Replace string16 with base::string16.

chrome/browser/download/download_request_infobar_delegate.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 "chrome/browser/download/download_request_infobar_delegate.h"
 
 #include "chrome/browser/infobars/infobar_service.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 40 matching lines @@
     base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host)
     : ConfirmInfoBarDelegate(infobar_service),
       responded_(false),
       host_(host) {
 }
 
 int DownloadRequestInfoBarDelegate::GetIconID() const {
   return IDR_INFOBAR_MULTIPLE_DOWNLOADS;
 }
 
-string16 DownloadRequestInfoBarDelegate::GetMessageText() const {
+base::string16 DownloadRequestInfoBarDelegate::GetMessageText() const {
   return l10n_util::GetStringUTF16(IDS_MULTI_DOWNLOAD_WARNING);
 }
 
-string16 DownloadRequestInfoBarDelegate::GetButtonLabel(
+base::string16 DownloadRequestInfoBarDelegate::GetButtonLabel(
     InfoBarButton button) const {
   return l10n_util::GetStringUTF16((button == BUTTON_OK) ?
       IDS_MULTI_DOWNLOAD_WARNING_ALLOW : IDS_MULTI_DOWNLOAD_WARNING_DENY);
 }
 
 bool DownloadRequestInfoBarDelegate::Accept() {
   DCHECK(!responded_);
   responded_ = true;
   if (host_) {
     // This may invalidate |host_|.
     host_->Accept();
   }
   return !host_;
 }
 
 bool DownloadRequestInfoBarDelegate::Cancel() {
   DCHECK(!responded_);
   responded_ = true;
   if (host_) {
     // This may invalidate |host_|.
     host_->Cancel();
   }
   return !host_;
 }