Initial pass at integrating Differ into the chromoting host code....

remoting/host/capturer_linux.h

 // Copyright (c) 2010 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_LINUX_H_
 #define REMOTING_HOST_CAPTURER_LINUX_H_
 
 #include "remoting/host/capturer.h"
 
 namespace remoting {
 
 // A class to perform capturing for Linux.
 class CapturerLinux : public Capturer {
  public:
   CapturerLinux();
   virtual ~CapturerLinux();
 
-  virtual void CaptureRects(const RectVector& rects,
-                            CaptureCompletedCallback* callback);
-
   virtual void ScreenConfigurationChanged();
 
  private:
+  virtual void CalculateInvalidRects();
+  virtual void CaptureRects(const InvalidRects& rects,
+                            CaptureCompletedCallback* callback);
 
   DISALLOW_COPY_AND_ASSIGN(CapturerLinux);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CAPTURER_LINUX_H_