Add support to send print preset options in one message

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 601e24328b242b15019a3412588d40bfdc61868c..1e2e0bdd032c6f1f6ea5094a8c097863fa292946 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
@@ -602,8 +602,11 @@ void PrintPreviewUI::OnReloadPrintersList() {
   web_ui()->CallJavascriptFunction("reloadPrintersList");
 }
 
-void PrintPreviewUI::OnPrintPreviewScalingDisabled() {
-  web_ui()->CallJavascriptFunction("printScalingDisabledForSourcePDF");
+void PrintPreviewUI::OnSetOptionsFromDocument(
+    const PrintHostMsg_SetOptionsFromDocument_Params& params) {
+  // Notify WebUI that print scaling is disabled
+  if (params.is_scaling_disabled)
+    web_ui()->CallJavascriptFunction("printScalingDisabledForSourcePDF");
 }
 
 // static