Implement window.print() on Android

chrome/browser/printing/printing_message_filter.h

Index: chrome/browser/printing/printing_message_filter.h
diff --git a/chrome/browser/printing/printing_message_filter.h b/chrome/browser/printing/printing_message_filter.h
index 1662c000fb830774ee99b875b4b87aadf86b5de7..ecf4a78a12b6fc59f8906e007022db629f349462 100644
--- a/chrome/browser/printing/printing_message_filter.h
+++ b/chrome/browser/printing/printing_message_filter.h
@@ -97,6 +97,8 @@ class PrintingMessageFilter : public content::BrowserMessageFilter {
                        IPC::Message* reply_msg);
   void OnScriptedPrintReply(scoped_refptr<PrinterQuery> printer_query,
                             IPC::Message* reply_msg);
+  void OnSystemSpecificReply(scoped_refptr<PrinterQuery> printer_query,
+                            IPC::Message* reply_msg);
 
   // Modify the current print settings based on |job_settings|. The task is
   // handled by the print worker thread and the UI thread. The reply occurs on
@@ -107,6 +109,7 @@ class PrintingMessageFilter : public content::BrowserMessageFilter {
   void OnUpdatePrintSettingsReply(scoped_refptr<PrinterQuery> printer_query,
                                   IPC::Message* reply_msg);
 
+
 #if defined(ENABLE_PRINT_PREVIEW)
   // Check to see if print preview has been cancelled.
   void OnCheckForCancel(int32 preview_ui_id,