Revert of Stop passing raw pointers to base::Value API in c/b/ui

chrome/browser/ui/webui/options/core_options_handler.h

Index: chrome/browser/ui/webui/options/core_options_handler.h
diff --git a/chrome/browser/ui/webui/options/core_options_handler.h b/chrome/browser/ui/webui/options/core_options_handler.h
index 1ff2c16f66475f82569634ff604f93fdbe13252a..ae17b2003e8d9ef116ab4d90819d3f41bb934d95 100644
--- a/chrome/browser/ui/webui/options/core_options_handler.h
+++ b/chrome/browser/ui/webui/options/core_options_handler.h
@@ -6,7 +6,6 @@
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CORE_OPTIONS_HANDLER_H_
 
 #include <map>
-#include <memory>
 #include <string>
 
 #include "base/callback.h"
@@ -46,7 +45,7 @@
  protected:
   // Fetches a pref value of given |pref_name|.
   // Note that caller owns the returned Value.
-  virtual std::unique_ptr<base::Value> FetchPref(const std::string& pref_name);
+  virtual base::Value* FetchPref(const std::string& pref_name);
 
   // Observes a pref of given |pref_name|.
   virtual void ObservePref(const std::string& pref_name);
@@ -89,7 +88,7 @@
   // Creates dictionary value for the pref described by |pref_name|.
   // If |controlling_pref| is not empty, it describes the pref that manages
   // |pref| via policy or extension.
-  virtual std::unique_ptr<base::Value> CreateValueForPref(
+  virtual base::Value* CreateValueForPref(
       const std::string& pref_name,
       const std::string& controlling_pref_name);