Add missing (and remove superfluous) 'explicit' from constructors.

net/cookies/parsed_cookie.h

 // 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.
 
 #ifndef NET_COOKIES_PARSED_COOKIE_H_
 #define NET_COOKIES_PARSED_COOKIE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 class NET_EXPORT ParsedCookie {
  public:
   typedef std::pair<std::string, std::string> TokenValuePair;
   typedef std::vector<TokenValuePair> PairList;
 
   // The maximum length of a cookie string we will try to parse
   static const size_t kMaxCookieSize = 4096;
   // The maximum number of Token/Value pairs.  Shouldn't have more than 8.
   static const int kMaxPairs = 16;
 
   // Construct from a cookie string like "BLAH=1; path=/; domain=.google.com"
-  ParsedCookie(const std::string& cookie_line);
+  explicit ParsedCookie(const std::string& cookie_line);
   ~ParsedCookie();
 
   // You should not call any other methods except for SetName/SetValue on the
   // class if !IsValid.
   bool IsValid() const;
 
   const std::string& Name() const { return pairs_[0].first; }
   const std::string& Token() const { return Name(); }
   const std::string& Value() const { return pairs_[0].second; }
 
@@ skipping 106 matching lines @@
   size_t maxage_index_;
   size_t secure_index_;
   size_t httponly_index_;
 
   DISALLOW_COPY_AND_ASSIGN(ParsedCookie);
 };
 
 }  // namespace net
 
 #endif  // NET_COOKIES_COOKIE_MONSTER_H_