Move the bits of Prefs where production code has only trivially easy

chrome/common/pref_store.cc

Index: chrome/common/pref_store.cc
diff --git a/chrome/common/pref_store.cc b/chrome/common/pref_store.cc
deleted file mode 100644
index 7556f0f5d243af3fad551ab4ada91d84d2afc5e5..0000000000000000000000000000000000000000
--- a/chrome/common/pref_store.cc
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/common/pref_store.h"
-
-size_t PrefStore::NumberOfObservers() const {
-  return 0;
-}
-
-bool PrefStore::IsInitializationComplete() const {
-  return true;
-}