ppapi: Make 0.4 the default for PPP_Printing_Dev, leave backwards-compat

ppapi/native_client/src/shared/ppapi_proxy/ppp_printing.srpc

 # Copyright (c) 2011 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # RPC methods used to implement PPP_Printing calls to the plugin.
 # See ppapi/c/dev/ppp_printing_dev.h for interface details.
 {
  'name': 'PppPrintingRpc',
  'rpcs': [
           {'name': 'PPP_Printing_QuerySupportedFormats',
            'inputs': [['instance', 'PP_Instance'],
                      ],
-           'outputs': [['formats', 'char[]'],         # PP_PrintOutputFormat_Dev array
-                       ['format_count', 'int32_t'],   # uint32_t
+           'outputs': [['formats', 'int32_t'],   # uint32_t
                       ]
           },
           {'name': 'PPP_Printing_Begin',
            'inputs': [['instance', 'PP_Instance'],
                       ['print_settings', 'char[]'],   # PP_PrintSettings_Dev
                      ],
            'outputs': [['pages_required', 'int32_t'],
                       ]
           },
           {'name': 'PPP_Printing_PrintPages',
            'inputs': [['instance', 'PP_Instance'],
                       ['page_ranges', 'char[]'],      # PP_PrintPageNumberRange_Dev
                       ['page_range_count', 'int32_t'],  # uint32_t
                      ],
            'outputs': [['image_data', 'PP_Resource'],
                       ]
           },
           {'name': 'PPP_Printing_End',
            'inputs': [['instance', 'PP_Instance'],
                      ],
            'outputs': [
                       ]
           },
          ]
 }