Add "previewing on hover" support for single-field autocomplete input

chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/autofill/autofill_dialog_controller_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 
@@ skipping 2250 matching lines @@
 void AutofillDialogControllerImpl::OnPopupHidden() {}
 
 bool AutofillDialogControllerImpl::ShouldRepostEvent(
     const ui::MouseEvent& event) {
   DCHECK_NE(UNKNOWN_TYPE, popup_input_type_);
   // If the event would be reposted inside the input showing an Autofill popup,
   // just ignore.
   return !view_->HitTestInput(popup_input_type_, event.location());
 }
 
-void AutofillDialogControllerImpl::DidSelectSuggestion(int identifier) {
+void AutofillDialogControllerImpl::DidSelectSuggestion(
+    int identifier,
+    const base::string16& value) {
   // TODO(estade): implement.
 }
 
 void AutofillDialogControllerImpl::DidAcceptSuggestion(
     const base::string16& value,
     int identifier) {
   DCHECK_NE(UNKNOWN_TYPE, popup_input_type_);
   // Because |HidePopup()| can be called from |UpdateSection()|, remember the
   // type of the input for later here.
   const ServerFieldType popup_input_type = popup_input_type_;
@@ skipping 1532 matching lines @@
   view_->UpdateButtonStrip();
 }
 
 void AutofillDialogControllerImpl::FetchWalletCookie() {
   net::URLRequestContextGetter* request_context = profile_->GetRequestContext();
   signin_helper_.reset(new wallet::WalletSigninHelper(this, request_context));
   signin_helper_->StartWalletCookieValueFetch();
 }
 
 }  // namespace autofill