Update from https://crrev.com/303153

gpu/ipc/gpu_command_buffer_traits.cc

 // 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.
 
 #include "gpu/ipc/gpu_command_buffer_traits.h"
 #include "gpu/command_buffer/common/mailbox_holder.h"
 
 namespace IPC {
 
 void ParamTraits<gpu::CommandBuffer::State> ::Write(Message* m,
                                                     const param_type& p) {
-  WriteParam(m, p.num_entries);
   WriteParam(m, p.get_offset);
-  WriteParam(m, p.put_offset);
   WriteParam(m, p.token);
   WriteParam(m, static_cast<int32>(p.error));
   WriteParam(m, p.generation);
 }
 
 bool ParamTraits<gpu::CommandBuffer::State> ::Read(const Message* m,
                                                    PickleIterator* iter,
                                                    param_type* p) {
   int32 temp;
-  if (ReadParam(m, iter, &p->num_entries) &&
-      ReadParam(m, iter, &p->get_offset) &&
-      ReadParam(m, iter, &p->put_offset) &&
+  if (ReadParam(m, iter, &p->get_offset) &&
       ReadParam(m, iter, &p->token) &&
       ReadParam(m, iter, &temp) &&
       ReadParam(m, iter, &p->generation)) {
     p->error = static_cast<gpu::error::Error>(temp);
     return true;
   } else {
     return false;
   }
 }
 
@@ skipping 37 matching lines @@
     return false;
   return true;
 }
 
 void ParamTraits<gpu::MailboxHolder>::Log(const param_type& p, std::string* l) {
   ParamTraits<gpu::Mailbox>::Log(p.mailbox, l);
   *l += base::StringPrintf(":%04x@%d", p.texture_target, p.sync_point);
 }
 
 }  // namespace IPC