Add a "Simplify Page" option to the print preview dialog

printing/print_job_constants.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_job_constants.h"
 
 namespace printing {
 
 // True if this is the first preview request.
 const char kIsFirstRequest[] = "isFirstRequest";
@@ skipping 46 matching lines @@
 // Print job duplex mode.
 const char kSettingDuplexMode[] = "duplex";
 
 // Option to fit source page contents to printer paper size: true if
 // selected else false.
 const char kSettingFitToPageEnabled[] = "fitToPageEnabled";
 
 // True, when a new set of draft preview data is required.
 const char kSettingGenerateDraftData[] = "generateDraftData";
 
+// Option to print a distilled page: true if requested, false if not.
+const char kSettingDistillPageEnabled[] = "distillPage";
+
 // Option to print headers and Footers: true if selected, false if not.
 const char kSettingHeaderFooterEnabled[] = "headerFooterEnabled";
 
 // Interstice or gap between different header footer components. Hardcoded to
 // about 0.5cm, match the value in PrintSettings::SetPrinterPrintableArea.
 const float kSettingHeaderFooterInterstice = 14.2f;
 
 // Key that specifies the date of the page that will be printed in the headers
 // and footers.
 const char kSettingHeaderFooterDate[] = "date";
@@ skipping 118 matching lines @@
 const char kGreyscale[] = "Greyscale";
 const char kMonochrome[] = "Monochrome";
 const char kNormal[] = "Normal";
 const char kNormalGray[] = "Normal.Gray";
 const char kRGB[] = "RGB";
 const char kRGBA[] = "RGBA";
 const char kRGB16[] = "RGB16";
 #endif
 
 }  // namespace printing