Removed useless VLOG() messages about unknown network.

chrome/browser/chromeos/net/network_portal_detector_impl.cc

Index: chrome/browser/chromeos/net/network_portal_detector_impl.cc
diff --git a/chrome/browser/chromeos/net/network_portal_detector_impl.cc b/chrome/browser/chromeos/net/network_portal_detector_impl.cc
index c2629417672556c365cf2633b2a8bcb72a69445c..8bf0d9acd2d5cceb7fea87c923ac9eb40d1f48d2 100644
--- a/chrome/browser/chromeos/net/network_portal_detector_impl.cc
+++ b/chrome/browser/chromeos/net/network_portal_detector_impl.cc
@@ -291,10 +291,8 @@ NetworkPortalDetectorImpl::CaptivePortalState
 NetworkPortalDetectorImpl::GetCaptivePortalState(const std::string& guid) {
   DCHECK(CalledOnValidThread());
   CaptivePortalStateMap::const_iterator it = portal_state_map_.find(guid);
-  if (it == portal_state_map_.end()) {
-    VLOG(1) << "CaptivePortalState not found for: " << guid;
+  if (it == portal_state_map_.end())
     return CaptivePortalState();
-  }
   return it->second;
 }