Remove wstring from autocomplete.

chrome/browser/omnibox_search_hint.cc

 // Copyright (c) 2011 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/omnibox_search_hint.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/task.h"
 // TODO(avi): remove when conversions not needed any more
@@ skipping 190 matching lines @@
 
 void OmniboxSearchHint::ShowInfoBar() {
   tab_->AddInfoBar(new HintInfoBar(this));
 }
 
 void OmniboxSearchHint::ShowEnteringQuery() {
   LocationBar* location_bar = BrowserList::GetLastActive()->window()->
       GetLocationBar();
   AutocompleteEditView*  edit_view = location_bar->location_entry();
   location_bar->FocusLocation(true);
-  edit_view->SetUserText(UTF16ToWideHack(
-      l10n_util::GetStringUTF16(IDS_OMNIBOX_SEARCH_HINT_OMNIBOX_TEXT)));
+  edit_view->SetUserText(
+      l10n_util::GetStringUTF16(IDS_OMNIBOX_SEARCH_HINT_OMNIBOX_TEXT));
   edit_view->SelectAll(false);
   // Entering text in the autocomplete edit view triggers the suggestion popup
   // that we don't want to show in this case.
   edit_view->ClosePopup();
 }
 
 void OmniboxSearchHint::DisableHint() {
   // The NAV_ENTRY_COMMITTED notification was needed to show the infobar, the
   // OMNIBOX_OPENED_URL notification was there to set the kShowOmniboxSearchHint
   // prefs to false, none of them are needed anymore.
   notification_registrar_.RemoveAll();
   tab_->profile()->GetPrefs()->SetBoolean(prefs::kShowOmniboxSearchHint,
                                           false);
 }
 
 // static
 bool OmniboxSearchHint::IsEnabled(Profile* profile) {
   // The infobar can only be shown if the correct switch has been provided and
   // the user did not dismiss the infobar before.
   return profile->GetPrefs()->GetBoolean(prefs::kShowOmniboxSearchHint) &&
       CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kSearchInOmniboxHint);
 }