Replace string16 with base::string16.

chrome/browser/chromeos/login/default_user_images.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/chromeos/login/default_user_images.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
@@ skipping 130 matching lines @@
   return *ResourceBundle::GetSharedInstance().
       GetImageSkiaNamed(kDefaultImageResourceIDs[index]);
 }
 
 string16 GetDefaultImageDescription(int index) {
   DCHECK(index >= 0 && index < kDefaultImagesCount);
   int string_id = kDefaultImageDescriptions[index];
   if (string_id)
     return l10n_util::GetStringUTF16(string_id);
   else
-    return string16();
+    return base::string16();
 }
 
 // Resource IDs of default user images.
 const int kDefaultImageResourceIDs[] = {
   IDR_LOGIN_DEFAULT_USER,
   IDR_LOGIN_DEFAULT_USER_1,
   IDR_LOGIN_DEFAULT_USER_2,
   IDR_LOGIN_DEFAULT_USER_3,
   IDR_LOGIN_DEFAULT_USER_4,
   IDR_LOGIN_DEFAULT_USER_5,
@@ skipping 115 matching lines @@
 int GetDefaultImageHistogramValue(int index) {
   DCHECK(index >= 0 && index < kDefaultImagesCount);
   // Create a gap in histogram values for
   // [kHistogramImageFromCamera..kHistogramImageFromProfile] block to fit.
   if (index < kHistogramImageFromCamera)
     return index;
   return index + 6;
 }
 
 }  // namespace chromeos