remoting: Cleanup class/struct fwd declarations

remoting/protocol/protocol_mock_objects.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 REMOTING_PROTOCOL_PROTOCOL_MOCK_OBJECTS_H_
 #define REMOTING_PROTOCOL_PROTOCOL_MOCK_OBJECTS_H_
 
 #include <cstdint>
 #include <map>
 #include <memory>
@@ skipping 16 matching lines @@
 #include "remoting/protocol/input_stub.h"
 #include "remoting/protocol/pairing_registry.h"
 #include "remoting/protocol/session.h"
 #include "remoting/protocol/session_manager.h"
 #include "remoting/protocol/transport.h"
 #include "remoting/protocol/video_stub.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
 
 namespace remoting {
+
+class VideoEncoder;
+
 namespace protocol {
 
 class MockAuthenticator : public Authenticator {
  public:
   MockAuthenticator();
   ~MockAuthenticator() override;
 
   MOCK_CONST_METHOD0(state, Authenticator::State());
   MOCK_CONST_METHOD0(started, bool());
   MOCK_CONST_METHOD0(rejection_reason, Authenticator::RejectionReason());
@@ skipping 215 matching lines @@
   // Runs tasks synchronously instead of posting them to |task_runner|.
   void PostTask(const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
                 const tracked_objects::Location& from_here,
                 const base::Closure& task) override;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_PROTOCOL_MOCK_OBJECTS_H_