Disallow redundant Bind calls.

chrome/browser/extensions/api/dial/dial_service.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 "chrome/browser/extensions/api/dial/dial_service.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <set>
@@ skipping 431 matching lines @@
   net::IPAddressList chrome_os_address_list;
   InsertBestBindAddressChromeOS(chromeos::NetworkTypePattern::Ethernet(),
                                 &chrome_os_address_list);
   InsertBestBindAddressChromeOS(chromeos::NetworkTypePattern::WiFi(),
                                 &chrome_os_address_list);
   DiscoverOnAddresses(chrome_os_address_list);
 
 #else
   BrowserThread::PostTaskAndReplyWithResult(
       BrowserThread::FILE, FROM_HERE, base::Bind(&GetNetworkListOnFileThread),
-      base::Bind(base::Bind(&DialServiceImpl::SendNetworkList,
-                            weak_factory_.GetWeakPtr())));
+      base::Bind(&DialServiceImpl::SendNetworkList,
+                 weak_factory_.GetWeakPtr()));
 #endif
 }
 
 void DialServiceImpl::SendNetworkList(const NetworkInterfaceList& networks) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   using InterfaceIndexAddressFamily = std::pair<uint32_t, net::AddressFamily>;
   std::set<InterfaceIndexAddressFamily> interface_index_addr_family_seen;
   net::IPAddressList ip_addresses;
 
   // Binds a socket to each IPv4 network interface found. Note that
@@ skipping 146 matching lines @@
 
 bool DialServiceImpl::HasOpenSockets() {
   for (const auto& socket : dial_sockets_) {
     if (!socket->IsClosed())
       return true;
   }
   return false;
 }
 
 }  // namespace extensions