Revert piece of "De-duplicate job_settings parsing code." r231501

printing/printing_context.cc

 // Copyright (c) 2011 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 "printing/printing_context.h"
 
 #include "base/logging.h"
 #include "base/values.h"
 #include "printing/page_setup.h"
 #include "printing/page_size_margins.h"
@@ skipping 29 matching lines @@
 PrintingContext::Result PrintingContext::OnError() {
   ResetSettings();
   return abort_printing_ ? CANCEL : FAILED;
 }
 
 PrintingContext::Result PrintingContext::UpdatePrintSettings(
     const base::DictionaryValue& job_settings,
     const PageRanges& ranges) {
   ResetSettings();
 
-  if (settings_.dpi() == 0)
-    UseDefaultSettings();
-
   if (!PrintSettingsInitializer::InitSettings(job_settings, ranges,
                                               &settings_)) {
     NOTREACHED();
     return OnError();
   }
 
   bool print_to_pdf = false;
   bool is_cloud_dialog = false;
 
   if (!job_settings.GetBoolean(kSettingPrintToPDF, &print_to_pdf) ||
       !job_settings.GetBoolean(kSettingCloudPrintDialog, &is_cloud_dialog)) {
     NOTREACHED();
     return OnError();
   }
 
   bool print_to_cloud = job_settings.HasKey(kSettingCloudPrintId);
   bool open_in_external_preview =
       job_settings.HasKey(kSettingOpenPDFInPreview);
 
   return UpdatePrinterSettings(
       print_to_pdf || is_cloud_dialog || print_to_cloud,
       open_in_external_preview);
 }
 
 }  // namespace printing