Clear memory of broker related structs sent over the new Mojo EDK.

mojo/edk/system/child_broker_host.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 "mojo/edk/system/child_broker_host.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 56 matching lines @@
 
 base::ProcessId ChildBrokerHost::GetProcessId() {
   return process_id_;
 }
 
 void ChildBrokerHost::ConnectToProcess(base::ProcessId process_id,
                                        ScopedPlatformHandle pipe) {
   if (!child_channel_)
     return;  // Can happen at process shutdown on Windows.
   ConnectToProcessMessage data;
+  memset(&data, 0, sizeof(data));
   data.type = CONNECT_TO_PROCESS;
   data.process_id = process_id;
   scoped_ptr<MessageInTransit> message(new MessageInTransit(
       MessageInTransit::Type::MESSAGE, sizeof(data), &data));
   scoped_refptr<Dispatcher> dispatcher =
       PlatformHandleDispatcher::Create(std::move(pipe));
   internal::g_core->AddDispatcher(dispatcher);
   scoped_ptr<DispatcherVector> dispatchers(new DispatcherVector);
   dispatchers->push_back(dispatcher);
   message->SetDispatchers(std::move(dispatchers));
   message->SerializeAndCloseDispatchers();
   message->set_route_id(kBrokerRouteId);
   child_channel_->channel()->WriteMessage(std::move(message));
 }
 
 void ChildBrokerHost::ConnectMessagePipe(uint64_t pipe_id,
                                          base::ProcessId process_id) {
   if (!child_channel_)
     return;  // Can happen at process shutdown on Windows.
   PeerPipeConnectedMessage data;
+  memset(&data, 0, sizeof(data));
   data.type = PEER_PIPE_CONNECTED;
   data.pipe_id = pipe_id;
   data.process_id = process_id;
   scoped_ptr<MessageInTransit> message(new MessageInTransit(
       MessageInTransit::Type::MESSAGE, sizeof(data), &data));
   message->set_route_id(kBrokerRouteId);
   child_channel_->channel()->WriteMessage(std::move(message));
 }
 
 ChildBrokerHost::~ChildBrokerHost() {
@@ skipping 198 matching lines @@
   BOOL result = DuplicateHandle(child_process_.Handle(), handle,
                                 base::GetCurrentProcessHandle(), &rv, 0, FALSE,
                                 DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
   DCHECK(result);
   return rv;
 }
 #endif
 
 }  // namespace edk
 }  // namespace mojo