Move decoder into separate thread, clean up API layering, and redo update protocl

remoting/base/encoder_zlib.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_BASE_ENCODER_ZLIB_H_
 #define REMOTING_BASE_ENCODER_ZLIB_H_
 
 #include "remoting/base/encoder.h"
 
 #include "gfx/rect.h"
@@ skipping 13 matching lines @@
 
   virtual void Encode(scoped_refptr<CaptureData> capture_data,
                       bool key_frame,
                       DataAvailableCallback* data_available_callback);
 
  private:
   // Encode a single dirty rect using compressor.
   void EncodeRect(CompressorZlib* compressor, const gfx::Rect& rect,
                   size_t rect_index);
 
-  // Create a new ChromotingHostMessage with the right flag and attributes.
-  // The message can be used immediately for output of encoding.
-  ChromotingHostMessage* PrepareMessage(const gfx::Rect* rect);
+  // Marks a packets as the first in a series of rectangle updates.
+  void PrepareUpdateStart(const gfx::Rect& rect,
+                          RectangleUpdatePacket* update);
+
+  // Retrieves a pointer to the output buffer in |update| used for storing the
+  // encoded rectangle data.  Will resize the buffer to |size|.
+  uint8* GetOutputBuffer(RectangleUpdatePacket* update, size_t size);
 
   // Submit |message| to |callback_|.
   void SubmitMessage(ChromotingHostMessage* message, size_t rect_index);
 
   scoped_refptr<CaptureData> capture_data_;
   scoped_ptr<DataAvailableCallback> callback_;
   //size_t current_rect_;
   int packet_size_;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_ENCODER_ZLIB_H_