Rename sequence_number to timestamp.

remoting/host/chromoting_messages.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_CHROMOTING_MESSAGES_H_
 #define REMOTING_HOST_CHROMOTING_MESSAGES_H_
 
 #include "ipc/ipc_platform_file.h"
 #include "net/base/ip_endpoint.h"
 #include "remoting/host/chromoting_param_traits.h"
@@ skipping 142 matching lines @@
 
   // Captured region.
   IPC_STRUCT_MEMBER(std::vector<webrtc::DesktopRect>, dirty_region)
 
   // Dimensions of the buffer in pixels.
   IPC_STRUCT_MEMBER(webrtc::DesktopSize, dimensions)
 
   // Time spent in capture. Unit is in milliseconds.
   IPC_STRUCT_MEMBER(int64, capture_time_ms)
 
-  // Sequence number supplied by client for performance tracking.
-  IPC_STRUCT_MEMBER(int64, client_sequence_number)
+  // Latest event timestamp supplied by the client for performance tracking.
+  IPC_STRUCT_MEMBER(int64, latest_event_timestamp)
 
   // DPI for this frame.
   IPC_STRUCT_MEMBER(webrtc::DesktopVector, dpi)
 IPC_STRUCT_END()
 
 // Notifies the network process that a shared buffer has been created.
 IPC_MESSAGE_CONTROL1(ChromotingDesktopNetworkMsg_CaptureCompleted,
                      SerializedDesktopFrame /* frame */ )
 
 // Carries a cursor share update from the desktop session agent to the client.
@@ skipping 41 matching lines @@
                      std::string /* serialized_event */ )
 
 // Carries a mouse event from the client to the desktop session agent.
 // |serialized_event| is a serialized protocol::MouseEvent.
 IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_InjectMouseEvent,
                      std::string /* serialized_event */ )
 
 // Changes the screen resolution in the desktop session.
 IPC_MESSAGE_CONTROL1(ChromotingNetworkDesktopMsg_SetScreenResolution,
                      remoting::ScreenResolution /* resolution */)