Remove 'char' from IDL

ppapi/c/private/ppb_net_address_private.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 private/ppb_net_address_private.idl,
  *   modified Mon Jun 24 09:52:39 2013.
  */
 
 #ifndef PPAPI_C_PRIVATE_PPB_NET_ADDRESS_PRIVATE_H_
@@ skipping 42 matching lines @@
 /**
  * @addtogroup Structs
  * @{
  */
 /**
  * This is an opaque type holding a network address. Plugins must
  * never access members of this struct directly.
  */
 struct PP_NetAddress_Private {
   uint32_t size;
-  char data[128];
+  int8_t data[128];
 };
 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_NetAddress_Private, 132);
 /**
  * @}
  */
 
 /**
  * @addtogroup Interfaces
  * @{
  */
@@ skipping 104 matching lines @@
   PP_Bool (*GetAddress)(const struct PP_NetAddress_Private* addr,
                         void* address,
                         uint16_t address_size);
 };
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PRIVATE_PPB_NET_ADDRESS_PRIVATE_H_ */