Delete base/prefs and update callers to use components.

components/content_settings/core/browser/cookie_settings.h

Index: components/content_settings/core/browser/cookie_settings.h
diff --git a/components/content_settings/core/browser/cookie_settings.h b/components/content_settings/core/browser/cookie_settings.h
index 31057e89864111b9cebced86ac15f873b4228dbe..681f04c65d96d4cc1ba7574ee6becd0d544978ed 100644
--- a/components/content_settings/core/browser/cookie_settings.h
+++ b/components/content_settings/core/browser/cookie_settings.h
@@ -10,12 +10,12 @@
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/prefs/pref_change_registrar.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/keyed_service/core/refcounted_keyed_service.h"
+#include "components/prefs/pref_change_registrar.h"
 
 class ContentSettingsPattern;
 class GURL;