[JS Changes] Support NumCopies print preset

chrome/browser/ui/webui/print_preview/print_preview_ui.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_ui.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
index 7d9e944f4f7085e870f77e415761fb18a490753b..e57942941d168f3a65a7f65b19e1cb56f889c383 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
@@ -628,9 +628,11 @@ void PrintPreviewUI::OnReloadPrintersList() {
 
 void PrintPreviewUI::OnSetOptionsFromDocument(
     const PrintHostMsg_SetOptionsFromDocument_Params& params) {
-  // Notify WebUI that print scaling is disabled
-  if (params.is_scaling_disabled)
-    web_ui()->CallJavascriptFunction("printScalingDisabledForSourcePDF");
+  base::DictionaryValue options;
+  options.SetBoolean(printing::kSettingDisableScaling,
+                     params.is_scaling_disabled);
+  options.SetInteger(printing::kSettingCopies, params.copies);
+  web_ui()->CallJavascriptFunction("printPresetOptionsFromDocument", options);
 }
 
 // static