Add a size parameter to SharedMemoryHandle.

ppapi/proxy/nacl_message_scanner.cc

 // Copyright 2013 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.
 
 #include "ppapi/proxy/nacl_message_scanner.h"
 
 #include <stddef.h>
 
 #include <tuple>
 #include <utility>
@@ skipping 51 matching lines @@
   if (handle.type() == SerializedHandle::SHARED_MEMORY) {
     // Now write the handle itself in POSIX style.
     // This serialization must be kept in sync with
     // ParamTraits<SharedMemoryHandle>::Write and
     // ParamTraits<UnguessableToken>::Write.
     if (handle.shmem().IsValid()) {
       msg->WriteBool(true);  // valid == true
       msg->WriteInt(handle_index);
       msg->WriteUInt64(handle.shmem().GetGUID().GetHighForSerialization());
       msg->WriteUInt64(handle.shmem().GetGUID().GetLowForSerialization());
+      msg->WriteUInt64(handle.shmem().GetSize());
     } else {
       msg->WriteBool(false);  // valid == false
     }
   } else if (handle.type() != SerializedHandle::INVALID) {
     // Now write the handle itself in POSIX style.
     // This serialization must be kept in sync with
     // ParamTraits<FileDescriptor>::Write.
     msg->WriteBool(true);  // valid == true
     msg->WriteInt(handle_index);
   }
@@ skipping 490 matching lines @@
             fio_it->second->SetMaxWrittenOffset(offset_it->second);
         }
       }
       break;
     }
   }
 }
 
 }  // namespace proxy
 }  // namespace ppapi