Enable clang style plugin in webrtc/modules/desktop_capture

webrtc/modules/desktop_capture/desktop_and_cursor_composer.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 42 matching lines @@
 }
 
 // DesktopFrame wrapper that draws mouse on a frame and restores original
 // content before releasing the underlying frame.
 class DesktopFrameWithCursor : public DesktopFrame {
  public:
   // Takes ownership of |frame|.
   DesktopFrameWithCursor(std::unique_ptr<DesktopFrame> frame,
                          const MouseCursor& cursor,
                          const DesktopVector& position);
-  virtual ~DesktopFrameWithCursor();
+  ~DesktopFrameWithCursor() override;
 
  private:
   std::unique_ptr<DesktopFrame> original_frame_;
 
   DesktopVector restore_position_;
   std::unique_ptr<DesktopFrame> restore_frame_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(DesktopFrameWithCursor);
 };
 
@@ skipping 97 matching lines @@
 }
 
 void DesktopAndCursorComposer::OnMouseCursorPosition(
     MouseCursorMonitor::CursorState state,
     const DesktopVector& position) {
   cursor_state_ = state;
   cursor_position_ = position;
 }
 
 }  // namespace webrtc