Feature policy: Add basic algorithm for supporting frame policies.

third_party/WebKit/Source/core/frame/FeaturePolicyInFrameTest.cpp

 // 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.
 
 #include "platform/feature_policy/FeaturePolicy.h"
 
 #include "bindings/core/v8/ConditionalFeatures.h"
 #include "core/frame/LocalFrame.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/RuntimeEnabledFeatures.h"
@@ skipping 36 matching lines @@
     m_dummyPageHolder->document().setSecurityOrigin(m_originA);
   }
 
   ~FeaturePolicyInFrameTest() {
     RuntimeEnabledFeatures::setFeaturePolicyEnabled(m_frameworkWasEnabled);
   }
 
   std::unique_ptr<FeaturePolicy> createFromParentPolicy(
       const FeaturePolicy* parent,
       RefPtr<SecurityOrigin> origin) {
-    return FeaturePolicy::createFromParentPolicy(parent, origin, m_featureList);
+    return FeaturePolicy::createFromParentPolicy(parent, nullptr, origin,
+                                                 m_featureList);
   }
 
   Document& document() { return m_dummyPageHolder->document(); }
 
   LocalFrame* frame() { return m_dummyPageHolder->document().frame(); }
 
   RefPtr<SecurityOrigin> m_originA = SecurityOrigin::createFromString(ORIGIN_A);
   RefPtr<SecurityOrigin> m_originB = SecurityOrigin::createFromString(ORIGIN_B);
 
  private:
@@ skipping 56 matching lines @@
   std::unique_ptr<FeaturePolicy> policy1 =
       createFromParentPolicy(nullptr, m_originA);
   policy1->setHeaderPolicy(FeaturePolicy::parseFeaturePolicy(
       "{\"default-on\": []}", m_originA.get(), &messages));
   EXPECT_EQ(0UL, messages.size());
   document().setFeaturePolicyForTesting(std::move(policy1));
   EXPECT_TRUE(isFeatureEnabledInFrame(kDefaultOnFeature, frame()));
 }
 
 }  // namespace blink