[Chrome] Support NumCopies print preset

pdf/out_of_process_instance.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 "pdf/out_of_process_instance.h"
 
 #include <algorithm>  // for min/max()
 #define _USE_MATH_DEFINES  // for M_PI
 #include <cmath>      // for log() and pow()
 #include <math.h>
@@ skipping 958 matching lines @@
 
   pp::CompletionCallback callback =
       print_callback_factory_.NewCallback(&OutOfProcessInstance::OnPrint);
   pp::Module::Get()->core()->CallOnMainThread(0, callback);
 }
 
 void OutOfProcessInstance::OnPrint(int32_t) {
   pp::PDF::Print(this);
 }
 
+void OutOfProcessInstance::SetPrintPresetOptionsFromDocument() {
+  PP_PrintPresetOptions_Dev print_options;
+  print_options.is_scaling_disabled = PP_FromBool(IsPrintScalingDisabled());
+  print_options.copies = engine_->GetCopiesToPrint();
+
+  pp::Printing_Dev::SetPrintPresetOptionsFromDocument(print_options);
+}
+
 void OutOfProcessInstance::SubmitForm(const std::string& url,
                                       const void* data,
                                       int length) {
   pp::URLRequestInfo request(this);
   request.SetURL(url);
   request.SetMethod("POST");
   request.AppendDataToBody(reinterpret_cast<const char*>(data), length);
 
   pp::CompletionCallback callback =
       form_factory_.NewCallback(&OutOfProcessInstance::FormDidOpen);
@@ skipping 73 matching lines @@
 
   DCHECK(document_load_state_ == LOAD_STATE_LOADING);
   document_load_state_ = LOAD_STATE_COMPLETE;
   UserMetricsRecordAction("PDF.LoadSuccess");
 
   // Note: If we are in print preview mode the scroll location is retained
   // across document loads so we don't want to scroll again and override it.
   if (IsPrintPreview()) {
     AppendBlankPrintPreviewPages();
     OnGeometryChanged(0, 0);
+    // Set print preset options from pdf document.
+    SetPrintPresetOptionsFromDocument();
   }
 
   pp::VarDictionary message;
   message.Set(pp::Var(kType), pp::Var(kJSLoadProgressType));
   message.Set(pp::Var(kJSProgressPercentage), pp::Var(100)) ;
   PostMessage(message);
 
   if (!full_)
     return;
 
@@ skipping 278 matching lines @@
 pp::Point OutOfProcessInstance::BoundScrollOffsetToDocument(
     const pp::Point& scroll_offset) {
   int max_x = document_size_.width() * zoom_ - plugin_dip_size_.width();
   int x = std::max(std::min(scroll_offset.x(), max_x), 0);
   int max_y = document_size_.height() * zoom_ - plugin_dip_size_.height();
   int y = std::max(std::min(scroll_offset.y(), max_y), 0);
   return pp::Point(x, y);
 }
 
 }  // namespace chrome_pdf