Componentize //chrome/browser/prefs/tracked.

components/prefs_tracker/tracked_preference_helper.cc

Index: components/prefs_tracker/tracked_preference_helper.cc
diff --git a/chrome/browser/prefs/tracked/tracked_preference_helper.cc b/components/prefs_tracker/tracked_preference_helper.cc
similarity index 92%
rename from chrome/browser/prefs/tracked/tracked_preference_helper.cc
rename to components/prefs_tracker/tracked_preference_helper.cc
index b3b528e56063e67d8614d26605903263afc3d842..e7b61df1f2f4787a6c2eaa92b7f187ebe7e98763 100644
--- a/chrome/browser/prefs/tracked/tracked_preference_helper.cc
+++ b/components/prefs_tracker/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/prefs_tracker/tracked_preference_helper.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
@@ -107,12 +107,9 @@ void TrackedPreferenceHelper::ReportSplitPreferenceChangedCount(
   // The histogram below is an expansion of the UMA_HISTOGRAM_COUNTS_100 macro
   // adapted to allow for a dynamically suffixed histogram name.
   // Note: The factory creates and owns the histogram.
-  base::HistogramBase* histogram =
-      base::LinearHistogram::FactoryGet(

[gab, 2015/07/23 21:41:16]

This was easier to read IMO and is how it's written pretty much everywhere I've
seen it in the codebase.

[Jitu( very slow this week), 2015/07/24 09:09:23]

Done.

As i used git format cl command this piece is automatically changed.

-          "Settings.TrackedSplitPreferenceChanged." + pref_path_,
-          1,
-          100,  // Allow counts up to 100.
-          101,
-          base::HistogramBase::kUmaTargetedHistogramFlag);
+  base::HistogramBase* histogram = base::LinearHistogram::FactoryGet(
+      "Settings.TrackedSplitPreferenceChanged." + pref_path_, 1,
+      100,  // Allow counts up to 100.
+      101, base::HistogramBase::kUmaTargetedHistogramFlag);
   histogram->Add(count);
 }