huddly-updater: rename LoggingSettings.log_file

It will be renamed to log_file_path.

BUG=chromium:1094927
TEST=cros_run_unit_tests --board=fizz --packages huddly-updater

Change-Id: I5631436e643825d33a730c63f6702ff735f4dba0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/huddly-updater/+/2409474
Commit-Queue: Qijiang Fan <fqj@google.com>
Tested-by: Grace Cham <hscham@chromium.org>
Reviewed-by: Qijiang Fan <fqj@google.com>
Reviewed-by: Joe Tessler <jrt@chromium.org>
diff --git a/src/huddly_go/main.cc b/src/huddly_go/main.cc
index 2689c04..8ac9907 100644
--- a/src/huddly_go/main.cc
+++ b/src/huddly_go/main.cc
@@ -79,7 +79,11 @@
     // A particular log file is specified.
     logging::LoggingSettings logging_settings;
     logging_settings.logging_dest = logging::LOG_TO_FILE;
+#if BASE_VER < 780000
     logging_settings.log_file = cmd_flags.log_to.c_str();
+#else
+    logging_settings.log_file_path = cmd_flags.log_to.c_str();
+#endif
     logging_settings.lock_log = logging::DONT_LOCK_LOG_FILE;
     logging::InitLogging(logging_settings);
   }
diff --git a/src/huddly_hpk/main.cc b/src/huddly_hpk/main.cc
index 6e1f732..a34f9d0 100644
--- a/src/huddly_hpk/main.cc
+++ b/src/huddly_hpk/main.cc
@@ -41,7 +41,11 @@
     // A particular log file is specified.
     logging::LoggingSettings logging_settings;
     logging_settings.logging_dest = logging::LOG_TO_FILE;
+#if BASE_VER < 780000
     logging_settings.log_file = FLAGS_log_to.c_str();
+#else
+    logging_settings.log_file_path = FLAGS_log_to.c_str();
+#endif
     logging_settings.lock_log = logging::DONT_LOCK_LOG_FILE;
     logging::InitLogging(logging_settings);
   }