Should not gather statistics for a system profile.

chrome/browser/profiles/profile_manager.cc

Index: chrome/browser/profiles/profile_manager.cc
diff --git a/chrome/browser/profiles/profile_manager.cc b/chrome/browser/profiles/profile_manager.cc
index ab192042a61a91916d88f323d8ecfcc69f7a4338..800010b79252d961655dccbf41b14038c5cc50f4 100644
--- a/chrome/browser/profiles/profile_manager.cc
+++ b/chrome/browser/profiles/profile_manager.cc
@@ -1670,7 +1670,7 @@ void ProfileManager::BrowserListObserver::OnBrowserRemoved(
     // Gather statistics and store into ProfileInfoCache. For incognito profile
     // we gather the statistics of its parent profile instead, because a window
     // of the parent profile was open.
-    if (!profile->IsSystemProfile()) {
+    if (!profile->IsSystemProfile() && !original_profile->IsSystemProfile()) {
       ProfileStatisticsFactory::GetForProfile(original_profile)->
           GatherStatistics(profiles::ProfileStatisticsCallback());
     }