Cleanup: Remove unneeded scoped_ptr.h includes from ppapi, printing, remoting, and sync.

remoting/protocol/authentication_method.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.
 
 // AuthenticationMethod represents an authentication algorithm and its
 // configuration. It knows how to parse and format authentication
 // method names.
 // Currently the following methods are supported:
 //   v1_token - deprecated V1 authentication mechanism,
 //   spake2_plain - SPAKE2 without hashing applied to the password.
 //   spake2_hmac - SPAKE2 with HMAC hashing of the password.
 
 #ifndef REMOTING_PROTOCOL_AUTHENTICATION_METHOD_H_
 #define REMOTING_PROTOCOL_AUTHENTICATION_METHOD_H_
 
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
-
 namespace remoting {
 namespace protocol {
 
 class Authenticator;
 
 class AuthenticationMethod {
  public:
   enum HashFunction {
     NONE,
     HMAC_SHA256,
@@ skipping 26 matching lines @@
 
   // Comparison operators so that std::find() can be used with
   // collections of this class.
   bool operator ==(const AuthenticationMethod& other) const;
   bool operator !=(const AuthenticationMethod& other) const {
     return !(*this == other);
   }
 
  private:
   AuthenticationMethod();
-  AuthenticationMethod(HashFunction hash_function);
+  explicit AuthenticationMethod(HashFunction hash_function);
 
   bool invalid_;
   HashFunction hash_function_;
 };
 
 // SharedSecretHash stores hash of a host secret paired with the type
 // of the hashing function.
 struct SharedSecretHash {
   AuthenticationMethod::HashFunction hash_function;
   std::string value;
 
   // Parse string representation of a shared secret hash. The |as_string|
   // must be in form "<hash_function>:<hash_value_base64>".
   bool Parse(const std::string& as_string);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_AUTHENTICATION_METHOD_H_