Replace calls to set.count() with ContainsKey in QUIC.

net/quic/quic_session.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 "net/quic/quic_session.h"
 
 #include "base/stl_util.h"
 #include "net/quic/crypto/proof_verifier.h"
 #include "net/quic/quic_connection.h"
 #include "net/quic/quic_flags.h"
@@ skipping 697 matching lines @@
     return false;
   }
   if (id % 2 == next_stream_id_ % 2) {
     // Locally created streams are strictly in-order.  If the id is in the
     // range of created streams and it's not active, it must have been closed.
     return id < next_stream_id_;
   }
   // For peer created streams, we also need to consider implicitly created
   // streams.
   return id <= largest_peer_created_stream_id_ &&
-      implicitly_created_streams_.count(id) == 0;
+      !ContainsKey(implicitly_created_streams_, id);
 }
 
 size_t QuicSession::GetNumOpenStreams() const {
   return stream_map_.size() + implicitly_created_streams_.size();
 }
 
 void QuicSession::MarkWriteBlocked(QuicStreamId id, QuicPriority priority) {
 #ifndef NDEBUG
   ReliableQuicStream* stream = GetStream(id);
   if (stream != nullptr) {
@@ skipping 61 matching lines @@
   for (DataStreamMap::iterator it = stream_map_.begin();
        it != stream_map_.end(); ++it) {
     if (it->second->flow_controller()->IsBlocked()) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace net