Add support to send print preset options in one message

chrome/renderer/printing/print_web_view_helper.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/renderer/printing/print_web_view_helper.h"
 
 #include <string>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 1007 matching lines @@
       Send(new PrintHostMsg_PrintPreviewInvalidPrinterSettings(
           routing_id(),
           print_pages_params_ ?
               print_pages_params_->params.document_cookie : 0));
       notify_browser_of_print_failure_ = false;  // Already sent.
     }
     DidFinishPrinting(FAIL_PREVIEW);
     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;
 
   // PDF printer device supports alpha blending.
   print_pages_params_->params.supports_alpha_blend = true;
 
   bool generate_draft_pages = false;
   if (!settings.GetBoolean(kSettingGenerateDraftData,
                            &generate_draft_pages)) {
@@ skipping 414 matching lines @@
   const PrintMsg_Print_Params& params = print_pages_params_->params;
   PrepareFrameAndViewForPrint prepare(params, frame, node, ignore_css_margins_);
   prepare.StartPrinting();
 
   Send(new PrintHostMsg_DidGetDocumentCookie(routing_id(),
                                              params.document_cookie));
   *number_of_pages = prepare.GetExpectedPageCount();
   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,
     const base::DictionaryValue& passed_job_settings) {
   DCHECK(is_preview_enabled_);
   const base::DictionaryValue* job_settings = &passed_job_settings;
   base::DictionaryValue modified_job_settings;
   if (job_settings->empty()) {
     if (!print_for_preview_)
       print_preview_context_.set_error(PREVIEW_ERROR_BAD_SETTING);
@@ skipping 543 matching lines @@
 }
 
 void PrintWebViewHelper::PrintPreviewContext::ClearContext() {
   prep_frame_view_.reset();
   metafile_.reset();
   pages_to_render_.clear();
   error_ = PREVIEW_ERROR_NONE;
 }
 
 }  // namespace printing