Add basic perf tests for chromoting protocol.

remoting/host/video_scheduler.h

 // Copyright (c) 2012 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_VIDEO_SCHEDULER_H_
 #define REMOTING_HOST_VIDEO_SCHEDULER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 58 matching lines @@
 //
 // VideoScheduler would ideally schedule captures so as to saturate the slowest
 // of the capture, encode and network processes.  However, it also needs to
 // rate-limit captures to avoid overloading the host system, either by consuming
 // too much CPU, or hogging the host's graphics subsystem.
 
 class VideoScheduler : public base::RefCountedThreadSafe<VideoScheduler>,
                        public webrtc::DesktopCapturer::Callback,
                        public webrtc::ScreenCapturer::MouseShapeObserver {
  public:
+  // Enables timestamps for generated frames. Used for testing.
+  static void EnableTimestampsForTests();
+
   // Creates a VideoScheduler running capture, encode and network tasks on the
   // supplied TaskRunners.  Video and cursor shape updates will be pumped to
   // |video_stub| and |client_stub|, which must remain valid until Stop() is
   // called. |capturer| is used to capture frames.
   VideoScheduler(
       scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> network_task_runner,
       scoped_ptr<webrtc::ScreenCapturer> capturer,
       scoped_ptr<VideoEncoder> encoder,
@@ skipping 64 matching lines @@
   // Callback for |video_stub_| called after a keep-alive packet is sent.
   void OnKeepAlivePacketSent();
 
   // Send updated cursor shape to client.
   void SendCursorShape(scoped_ptr<protocol::CursorShapeInfo> cursor_shape);
 
   // Encoder thread -----------------------------------------------------------
 
   // Encode a frame, passing generated VideoPackets to SendVideoPacket().
   void EncodeFrame(scoped_ptr<webrtc::DesktopFrame> frame,
-                   int64 sequence_number);
+                   int64 sequence_number,
+                   base::TimeTicks timestamp);
 
   void EncodedDataAvailableCallback(int64 sequence_number,
                                     scoped_ptr<VideoPacket> packet);
 
   // Task runners used by this class.
   scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
 
   // Used to capture frames. Always accessed on the capture thread.
@@ skipping 33 matching lines @@
 
   // An object to schedule capturing.
   CaptureScheduler scheduler_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoScheduler);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_VIDEO_SCHEDULER_H_