remoting: Cleanup class/struct fwd declarations

remoting/host/desktop_capturer_proxy.h

 // Copyright 2015 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_HOST_DESKTOP_CAPTURER_PROXY_H_
 #define REMOTING_HOST_DESKTOP_CAPTURER_PROXY_H_
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace webrtc {
 class DesktopCaptureOptions;
 }  // namespace webrtc
 
 namespace remoting {
 
-namespace protocol {
-class CursorShapeInfo;
-}  // namespace protocol
-
 // DesktopCapturerProxy is responsible for calling webrtc::DesktopCapturer on
 // the capturer thread and then returning results to the caller's thread.
 // GetSourceList() and SelectSource() functions are not implemented by this
 // class, they always return false.
 class DesktopCapturerProxy : public webrtc::DesktopCapturer {
  public:
   explicit DesktopCapturerProxy(
       scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner);
   ~DesktopCapturerProxy() override;
 
@@ skipping 24 matching lines @@
   webrtc::DesktopCapturer::Callback* callback_;
 
   base::WeakPtrFactory<DesktopCapturerProxy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopCapturerProxy);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DESKTOP_CAPTURER_PROXY_H_