[CUPS] Add a "Manage..." button in the local destinations section of Print Preview Dialog on Chrome…

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 68 matching lines @@
 #include "printing/backend/print_backend_consts.h"
 #include "printing/pdf_render_settings.h"
 #include "printing/print_settings.h"
 #include "printing/printing_context.h"
 #include "printing/units.h"
 #include "third_party/icu/source/i18n/unicode/ulocdata.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/settings/device_oauth2_token_service.h"
 #include "chrome/browser/chromeos/settings/device_oauth2_token_service_factory.h"
+#include "chrome/common/url_constants.h"
 #endif
 
 #if defined(ENABLE_SERVICE_DISCOVERY)
 #include "chrome/browser/printing/cloud_print/privet_constants.h"
 #endif
 
 using content::BrowserThread;
 using content::RenderViewHost;
 using content::WebContents;
 
@@ skipping 1062 matching lines @@
                  weak_factory_.GetWeakPtr()));
 
   // Cancel the pending preview request if exists.
   print_preview_ui()->OnCancelPendingPreviewRequest();
 }
 #endif  // ENABLE_BASIC_PRINTING
 
 void PrintPreviewHandler::HandleManagePrinters(
     const base::ListValue* /*args*/) {
   ++manage_printers_dialog_request_count_;
+#if defined(OS_CHROMEOS)
+  GURL local_printers_manage_url(chrome::kChromeUIMdCupsSettingsURL);
+  preview_web_contents()->OpenURL(
+      content::OpenURLParams(local_printers_manage_url, content::Referrer(),
+                             WindowOpenDisposition::NEW_FOREGROUND_TAB,
+                             ui::PAGE_TRANSITION_LINK, false));
+#else
   printing::PrinterManagerDialog::ShowPrinterManagerDialog();
+#endif
 }
 
 void PrintPreviewHandler::HandleClosePreviewDialog(
     const base::ListValue* /*args*/) {
   ReportStats();
   ReportUserActionHistogram(CANCEL);
 
   // Record the number of times the user requests to regenerate preview data
   // before cancelling.
   UMA_HISTOGRAM_COUNTS("PrintPreview.RegeneratePreviewRequest.BeforeCancel",
@@ skipping 574 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;
 }