Moving preference API into api/preferences

chrome/browser/extensions/api/preference/preference_helpers.cc

Index: chrome/browser/extensions/api/preference/preference_helpers.cc
diff --git a/chrome/browser/extensions/extension_preference_helpers.cc b/chrome/browser/extensions/api/preference/preference_helpers.cc
similarity index 96%
rename from chrome/browser/extensions/extension_preference_helpers.cc
rename to chrome/browser/extensions/api/preference/preference_helpers.cc
index 5e5040f7ca18e716f6dd30d9261387361c791790..e95236f57b5c18e3e34f6cc9ce1c9be4c38b9c30 100644
--- a/chrome/browser/extensions/extension_preference_helpers.cc
+++ b/chrome/browser/extensions/api/preference/preference_helpers.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/extensions/extension_preference_helpers.h"
+#include "chrome/browser/extensions/api/preference/preference_helpers.h"
 
 #include "base/json/json_writer.h"
 #include "base/values.h"
@@ -12,6 +12,9 @@
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 
+namespace extensions {
+namespace preference_helpers {
+
 namespace {
 
 const char kIncognitoPersistent[] = "incognito_persistent";
@@ -28,8 +31,6 @@ const char kControlledByThisExtension[] = "controlled_by_this_extension";
 
 }  // namespace
 
-namespace extension_preference_helpers {
-
 bool StringToScope(const std::string& s,
                    extensions::ExtensionPrefsScope* scope) {
   if (s == kRegular)
@@ -132,4 +133,5 @@ void DispatchEventToExtensions(
   }
 }
 
-}  // namespace extension_preference_helpers
+}  // namespace preference_helpers
+}  // namespace extensions