experiment with -Wimplicit-fallthrough

net/socket/ssl_client_socket_pool.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/socket/ssl_client_socket_pool.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
@@ skipping 120 matching lines @@
                            base::Unretained(this))) {}
 
 SSLConnectJob::~SSLConnectJob() {}
 
 LoadState SSLConnectJob::GetLoadState() const {
   switch (next_state_) {
     case STATE_TUNNEL_CONNECT_COMPLETE:
       if (transport_socket_handle_->socket())
         return LOAD_STATE_ESTABLISHING_PROXY_TUNNEL;
       // else, fall through.
+      FALLTHROUGH_INTENDED;
     case STATE_TRANSPORT_CONNECT:
     case STATE_TRANSPORT_CONNECT_COMPLETE:
     case STATE_SOCKS_CONNECT:
     case STATE_SOCKS_CONNECT_COMPLETE:
     case STATE_TUNNEL_CONNECT:
       return transport_socket_handle_->GetLoadState();
     case STATE_SSL_CONNECT:
     case STATE_SSL_CONNECT_COMPLETE:
       return LOAD_STATE_SSL_HANDSHAKE;
     default:
@@ skipping 526 matching lines @@
   if (base_.CloseOneIdleSocket())
     return true;
   return base_.CloseOneIdleConnectionInHigherLayeredPool();
 }
 
 void SSLClientSocketPool::OnSSLConfigChanged() {
   FlushWithError(ERR_NETWORK_CHANGED);
 }
 
 }  // namespace net