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

remoting/host/capturer_mac.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_MAC_H_
 #define REMOTING_HOST_CAPTURER_MAC_H_
 
 #include "remoting/host/capturer.h"
 #include <ApplicationServices/ApplicationServices.h>
 #include <OpenGL/OpenGL.h>
 #include "base/scoped_ptr.h"
 
 namespace remoting {
 
 // A class to perform capturing for mac.
 class CapturerMac : public Capturer {
  public:
   CapturerMac();
   virtual ~CapturerMac();
 
-  virtual void CaptureRects(const RectVector& rects,
-                            CaptureCompletedCallback* callback);
-
   virtual void ScreenConfigurationChanged();
 
  private:
+  virtual void CalculateInvalidRects();
+  virtual void CaptureRects(const InvalidRects& rects,
+                            CaptureCompletedCallback* callback);
+
   void ScreenRefresh(CGRectCount count, const CGRect *rect_array);
   void ScreenUpdateMove(CGScreenUpdateMoveDelta delta,
                                 size_t count,
                                 const CGRect *rect_array);
   static void ScreenRefreshCallback(CGRectCount count,
                                     const CGRect *rect_array,
                                     void *user_parameter);
   static void ScreenUpdateMoveCallback(CGScreenUpdateMoveDelta delta,
                                        size_t count,
                                        const CGRect *rect_array,
                                        void *user_parameter);
   static void DisplaysReconfiguredCallback(CGDirectDisplayID display,
                                            CGDisplayChangeSummaryFlags flags,
                                            void *user_parameter);
 
   void ReleaseBuffers();
   CGLContextObj cgl_context_;
   scoped_array<uint8> buffers_[kNumBuffers];
   DISALLOW_COPY_AND_ASSIGN(CapturerMac);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CAPTURER_MAC_H_