Prefix string16 with base:: in ui/.

ui/views/examples/combobox_example.cc

 // Copyright (c) 2012 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 "ui/views/examples/combobox_example.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/views/controls/combobox/combobox.h"
 #include "ui/views/layout/fill_layout.h"
 
 namespace views {
 namespace examples {
 
 ComboboxModelExample::ComboboxModelExample() {
 }
 
 ComboboxModelExample::~ComboboxModelExample() {
 }
 
 int ComboboxModelExample::GetItemCount() const {
   return 10;
 }
 
-string16 ComboboxModelExample::GetItemAt(int index) {
+base::string16 ComboboxModelExample::GetItemAt(int index) {
   return UTF8ToUTF16(base::StringPrintf("Item %d", index));
 }
 
 ComboboxExample::ComboboxExample() : ExampleBase("Combo Box"), combobox_(NULL) {
 }
 
 ComboboxExample::~ComboboxExample() {
   // Delete |combobox_| first as it references |combobox_model_|.
   delete combobox_;
   combobox_ = NULL;
 }
 
 void ComboboxExample::CreateExampleView(View* container) {
   combobox_ = new Combobox(&combobox_model_);
   combobox_->set_listener(this);
   combobox_->SetSelectedIndex(3);
 
   container->SetLayoutManager(new FillLayout);
   container->AddChildView(combobox_);
 }
 
 void ComboboxExample::OnSelectedIndexChanged(Combobox* combobox) {
   DCHECK_EQ(combobox_, combobox);
   PrintStatus("Selected: %s", UTF16ToUTF8(combobox_model_.GetItemAt(
       combobox->selected_index())).c_str());
 }
 
 }  // namespace examples
 }  // namespace views