Implement window.print() on Android

chrome/browser/printing/print_job_worker.h

Index: chrome/browser/printing/print_job_worker.h
diff --git a/chrome/browser/printing/print_job_worker.h b/chrome/browser/printing/print_job_worker.h
index a8378bb2353de2cd98746c087bfb5e02a595bba6..38c2340b0366bdb2eae04c2bf2f4ba62f7406b3f 100644
--- a/chrome/browser/printing/print_job_worker.h
+++ b/chrome/browser/printing/print_job_worker.h
@@ -39,10 +39,12 @@ class PrintJobWorker {
 
   void SetNewOwner(PrintJobWorkerOwner* new_owner);
 
-  // Initializes the print settings. If |ask_user_for_settings| is true, a
-  // Print... dialog box will be shown to ask the user his preference.
+  // Initializes the print settings. If |ask_settings_type| is ASK_USER, a
+  // Print... dialog box will be shown by the browser to ask the user his
+  // preference. If it is SYSTEM_SPECIFIC, showing that dialog box will be
+  // delegated to the system.
   void GetSettings(
-      bool ask_user_for_settings,
+      GetSettingsAskParam ask_settings_type,
       int document_page_count,
       bool has_selection,
       MarginType margin_type);
@@ -54,6 +56,9 @@ class PrintJobWorker {
   // available. Makes sure the new_document is the right one.
   void StartPrinting(PrintedDocument* new_document);
 
+  // TODO DGN Doc
+  void ShowSystemDialog();
+
   // Updates the printed document.
   void OnDocumentChanged(PrintedDocument* new_document);