Add base:: to string16s in chrome/.

chrome/service/cloud_print/printer_job_handler.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/service/cloud_print/printer_job_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/json/json_reader.h"
@@ skipping 755 matching lines @@
 // access any members other than |job_handler_message_loop_proxy_|,
 // |job_spooler_| and |print_system_|.
 void PrinterJobHandler::DoPrint(const JobDetails& job_details,
                                 const std::string& printer_name) {
   job_spooler_ = print_system_->CreateJobSpooler();
   UMA_HISTOGRAM_LONG_TIMES("CloudPrint.PrepareTime",
                            base::Time::Now() - job_start_time_);
   DCHECK(job_spooler_.get());
   if (!job_spooler_.get())
     return;
-  string16 document_name =
+  base::string16 document_name =
       printing::SimplifyDocumentTitle(UTF8ToUTF16(job_details.job_title_));
   if (document_name.empty()) {
     document_name = printing::SimplifyDocumentTitle(
         l10n_util::GetStringUTF16(IDS_DEFAULT_PRINT_DOCUMENT_TITLE));
   }
   UMA_HISTOGRAM_ENUMERATION("CloudPrint.JobHandlerEvent",
                             JOB_HANDLER_START_SPOOLING, JOB_HANDLER_MAX);
   spooling_start_time_ = base::Time::Now();
   if (!job_spooler_->Spool(job_details.print_ticket_,
                            job_details.print_data_file_path_,
                            job_details.print_data_mime_type_,
                            printer_name,
                            UTF16ToUTF8(document_name),
                            job_details.tags_,
                            this)) {
     OnJobSpoolFailed();
   }
 }
 
 }  // namespace cloud_print