Add support to send print preset options in one message

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

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 
 #include <map>
 
 #include "base/id_map.h"
 #include "base/lazy_instance.h"
@@ skipping 584 matching lines @@
   if (!delegate)
     return;
   delegate->GetWebDialogDelegate()->OnDialogClosed(std::string());
   delegate->OnDialogCloseFromWebUI();
 }
 
 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.print_scaling_disabled)
+    web_ui()->CallJavascriptFunction("printScalingDisabledForSourcePDF");
 }
 
 // static
 void PrintPreviewUI::SetDelegateForTesting(TestingDelegate* delegate) {
   g_testing_delegate = delegate;
 }