Fix up some types in the API.

ppapi/c/ppb_url_request_info.h

 /* Copyright (c) 2010 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.
  */
 #ifndef PPAPI_C_PPB_URL_REQUEST_INFO_H_
 #define PPAPI_C_PPB_URL_REQUEST_INFO_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
@@ skipping 69 matching lines @@
   PP_Bool (*SetProperty)(PP_Resource request,
                          PP_URLRequestProperty property,
                          struct PP_Var value);
 
   // Append data to the request body.
   //
   // A Content-Length request header will be automatically generated.
   //
   // Returns PP_FALSE if any of the parameters are invalid, PP_TRUE on success.
   PP_Bool (*AppendDataToBody)(PP_Resource request,
-                              const char* data,
+                              const void* data,
                               uint32_t len);
 
   // Append a file reference to be uploaded.
   //
   // A sub-range of the file starting from start_offset may be specified.  If
   // number_of_bytes is -1, then the sub-range to upload extends to the end of
   // the file.
   //
   // An optional (non-zero) last modified time stamp may be provided, which
   // will be used to validate that the file was not modified since the given
   // time before it is uploaded.  The upload will fail with an error code of
   // PP_Error_FileChanged if the file has been modified since the given time.
   // If expected_last_modified_time is 0, then no validation is performed.
   //
   // A Content-Length request header will be automatically generated.
   //
   // Returns PP_FALSE if any of the parameters are invalid, PP_TRUE on success.
   PP_Bool (*AppendFileToBody)(PP_Resource request,
                               PP_Resource file_ref,
                               int64_t start_offset,
                               int64_t number_of_bytes,
                               PP_Time expected_last_modified_time);
 };
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PPB_URL_REQUEST_INFO_H_ */