HttpAuthentication: Add explicit copy & assignment constructors.

So that we don't copy the BLocker. Fixes part of the build.

headers/os/net/HttpAuthentication.h

@@ -42,29 +42,33 @@ public:
 								BHttpAuthentication();
 								BHttpAuthentication(const BString& username,
 									const BString& password);
-									
+								BHttpAuthentication(
+									const BHttpAuthentication& other);
+								BHttpAuthentication& operator=(
+									const BHttpAuthentication& other);
+
 	// Field modification
 			void				SetUserName(const BString& username);
 			void				SetPassword(const BString& password);
 			void				SetMethod(
 									BHttpAuthenticationMethod type);
 			status_t			Initialize(const BString& wwwAuthenticate);
-			
+
 	// Field access
 			const BString&		UserName() const;
 			const BString&		Password() const;
 			BHttpAuthenticationMethod Method() const;
-			
-			BString				Authorization(const BUrl& url, 
+
+			BString				Authorization(const BUrl& url,
 									const BString& method) const;
-			
+
 	// Base64 encoding
 	// TODO: Move to a common place. We may have multiple implementations
 	// in the Haiku tree...
 	static	BString				Base64Encode(const BString& string);
 	static	BString				Base64Decode(const BString& string);
-	
-	
+
+
 private:
 			BString				_DigestResponse(const BString& uri,
 									const BString& method) const;
@@ -72,14 +76,14 @@ private:
 			// _KD returns a hash value of the "data" prepended by
 			// the "secret" string...
 			BString				_H(const BString& value) const;
-			BString				_KD(const BString& secret, 
+			BString				_KD(const BString& secret,
 									const BString& data) const;
-			
+
 private:
 			BHttpAuthenticationMethod fAuthenticationMethod;
 			BString				fUserName;
 			BString				fPassword;
-			
+
 			BString				fRealm;
 			BString				fDigestNonce;
 	mutable	BString				fDigestCnonce;
@@ -88,7 +92,7 @@ private:
 			bool				fDigestStale;
 			BHttpAuthenticationAlgorithm fDigestAlgorithm;
 			BHttpAuthenticationQop fDigestQop;
-			
+
 			BString				fAuthorizationString;
 
 	mutable	BLocker				fLock;