Add base:: to string16s in chrome/.

chrome/tools/mac_helpers/infoplist_strings_util.mm

 // 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.
 
 // Helper tool that is built and run during a build to pull strings from
 // the GRD files and generate the InfoPlist.strings files needed for
 // Mac OS X app bundles.
 
 #import <Foundation/Foundation.h>
 
@@ skipping 238 matching lines @@
     NSString* short_name =
           LoadStringFromDataPack(branded_data_pack.get(), cur_lang,
                                  short_name_id, short_name_id_str);
     NSString* copyright_format =
         LoadStringFromDataPack(branded_data_pack.get(), cur_lang,
                                IDS_ABOUT_VERSION_COPYRIGHT,
                                "IDS_ABOUT_VERSION_COPYRIGHT");
 
     base::Time::Exploded exploded_time;
     base::Time::Now().LocalExplode(&exploded_time);
-    std::vector<string16> replacements;
+    std::vector<base::string16> replacements;
     replacements.push_back(base::IntToString16(exploded_time.year));
     NSString* copyright = base::SysUTF16ToNSString(
         ReplaceStringPlaceholders(base::SysNSStringToUTF16(copyright_format),
                                   replacements,
                                   NULL));
 
     // For now, assume this is ok for all languages. If we need to, this could
     // be moved into generated_resources.grd and fetched.
     NSString *get_info = [NSString stringWithFormat:@"%@ %@, %@",
                           name, version_string, copyright];
@@ skipping 52 matching lines @@
         [output_path stringByAppendingPathComponent:@"InfoPlist.strings"];
     if (![strings_file_contents_utf8 writeToFile:output_path
                                       atomically:YES]) {
       fprintf(stderr, "ERROR: Failed to write out '%s'\n",
               [output_path UTF8String]);
       exit(1);
     }
   }
   return 0;
 }