[FeaturePolicy] Initial implementation of Feature Policy

third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ConditionalFeatures_h
+#define ConditionalFeatures_h
+
+namespace WTF {
+
+class String;
+}
+
+namespace blink {
+
+class ExecutionContext;
+struct FeaturePolicyFeature;
+class Frame;
+
+void initializeConditionalFeatures(ExecutionContext*);
+bool isFeatureEnabledInFrame(const FeaturePolicyFeature*, const Frame*);
+
+} // namespace
+
+#endif // ConditionalFeatures_h