[CUPS] Implement the enterprise icon for printers in Print Preview Dialog.

chrome/browser/ui/webui/print_preview/print_preview_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/browser/ui/webui/print_preview/print_preview_handler.h"
 
 #include <ctype.h>
 #include <stddef.h>
 
 #include <map>
@@ skipping 405 matching lines @@
     const std::string& printer_name = printer_name_description.first;
     const std::string& printer_description = printer_name_description.second;
     printer_info->SetString(printing::kSettingPrinterName, printer_name);
     printer_info->SetString(printing::kSettingPrinterDescription,
                             printer_description);
 
     auto options = base::MakeUnique<base::DictionaryValue>();
     for (const auto opt_it : printer.options)
       options->SetString(opt_it.first, opt_it.second);
 
+    printer_info->SetBoolean(
+        kCUPSEnterprisePrinter,
+        base::ContainsKey(printer.options, kCUPSEnterprisePrinter) &&
+            printer.options.at(kCUPSEnterprisePrinter) == kValueTrue);
+
     printer_info->Set(printing::kSettingPrinterOptions, std::move(options));
 
     printers->Append(std::move(printer_info));
 
     VLOG(1) << "Found printer " << printer_name << " with device name "
             << printer.printer_name;
   }
 }
 
 base::LazyInstance<printing::StickySettings> g_sticky_settings =
@@ skipping 1356 matching lines @@
 
 void PrintPreviewHandler::UnregisterForGaiaCookieChanges() {
   if (gaia_cookie_manager_service_)
     gaia_cookie_manager_service_->RemoveObserver(this);
 }
 
 void PrintPreviewHandler::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   pdf_file_saved_closure_ = closure;
 }