When passing a user gesture along with a message, include the timestamp of the user gesture to prev…

extensions/common/api/messaging/message.h

 // Copyright 2014 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 EXTENSIONS_COMMON_API_MESSAGING_MESSAGE_H_
 #define EXTENSIONS_COMMON_API_MESSAGING_MESSAGE_H_
 
 namespace extensions {
 
 // A message consists of both the data itself as well as a user gesture state.
 struct Message {
   std::string data;
   bool user_gesture;
+  double user_gesture_timestamp;
 
-  Message() : data(), user_gesture(false) {}
-  Message(const std::string& data, bool user_gesture)
-      : data(data), user_gesture(user_gesture) {}
+  Message() : data() {}
+  Message(const std::string& data,
+          bool user_gesture,
+          double user_gesture_timestamp)
+      : data(data),
+        user_gesture(user_gesture),
+        user_gesture_timestamp(user_gesture_timestamp) {}
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_API_MESSAGING_MESSAGE_H_