Fix a bunch of tiny near-bugs and bugs that static analysis identified...

chrome/browser/net/dns_host_info.h

 // Copyright (c) 2006-2008 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.
 
 // A DnsHostInfo object is used to store status of a Dns lookup of a specific
 // hostname.
 // It includes progress, from placement in the DnsMaster's queue, to resolution
 // by the DNS service as either FOUND or NO_SUCH_NAME.
 
 #ifndef CHROME_BROWSER_NET_DNS_HOST_INFO_H_
@@ skipping 60 matching lines @@
   static const base::TimeDelta kNullDuration;
 
   // DnsHostInfo are usually made by the default constructor during
   // initializing of the DnsMaster's map (of info for Hostnames).
   DnsHostInfo()
       : state_(PENDING),
         resolve_duration_(kNullDuration),
         queue_duration_(kNullDuration),
         benefits_remaining_(),
         sequence_number_(0),
+        motivation_(NO_PREFETCH_MOTIVATION),
         was_linked_(false) {
   }
 
   ~DnsHostInfo() {}
 
   // NeedDnsUpdate decides, based on our internal info,
   // if it would be valuable to attempt to update (prefectch)
   // DNS data for hostname.  This decision is based
   // on how recently we've done DNS prefetching for hostname.
   bool NeedsDnsUpdate(const std::string& hostname);
@@ skipping 92 matching lines @@
   std::string referring_hostname_;
 
   // We put these objects into a std::map, and hence we
   // need some "evil" constructors.
   // DISALLOW_COPY_AND_ASSIGN(DnsHostInfo);
 };
 
 }  // namespace chrome_browser_net
 
 #endif  // CHROME_BROWSER_NET_DNS_HOST_INFO_H_