Add support to send print preset options in one message

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 76db5846a5b8b87ebe500ffbf0cbfd0768bd6c76..777eb69fa183c52236578b34969c60e803511b5e 100644
--- a/chrome/renderer/printing/print_web_view_helper.cc
+++ b/chrome/renderer/printing/print_web_view_helper.cc
@@ -1025,13 +1025,13 @@ void PrintWebViewHelper::OnPrintPreview(const base::DictionaryValue& settings) {
     return;
   }
 
-  // If we are previewing a pdf and the print scaling is disabled, send a
+  // Set the options from document if we are previewing a pdf and send a
   // message to browser.
   if (print_pages_params_->params.is_first_request &&
-      !print_preview_context_.IsModifiable() &&
-      print_preview_context_.source_frame()->isPrintScalingDisabledForPlugin(
-          print_preview_context_.source_node())) {
-    Send(new PrintHostMsg_PrintPreviewScalingDisabled(routing_id()));
+      !print_preview_context_.IsModifiable()) {
+    PrintHostMsg_SetOptionsFromDocument_Params params;
+    SetOptionsFromDocument(params);
+    Send(new PrintHostMsg_SetOptionsFromDocument(routing_id(), params));
   }
 
   is_print_ready_metafile_sent_ = false;
@@ -1466,6 +1466,15 @@ bool PrintWebViewHelper::CalculateNumberOfPages(blink::WebLocalFrame* frame,
   return true;
 }
 
+void PrintWebViewHelper::SetOptionsFromDocument(
+    PrintHostMsg_SetOptionsFromDocument_Params& params) {
+  blink::WebLocalFrame* source_frame = print_preview_context_.source_frame();
+  const blink::WebNode& source_node = print_preview_context_.source_node();
+
+  params.is_scaling_disabled =
+      source_frame->isPrintScalingDisabledForPlugin(source_node);
+}
+
 bool PrintWebViewHelper::UpdatePrintSettings(
     blink::WebLocalFrame* frame,
     const blink::WebNode& node,