remoting/host: Fix cpplint warning of header guards.

remoting/host/capturer.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_HOST_CAPTURER_H_
 #define REMOTING_HOST_CAPTURER_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "media/base/video_frame.h"
@@ skipping 41 matching lines @@
 class Capturer {
  public:
   // CaptureCompletedCallback is called when the capturer has completed.
   typedef base::Callback<void(scoped_refptr<CaptureData>)>
       CaptureCompletedCallback;
 
   // CursorShapeChangedCallback is called when the cursor shape has changed.
   typedef base::Callback<void(scoped_ptr<protocol::CursorShapeInfo>)>
       CursorShapeChangedCallback;
 
-  virtual ~Capturer() {};
+  virtual ~Capturer() {}
 
   // Create platform-specific capturer.
   static Capturer* Create();
 
 #if defined(OS_LINUX)
   // Set whether the Capturer should try to use X DAMAGE support if it is
   // available.  This needs to be called before the Capturer is created.
   // This is used by the Virtual Me2Me host, since the XDamage extension is
   // known to work reliably in this case.
 
@@ skipping 43 matching lines @@
   virtual void CaptureInvalidRegion(
       const CaptureCompletedCallback& callback) = 0;
 
   // Get the size of the most recently captured screen.
   virtual const SkISize& size_most_recent() const = 0;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CAPTURER_H_