Implement window.print() on Android

chrome/browser/printing/printing_message_filter.cc

Index: chrome/browser/printing/printing_message_filter.cc
diff --git a/chrome/browser/printing/printing_message_filter.cc b/chrome/browser/printing/printing_message_filter.cc
index 6af14f7f13139f166d1dea644f004294a9b5dcdd..44bdacffde338b0f22c207f5032477a17db2a276 100644
--- a/chrome/browser/printing/printing_message_filter.cc
+++ b/chrome/browser/printing/printing_message_filter.cc
@@ -34,6 +34,7 @@
 
 #if defined(OS_ANDROID)
 #include "base/strings/string_number_conversions.h"
+#include "chrome/browser/android/tab_android.h"
 #include "chrome/browser/printing/print_view_manager_basic.h"
 #include "printing/printing_context_android.h"
 #endif
@@ -280,10 +281,11 @@ void PrintingMessageFilter::OnGetDefaultPrintSettings(IPC::Message* reply_msg) {
   // Loads default settings. This is asynchronous, only the IPC message sender
   // will hang until the settings are retrieved.
   printer_query->GetSettings(
-      PrinterQuery::DEFAULTS,
+      PrinterQuery::GetSettingsAskParam::DEFAULTS,
       0,
       false,
       DEFAULT_MARGINS,
+      true,

[dgn, 2014/12/12 18:42:48]

called from PrintWebViewHelper::CalculateNumberOfPages()
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/renderer/pr...

To be accurate, I would have to transfer is_scripted through
*Msg_GetDefaultPrintSettings too...

       base::Bind(&PrintingMessageFilter::OnGetDefaultPrintSettingsReply,
                  this,
                  printer_query,
@@ -323,11 +325,13 @@ void PrintingMessageFilter::OnScriptedPrint(
     printer_query =
         queue_->CreatePrinterQuery(render_process_id_, reply_msg->routing_id());
   }
+
   printer_query->GetSettings(
-      PrinterQuery::ASK_USER,
+      PrinterQuery::GetSettingsAskParam::ASK_USER,
       params.expected_pages_count,
       params.has_selection,
       params.margin_type,
+      params.is_scripted,
       base::Bind(&PrintingMessageFilter::OnScriptedPrintReply,
                  this,
                  printer_query,