net: Cleanup class/struct forward declarations

net/android/dummy_spnego_authenticator.h

 // Copyright (c) 2014 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_ANDROID_DUMMY_SPNEGO_AUTHENTICATOR_H_
 #define NET_ANDROID_DUMMY_SPNEGO_AUTHENTICATOR_H_
 
 #include <jni.h>
 #include <stdint.h>
 
 #include <cstdint>
 #include <list>
 #include <string>
 
 #include "base/android/scoped_java_ref.h"
 
 // Provides an interface for controlling the DummySpnegoAuthenticator service.
 // This includes a basic stub of the Mock GSSAPI library, so that OS independent
 // Negotiate authentication tests can be run on Android.
 namespace net {
 
 // These constant values are arbitrary, and different from the real GSSAPI
 // values, but must match those used in DummySpnegoAuthenticator.java
 #define GSS_S_COMPLETE 0
 #define GSS_S_CONTINUE_NEEDED 1
 #define GSS_S_FAILURE 2
 
-class gss_buffer_desc;
-
 typedef struct gss_OID_desc_struct {
   uint32_t length;
   void* elements;
 } gss_OID_desc, *gss_OID;
 
 extern gss_OID CHROME_GSS_SPNEGO_MECH_OID_DESC;
 
 namespace test {
 
 // Copy of class in Mock GSSAPI library.
@@ skipping 97 matching lines @@
   std::list<SecurityContextQuery> expected_security_queries_;
   // Needed to keep the current query alive once it has been pulled from the
   // queue. This is simpler than transferring its ownership to Java.
   SecurityContextQuery current_query_;
 };
 
 }  // namespace android
 }  // namespace net
 
 #endif  // NET_ANDROID_DUMMY_SPNEGO_AUTHENTICATOR_DRIVER_H