Fix print settings units conversion for PPB_Printing.

content/browser/renderer_host/pepper/pepper_print_settings_manager.cc

Index: content/browser/renderer_host/pepper/pepper_print_settings_manager.cc
diff --git a/content/browser/renderer_host/pepper/pepper_print_settings_manager.cc b/content/browser/renderer_host/pepper/pepper_print_settings_manager.cc
index aa15c08451aa62fea1410293040099ed1aec9551..d2a18b157f92363d1122d6fdcb5f79661e65e4bb 100644
--- a/content/browser/renderer_host/pepper/pepper_print_settings_manager.cc
+++ b/content/browser/renderer_host/pepper/pepper_print_settings_manager.cc
@@ -17,8 +17,8 @@ namespace {
 // Print units conversion functions.
 int32_t DeviceUnitsInPoints(int32_t device_units,
                             int32_t device_units_per_inch) {
-  return printing::ConvertUnit(device_units, printing::kPointsPerInch,
-                               device_units_per_inch);
+  return printing::ConvertUnit(device_units, device_units_per_inch,
+                               printing::kPointsPerInch);
 }
 
 PP_Size PrintSizeToPPPrintSize(const gfx::Size& print_size,