Rewrite simple uses of base::ListValue::Append() taking a raw pointer var.

chrome/browser/extensions/api/font_settings/font_settings_api.cc

Index: chrome/browser/extensions/api/font_settings/font_settings_api.cc
diff --git a/chrome/browser/extensions/api/font_settings/font_settings_api.cc b/chrome/browser/extensions/api/font_settings/font_settings_api.cc
index 376a1763d599cab51907d9c86e2653bc952a0e02..c05bcfaeebf200fc6d62d180fac974f71a988097 100644
--- a/chrome/browser/extensions/api/font_settings/font_settings_api.cc
+++ b/chrome/browser/extensions/api/font_settings/font_settings_api.cc
@@ -340,10 +340,11 @@ bool FontSettingsGetFontListFunction::CopyFontsToResult(
       return false;
     }
 
-    base::DictionaryValue* font_name = new base::DictionaryValue();
+    std::unique_ptr<base::DictionaryValue> font_name(
+        new base::DictionaryValue());
     font_name->Set(kFontIdKey, new base::StringValue(name));
     font_name->Set(kDisplayNameKey, new base::StringValue(localized_name));
-    result->Append(font_name);
+    result->Append(std::move(font_name));
   }
 
   SetResult(std::move(result));