Print Preview: Handling pending print to pdf requests.

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definitions of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 6020 matching lines @@
       </message>
       <message name="IDS_PRINT_PREVIEW_REOPEN_PAGE" desc="Text for button displayed when print preview fails because the user closed the tab that initiated the print preview. Clicking the button reopens the page that was closed.">
         Reopen the page
       </message>
       <message name="IDS_PRINT_PREVIEW_PRINT_BUTTON" desc="Print button.">
         Print
       </message>
       <message name="IDS_PRINT_PREVIEW_PRINTING" desc="Text shown after the user clicks on the print button and before the print preview tab is closed to let him know that printing is in progress.">
         Printing...
       </message>
+      <message name="IDS_PRINT_PREVIEW_PRINTING_TO_PDF_IN_PROGRESS" desc="Text shown after the user clicks on the print button while Print To PDF is selected, but the PDF file is not ready yet.">
+        Printing to PDF in progress
+      </message>
       <message name="IDS_PRINT_PREVIEW_CANCEL_BUTTON" desc="Cancel button.">
         Cancel
       </message>
       <message name="IDS_PRINT_PREVIEW_OPTION_ALL_PAGES" desc="Option to print all pages.">
         All
       </message>
       <message name="IDS_PRINT_PREVIEW_DESTINATION_LABEL" desc="Destination option label. It is displayed right on top of the available printers list.">
         Destination
       </message>
       <message name="IDS_PRINT_PREVIEW_OPTION_BW" desc="Option to print in black and white.">
@@ skipping 7688 matching lines @@
     </messages>
     <structures fallback_to_english="true">
       <!-- Make sure these stay in sync with the structures in generated_resources.grd. -->
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
   </release>
 </grit>