Print Preview: Support the duplex preset in PDFs.

ppapi/c/dev/pp_print_settings_dev.h

Index: ppapi/c/dev/pp_print_settings_dev.h
diff --git a/ppapi/c/dev/pp_print_settings_dev.h b/ppapi/c/dev/pp_print_settings_dev.h
index 12531902b9d3151da545511cd6f310576d988638..5c67334a3700a9abaade31eb95a8d1e8e82649b1 100644
--- a/ppapi/c/dev/pp_print_settings_dev.h
+++ b/ppapi/c/dev/pp_print_settings_dev.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From dev/pp_print_settings_dev.idl modified Fri Jan 16 13:30:14 2015. */
+/* From dev/pp_print_settings_dev.idl modified Tue Mar  3 20:25:04 2015. */
 
 #ifndef PPAPI_C_DEV_PP_PRINT_SETTINGS_DEV_H_
 #define PPAPI_C_DEV_PP_PRINT_SETTINGS_DEV_H_
@@ -47,6 +47,14 @@ typedef enum {
   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_SHORT_EDGE = 2,
+  PP_PRINTDUPLEXMODE_LONG_EDGE = 3
+} PP_PrintDuplexMode_Dev;
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_PrintDuplexMode_Dev, 4);
 /**
  * @}
  */