Componentize //chrome/browser/prefs/tracked.

components/user_prefs/tracked/tracked_preference_helper.cc

Index: components/user_prefs/tracked/tracked_preference_helper.cc
diff --git a/chrome/browser/prefs/tracked/tracked_preference_helper.cc b/components/user_prefs/tracked/tracked_preference_helper.cc
similarity index 96%
rename from chrome/browser/prefs/tracked/tracked_preference_helper.cc
rename to components/user_prefs/tracked/tracked_preference_helper.cc
index b3b528e56063e67d8614d26605903263afc3d842..6de0ce174df52c5d6223aee13396ed4756d92e36 100644
--- a/chrome/browser/prefs/tracked/tracked_preference_helper.cc
+++ b/components/user_prefs/tracked/tracked_preference_helper.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/prefs/tracked/tracked_preference_helper.h"
+#include "components/user_prefs/tracked/tracked_preference_helper.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ -112,7 +112,6 @@ void TrackedPreferenceHelper::ReportSplitPreferenceChangedCount(
           "Settings.TrackedSplitPreferenceChanged." + pref_path_,
           1,
           100,  // Allow counts up to 100.
-          101,
-          base::HistogramBase::kUmaTargetedHistogramFlag);

[gab, 2015/07/29 18:12:14]

As mentioned before, please keep this on its own line as everywhere in the
codebase.

[Jitu( very slow this week), 2015/07/30 08:06:13]

Done.

+          101, base::HistogramBase::kUmaTargetedHistogramFlag);
   histogram->Add(count);
 }