Sanitize PrefStore interface.

chrome/browser/metrics/metrics_service_uitest.cc

Index: chrome/browser/metrics/metrics_service_uitest.cc
diff --git a/chrome/browser/metrics/metrics_service_uitest.cc b/chrome/browser/metrics/metrics_service_uitest.cc
index 93889c586788bab047d156a8a927038b0f91d783..4d67c135e36ebf65c99ffc6e743b851168d0a727 100644
--- a/chrome/browser/metrics/metrics_service_uitest.cc
+++ b/chrome/browser/metrics/metrics_service_uitest.cc
@@ -13,14 +13,15 @@
 #include "base/platform_thread.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/prefs/pref_service_mock_builder.h"
 #include "chrome/browser/prefs/pref_value_store.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/json_pref_store.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
-#include "chrome/test/automation/tab_proxy.h"
 #include "chrome/test/automation/browser_proxy.h"
+#include "chrome/test/automation/tab_proxy.h"
 #include "chrome/test/ui/ui_test.h"
 #include "net/base/net_util.h"
 
@@ -51,10 +52,8 @@ class MetricsServiceTest : public UITest {
   // that was saved by the app as it closed.  The caller takes ownership of the
   // returned PrefService object.
   PrefService* GetLocalState() {
-    FilePath local_state_path = user_data_dir()
-        .Append(chrome::kLocalStateFilename);
-
-    return PrefService::CreateUserPrefService(local_state_path);
+    FilePath path = user_data_dir().Append(chrome::kLocalStateFilename);
+    return PrefServiceMockBuilder().WithUserFilePrefs(path).Create();
   }
 };