Move settings setup for PDF and cloud print into single location in PrintingContext

printing/print_settings.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 "printing/print_settings.h"
 
 #include "base/atomic_sequence_num.h"
 #include "base/logging.h"
 #include "printing/print_job_constants.h"
 #include "printing/units.h"
@@ skipping 122 matching lines @@
   landscape_ = false;
   supports_alpha_blend_ = true;
   should_print_backgrounds_ = false;
   collate_ = false;
   color_ = UNKNOWN_COLOR_MODEL;
   copies_ = 0;
   duplex_mode_ = UNKNOWN_DUPLEX_MODE;
 }
 
 void PrintSettings::SetPrinterPrintableArea(
-    gfx::Size const& physical_size_device_units,
-    gfx::Rect const& printable_area_device_units,
-    int units_per_inch,
+    const gfx::Size& physical_size_device_units,
+    const gfx::Rect& printable_area_device_units,
     bool landscape_needs_flip) {
+  int units_per_inch = device_units_per_inch();
   int header_footer_text_height = 0;
   if (display_header_footer_) {
     // Hard-code text_height = 0.5cm = ~1/5 of inch.
     header_footer_text_height = ConvertUnit(kSettingHeaderFooterInterstice,
                                             kPointsPerInch, units_per_inch);
   }
 
   PageMargins margins;
   switch (margin_type_) {
     case DEFAULT_MARGINS: {
@@ skipping 68 matching lines @@
 }
 
 void PrintSettings::SetOrientation(bool landscape) {
   if (landscape_ != landscape) {
     landscape_ = landscape;
     page_setup_device_units_.FlipOrientation();
   }
 }
 
 }  // namespace printing