1 files changed, 52 insertions, 0 deletions
diff --git a/security/sandbox/chromium-shim/base/feature_list.h b/security/sandbox/chromium-shim/base/feature_list.h
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+++ b/security/sandbox/chromium-shim/base/feature_list.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This is a cut down version of base/feature_list.h.
+// This just returns the default state for a feature.
+
+#ifndef BASE_FEATURE_LIST_H_
+#define BASE_FEATURE_LIST_H_
+
+#include "base/macros.h"
+
+namespace base {
+
+// Specifies whether a given feature is enabled or disabled by default.
+enum FeatureState {
+  FEATURE_DISABLED_BY_DEFAULT,
+  FEATURE_ENABLED_BY_DEFAULT,
+};
+
+// The Feature struct is used to define the default state for a feature. See
+// comment below for more details. There must only ever be one struct instance
+// for a given feature name - generally defined as a constant global variable or
+// file static. It should never be used as a constexpr as it breaks
+// pointer-based identity lookup.
+struct BASE_EXPORT Feature {
+  // The name of the feature. This should be unique to each feature and is used
+  // for enabling/disabling features via command line flags and experiments.
+  // It is strongly recommended to use CamelCase style for feature names, e.g.
+  // "MyGreatFeature".
+  const char* const name;
+
+  // The default state (i.e. enabled or disabled) for this feature.
+  const FeatureState default_state;
+};
+
+class BASE_EXPORT FeatureList {
+ public:
+  static bool IsEnabled(const Feature& feature) {
+    return feature.default_state == FEATURE_ENABLED_BY_DEFAULT;
+  }
+
+  static FeatureList* GetInstance() { return nullptr; }
+
+  DISALLOW_COPY_AND_ASSIGN(FeatureList);
+};
+
+}  // namespace base
+
+#endif  // BASE_FEATURE_LIST_H_