Revert of Delete base/prefs and update callers to use components.

extensions/browser/extension_pref_value_map.cc

 // Copyright 2014 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 "extensions/browser/extension_pref_value_map.h"
 
+#include "base/prefs/pref_value_map.h"
 #include "base/values.h"
-#include "components/prefs/pref_value_map.h"
 
 using extensions::ExtensionPrefsScope;
 
 struct ExtensionPrefValueMap::ExtensionEntry {
   // Installation time of the extension.
   base::Time install_time;
   // Whether extension is enabled in the profile.
   bool enabled;
   // Whether the extension has access to the incognito profile.
   bool incognito_enabled;
@@ skipping 370 matching lines @@
 
 void ExtensionPrefValueMap::NotifyPrefValueChanged(const std::string& key) {
   FOR_EACH_OBSERVER(ExtensionPrefValueMap::Observer, observers_,
                     OnPrefValueChanged(key));
 }
 
 void ExtensionPrefValueMap::NotifyOfDestruction() {
   FOR_EACH_OBSERVER(ExtensionPrefValueMap::Observer, observers_,
                     OnExtensionPrefValueMapDestruction());
 }