Define a LoggingSettings struct to use for InitLogging()

content/common/gpu/media/video_decode_accelerator_unittest.cc

Index: content/common/gpu/media/video_decode_accelerator_unittest.cc
diff --git a/content/common/gpu/media/video_decode_accelerator_unittest.cc b/content/common/gpu/media/video_decode_accelerator_unittest.cc
index 43227d634b3bbabc0b409559dba562e25f8211cd..b4ce48496b21adfd3a2ace7ca72bdbf7c1263425 100644
--- a/content/common/gpu/media/video_decode_accelerator_unittest.cc
+++ b/content/common/gpu/media/video_decode_accelerator_unittest.cc
@@ -944,12 +944,11 @@ int main(int argc, char **argv) {
   CommandLine::Init(argc, argv);
 
   // Needed to enable DVLOG through --vmodule.
-  CHECK(logging::InitLogging(
-      NULL,
-      logging::LOG_ONLY_TO_SYSTEM_DEBUG_LOG,
-      logging::DONT_LOCK_LOG_FILE,
-      logging::APPEND_TO_OLD_LOG_FILE,
-      logging::ENABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS));
+  logging::LoggingSettings settings;
+  settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
+  settings.dcheck_state =
+      logging::ENABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS;
+  CHECK(logging::InitLogging(settings));
 
   CommandLine* cmd_line = CommandLine::ForCurrentProcess();
   DCHECK(cmd_line);