Reland "Added an extra sync token field for extra command buffer..."

tools/ipc_fuzzer/fuzzer/fuzzer.cc

 // Copyright 2015 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 <iostream>
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1186 matching lines @@
     return true;
   }
 };
 
 template <>
 struct FuzzTraits<gpu::SyncToken> {
   static bool Fuzz(gpu::SyncToken* p, Fuzzer* fuzzer) {
     bool verified_flush = false;
     gpu::CommandBufferNamespace namespace_id =
         gpu::CommandBufferNamespace::INVALID;
+    int32_t extra_data_field = 0;
     uint64_t command_buffer_id = 0;
     uint64_t release_count = 0;
 
     if (!FuzzParam(&verified_flush, fuzzer))
       return false;
     if (!FuzzParam(&namespace_id, fuzzer))
       return false;
+    if (!FuzzParam(&extra_data_field, fuzzer))
+      return false;
     if (!FuzzParam(&command_buffer_id, fuzzer))
       return false;
     if (!FuzzParam(&release_count, fuzzer))
       return false;
 
     p->Clear();
-    p->Set(namespace_id, command_buffer_id, release_count);
+    p->Set(namespace_id, extra_data_field, command_buffer_id, release_count);
     if (verified_flush)
       p->SetVerifyFlush();
     return true;
   }
 };
 
 template <>
 struct FuzzTraits<gpu::MailboxHolder> {
   static bool Fuzz(gpu::MailboxHolder* p, Fuzzer* fuzzer) {
     if (!FuzzParam(&p->mailbox, fuzzer))
@@ skipping 892 matching lines @@
 #include "tools/ipc_fuzzer/message_lib/all_message_null_macros.h"
 #undef IPC_MESSAGE_DECL
 #define IPC_MESSAGE_DECL(kind, type, name, in, out, ilist, olist) \
   (*map)[static_cast<uint32>(name::ID)] = fuzzer_for_##name;
 
 void PopulateFuzzerFunctionMap(FuzzerFunctionMap* map) {
 #include "tools/ipc_fuzzer/message_lib/all_messages.h"
 }
 
 }  // namespace ipc_fuzzer