[Android] Add timeout to unmap reply handling.

tools/android/forwarder2/command.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 TOOLS_ANDROID_FORWARDER2_COMMAND_H_
 #define TOOLS_ANDROID_FORWARDER2_COMMAND_H_
 
 
 namespace forwarder2 {
 
@@ skipping 18 matching lines @@
   UNLISTEN_ERROR,
   UNLISTEN_SUCCESS,
 };
 
 }  // namespace command
 
 bool ReadCommand(Socket* socket,
                  int* port_out,
                  command::Type* command_type_out);
 
+bool ReadCommandWithTimeout(Socket* socket,
+                            int* port_out,
+                            command::Type* command_type_out,
+                            int timeout_secs);
+
 // Helper function to read the command from the |socket| and return true if the
 // |command| is equal to the given command parameter.
 bool ReceivedCommand(command::Type command, Socket* socket);
 
+bool ReceivedCommandWithTimeout(command::Type command,
+                                Socket* socket,
+                                int timeout_secs);
+
 bool SendCommand(command::Type command, int port, Socket* socket);
 
 }  // namespace forwarder
 
 #endif  // TOOLS_ANDROID_FORWARDER2_COMMAND_H_