[Chrome] Support NumCopies print preset

ppapi/c/dev/pp_print_settings_dev.h

 /* 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.
  */
 
 /* From dev/pp_print_settings_dev.idl modified Wed Jun 13 09:14:31 2012. */
 
 #ifndef PPAPI_C_DEV_PP_PRINT_SETTINGS_DEV_H_
 #define PPAPI_C_DEV_PP_PRINT_SETTINGS_DEV_H_
 
@@ skipping 29 matching lines @@
   PP_PRINTOUTPUTFORMAT_EMF = 1u << 3
 } PP_PrintOutputFormat_Dev;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_PrintOutputFormat_Dev, 4);
 
 typedef enum {
   PP_PRINTSCALINGOPTION_NONE = 0,
   PP_PRINTSCALINGOPTION_FIT_TO_PRINTABLE_AREA = 1,
   PP_PRINTSCALINGOPTION_SOURCE_SIZE = 2
 } PP_PrintScalingOption_Dev;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_PrintScalingOption_Dev, 4);
+
+typedef enum {
+  PP_PRINTDUPLEXMODE_NONE = 0,
+  PP_PRINTDUPLEXMODE_SIMPLEX = 1,
+  PP_PRINTDUPLEXMODE_LONG_EDGE = 2,
+  PP_PRINTDUPLEXMODE_SHORT_EDGE = 3
+} PP_PrintDuplexMode_Dev;
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_PrintDuplexMode_Dev, 4);
 /**
  * @}
  */
 
 /**
  * @addtogroup Structs
  * @{
  */
 struct PP_PrintSettings_Dev {
   /** This is the size of the printable area in points (1/72 of an inch). */
   struct PP_Rect printable_area;
   struct PP_Rect content_area;
   struct PP_Size paper_size;
   int32_t dpi;
   PP_PrintOrientation_Dev orientation;
   PP_PrintScalingOption_Dev print_scaling_option;
   PP_Bool grayscale;
   /** Note that Chrome currently only supports PDF printing. */
   PP_PrintOutputFormat_Dev format;
 };
 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_PrintSettings_Dev, 60);
+
+struct PP_PrintRange_Dev {
+  int32_t from;
+  int32_t to;
+};
+PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_PrintRange_Dev, 8);
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_DEV_PP_PRINT_SETTINGS_DEV_H_ */