Remove unused code

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"
 #include "printing/print_job_constants.h"
 #include "printing/print_settings_conversion.h"
 #include "printing/units.h"
 
 namespace printing {
 
 namespace {
 const float kCloudPrintMarginInch = 0.25;
 }
 
 PrintingContext::PrintingContext(Delegate* delegate)
     : delegate_(delegate),
-      dialog_box_dismissed_(false),
       in_print_job_(false),
       abort_printing_(false) {
   CHECK(delegate_);
 }
 
 PrintingContext::~PrintingContext() {
 }
 
 void PrintingContext::set_margin_type(MarginType type) {
   DCHECK(type != CUSTOM_MARGINS);
   settings_.set_margin_type(type);
 }
 
 void PrintingContext::ResetSettings() {
   ReleaseContext();
 
   settings_.Clear();
 
   in_print_job_ = false;
-  dialog_box_dismissed_ = false;
   abort_printing_ = false;
 }
 
 PrintingContext::Result PrintingContext::OnError() {
   Result result = abort_printing_ ? CANCEL : FAILED;
   ResetSettings();
   return result;
 }
 
 PrintingContext::Result PrintingContext::UsePdfSettings() {
@@ skipping 61 matching lines @@
   }
 
   bool show_system_dialog = false;
   job_settings.GetBoolean(printing::kSettingShowSystemDialog,
                           &show_system_dialog);
 
   return UpdatePrinterSettings(open_in_external_preview, show_system_dialog);
 }
 
 }  // namespace printing