Remove stl_util's deletion functions from remaining quic code.

net/quic/test_tools/quic_stream_factory_peer.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 "net/quic/test_tools/quic_stream_factory_peer.h"
 
 #include <string>
 #include <vector>
 
 #include "net/cert/x509_certificate.h"
@@ skipping 104 matching lines @@
 
 void QuicStreamFactoryPeer::SetYieldAfterDuration(
     QuicStreamFactory* factory,
     QuicTime::Delta yield_after_duration) {
   factory->yield_after_duration_ = yield_after_duration;
 }
 
 size_t QuicStreamFactoryPeer::GetNumberOfActiveJobs(
     QuicStreamFactory* factory,
     const QuicServerId& server_id) {
-  return (factory->active_jobs_[server_id]).size();
+  auto it = factory->active_jobs_.find(server_id);
+  if (it == factory->active_jobs_.end())
+    return 0;
+  return it->second.size();
 }
 
 void QuicStreamFactoryPeer::MaybeInitialize(QuicStreamFactory* factory) {
   factory->MaybeInitialize();
 }
 
 bool QuicStreamFactoryPeer::HasInitializedData(QuicStreamFactory* factory) {
   return factory->has_initialized_data_;
 }
 
@@ skipping 53 matching lines @@
   return &factory->push_promise_index_;
 }
 
 int QuicStreamFactoryPeer::GetNumPushStreamsCreated(
     QuicStreamFactory* factory) {
   return factory->num_push_streams_created_;
 }
 
 }  // namespace test
 }  // namespace net