Make "Ignoring DBusStatistics::AddStat" a DVLOG instead of DLOG(WARNING)

dbus/dbus_statistics.cc

Index: dbus/dbus_statistics.cc
diff --git a/dbus/dbus_statistics.cc b/dbus/dbus_statistics.cc
index eeb2f0ace0f2964e0075e172172b0819f6c144b2..3a615e58bc42bce28d7e042cd4feaf232c02994f 100644
--- a/dbus/dbus_statistics.cc
+++ b/dbus/dbus_statistics.cc
@@ -84,8 +84,8 @@ class DBusStatistics {
                const std::string& method,
                StatType type) {
     if (base::PlatformThread::CurrentId() != origin_thread_id_) {
-      DLOG(WARNING) << "Ignoring DBusStatistics::AddStat call from thread: "
-                    << base::PlatformThread::CurrentId();
+      DVLOG(1) << "Ignoring DBusStatistics::AddStat call from thread: "
+               << base::PlatformThread::CurrentId();
       return;
     }
     Stat* stat = GetStat(service, interface, method, true);