Print Preview: Handling pending print to pdf requests.

chrome/browser/ui/webui/print_preview_data_source.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 "chrome/browser/ui/webui/print_preview_data_source.h"
 
 #include <algorithm>
 
 #include "base/message_loop.h"
 #include "base/string_number_conversions.h"
@@ skipping 42 matching lines @@
                      IDS_PRINT_PREVIEW_INVALID_PRINTER_SETTINGS);
   AddLocalizedString("initiatorTabCrashed",
                      IDS_PRINT_PREVIEW_INITIATOR_TAB_CRASHED);
   AddLocalizedString("initiatorTabClosed",
                      IDS_PRINT_PREVIEW_INITIATOR_TAB_CLOSED);
   AddLocalizedString("reopenPage", IDS_PRINT_PREVIEW_REOPEN_PAGE);
 
   AddLocalizedString("printButton", IDS_PRINT_PREVIEW_PRINT_BUTTON);
   AddLocalizedString("cancelButton", IDS_PRINT_PREVIEW_CANCEL_BUTTON);
   AddLocalizedString("printing", IDS_PRINT_PREVIEW_PRINTING);
+  AddLocalizedString("printingToPDFInProgress",
+                     IDS_PRINT_PREVIEW_PRINTING_TO_PDF_IN_PROGRESS);
 
   AddLocalizedString("destinationLabel", IDS_PRINT_PREVIEW_DESTINATION_LABEL);
   AddLocalizedString("copiesLabel", IDS_PRINT_PREVIEW_COPIES_LABEL);
   AddLocalizedString("examplePageRangeText",
                      IDS_PRINT_PREVIEW_EXAMPLE_PAGE_RANGE_TEXT);
   AddLocalizedString("layoutLabel", IDS_PRINT_PREVIEW_LAYOUT_LABEL);
   AddLocalizedString("optionAllPages", IDS_PRINT_PREVIEW_OPTION_ALL_PAGES);
   AddLocalizedString("optionBw", IDS_PRINT_PREVIEW_OPTION_BW);
   AddLocalizedString("optionCollate", IDS_PRINT_PREVIEW_OPTION_COLLATE);
   AddLocalizedString("optionColor", IDS_PRINT_PREVIEW_OPTION_COLOR);
@@ skipping 73 matching lines @@
           url_substr[0], page_index, &data);
   }
   if (data.get()) {
     SendResponse(request_id, data);
     return;
   }
   // Invalid request.
   scoped_refptr<RefCountedBytes> empty_bytes(new RefCountedBytes);
   SendResponse(request_id, empty_bytes);
 }