[Chrome] Support NumCopies print preset

pdf/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/instance.h"
 
 #include <algorithm>  // for min()
 #define _USE_MATH_DEFINES  // for M_PI
 #include <cmath>      // for log() and pow()
 #include <math.h>
@@ skipping 717 matching lines @@
   if (print_settings_.print_pages_called_)
     UserMetricsRecordAction("PDF.PrintPage");
   print_settings_.Clear();
   engine_->PrintEnd();
 }
 
 bool Instance::IsPrintScalingDisabled() {
   return !engine_->GetPrintScaling();
 }
 
+int32_t Instance::GetCopiesToPrint() {
+  return engine_->GetCopiesToPrint();
+}
+
 bool Instance::StartFind(const std::string& text, bool case_sensitive) {
   engine_->StartFind(text.c_str(), case_sensitive);
   return true;
 }
 
 void Instance::SelectFindResult(bool forward) {
   engine_->SelectFindResult(forward);
 }
 
 void Instance::StopFind() {
@@ skipping 1971 matching lines @@
   return instance_->HasScriptableMethod(name, exception);
 }
 
 pp::Var PDFScriptableObject::Call(const pp::Var& method,
                                   const std::vector<pp::Var>& args,
                                   pp::Var* exception) {
   return instance_->CallScriptableMethod(method, args, exception);
 }
 
 }  // namespace chrome_pdf