Move PrefRegistrySimple to use unique_ptr<Value>

chrome/browser/plugins/plugins_resource_service.cc

Index: chrome/browser/plugins/plugins_resource_service.cc
diff --git a/chrome/browser/plugins/plugins_resource_service.cc b/chrome/browser/plugins/plugins_resource_service.cc
index 9ebdd0f7730f0dc8f9a709ed67094cf5d6f0f5d2..2b60a596426d6af87ba66de05373e1c5498ded79 100644
--- a/chrome/browser/plugins/plugins_resource_service.cc
+++ b/chrome/browser/plugins/plugins_resource_service.cc
@@ -6,6 +6,7 @@
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/memory/ptr_util.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/plugins/plugin_finder.h"
@@ -71,7 +72,7 @@ PluginsResourceService::~PluginsResourceService() {
 // static
 void PluginsResourceService::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterDictionaryPref(prefs::kPluginsMetadata,
-                                   new base::DictionaryValue());
+                                   base::MakeUnique<base::DictionaryValue>());
   registry->RegisterStringPref(prefs::kPluginsResourceCacheUpdate, "0");
 }