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

remoting/host/capturer.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/host/capturer.h"
 
 #include <algorithm>
 
+#include "remoting/base/tracer.h"
+
 namespace remoting {
 
 Capturer::Capturer()
     : width_(0),
       height_(0),
       pixel_format_(PixelFormatInvalid),
       bytes_per_row_(0),
       current_buffer_(0) {
 }
 
@@ skipping 17 matching lines @@
 }
 
 void Capturer::InvalidateFullScreen() {
   AutoLock auto_inval_rects_lock(inval_rects_lock_);
   inval_rects_.clear();
   inval_rects_.insert(gfx::Rect(0, 0, width_, height_));
 }
 
 void Capturer::CaptureInvalidRects(CaptureCompletedCallback* callback) {
   // Calculate which rects need to be captured.
+  TraceContext::tracer()->PrintString("Started CalculateInvalidRects");
   CalculateInvalidRects();
+  TraceContext::tracer()->PrintString("Done CalculateInvalidRects");
 
   // Braced to scope the lock.
   InvalidRects local_rects;
   {
     AutoLock auto_inval_rects_lock(inval_rects_lock_);
-    local_rects = inval_rects_;
-    inval_rects_.clear();
+    local_rects.swap(inval_rects_);
   }
 
+  TraceContext::tracer()->PrintString("Start CaptureRects");
   CaptureRects(local_rects, callback);
 }
 
 void Capturer::FinishCapture(scoped_refptr<CaptureData> data,
                              CaptureCompletedCallback* callback) {
   // Select the next buffer to be the current buffer.
   current_buffer_ = (current_buffer_ + 1) % kNumBuffers;
 
   callback->Run(data);
   delete callback;
 }
 
 }  // namespace remoting