;
 
+  // If we're ignoring autocomplete="off", always extract everything.
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kIgnoreAutocompleteOffForAutofill)) {
+    requirements = REQUIRE_NONE;
+  }
+
   FormData form;
   FormFieldData field;
   if (!FindFormAndFieldForFormControlElement(element, &form, &field,