[Chrome] Support NumCopies print preset

chrome/renderer/printing/print_web_view_helper.cc

Index: chrome/renderer/printing/print_web_view_helper.cc
diff --git a/chrome/renderer/printing/print_web_view_helper.cc b/chrome/renderer/printing/print_web_view_helper.cc
index 1da901d7b8af953062ff14b68286808ca545fcb4..5848d0d0a2c0f9bd7bd7b0ea4533b6913e99082b 100644
--- a/chrome/renderer/printing/print_web_view_helper.cc
+++ b/chrome/renderer/printing/print_web_view_helper.cc
@@ -1033,6 +1033,14 @@ void PrintWebViewHelper::OnPrintPreview(const base::DictionaryValue& settings) {
     Send(new PrintHostMsg_PrintPreviewScalingDisabled(routing_id()));
   }
 
+  // FIXME: Is this right approach?
+  // Send a message to browser if number of copies to be printed information is

[Vitaly Buka (NO REVIEWS), 2014/07/10 01:13:05]

Should be inside of:
if (print_pages_params_->params.is_first_request &&
    !print_preview_context_.IsModifiable() &&

+  // available.
+  int num_copies = print_preview_context_.source_frame()->getNumCopiesForPlugin(
+      print_preview_context_.source_node());
+  if (print_pages_params_->params.is_first_request && num_copies)
+    Send(new PrintHostMsg_PrintPreviewNumCopies(routing_id(), num_copies));

[Nikhil, 2014/07/09 09:36:47]

Is this right approach?

[Vitaly Buka (NO REVIEWS), 2014/07/10 01:13:05]

yes

+
   is_print_ready_metafile_sent_ = false;
 
   // PDF printer device supports alpha blending.