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

remoting/base/encoder_verbatim.cc

 // 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.
 
 #include "remoting/base/encoder_verbatim.h"
 
 #include "gfx/rect.h"
 #include "media/base/data_buffer.h"
 #include "remoting/base/capture_data.h"
 #include "remoting/base/protocol_util.h"
 #include "remoting/base/protocol/chromotocol.pb.h"
 
 namespace remoting {
 
 using media::DataBuffer;
 
 void EncoderVerbatim::Encode(scoped_refptr<CaptureData> capture_data,
                              bool key_frame,
                              DataAvailableCallback* data_available_callback) {
-  int num_rects = capture_data->dirty_rects().size();
-  for (int i = 0; i < num_rects; i++) {
-    const gfx::Rect& dirty_rect = capture_data->dirty_rects()[i];
+  const InvalidRects& rects = capture_data->dirty_rects();
+  int num_rects = rects.size();
+  int index = 0;
+  for (InvalidRects::const_iterator r = rects.begin();
+      r != rects.end(); ++r, ++index) {
+    const gfx::Rect& dirty_rect = *r;
     HostMessage* msg = new HostMessage();
     UpdateStreamPacketMessage* packet = msg->mutable_update_stream_packet();
 
     if (EncodeRect(dirty_rect.x(), dirty_rect.y(), dirty_rect.width(),
                    dirty_rect.height(), capture_data, packet)) {
       // Prepare the end rect content.
       packet->mutable_end_rect();
 
       EncodingState state = EncodingInProgress;
-      if (i == 0) {
+      if (index == 0) {
         state |= EncodingStarting;
       }
-      if (i == num_rects - 1) {
+      if (index == num_rects - 1) {
         state |= EncodingEnded;
       }
       data_available_callback->Run(msg, state);
     }
   }
 
   delete data_available_callback;
 }
 
 bool EncoderVerbatim::EncodeRect(
@@ skipping 37 matching lines @@
       DCHECK_LE(row_size, capture_data->data_planes().strides[i]);
       memcpy(out, in, width * bytes_per_pixel);
       in += capture_data->data_planes().strides[i];
       out += row_size;
     }
   }
   return true;
 }
 
 }  // namespace remoting