Initial Implementation of Iframe Attribute for Feature Policy (Part 3)

third_party/WebKit/Source/platform/feature_policy/FeaturePolicy.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 "platform/RuntimeEnabledFeatures.h"
 #include "platform/json/JSONValues.h"
 #include "platform/network/HTTPParsers.h"
 #include "platform/weborigin/SecurityOrigin.h"
@@ skipping 95 matching lines @@
             messages->push_back("Whitelist is not an array of strings.");
         }
       }
       whitelist.origins = origins;
       whitelists.push_back(whitelist);
     }
   }
   return whitelists;
 }
 
+// TODO(lunalu): also take information of allowfullscreen and
+// allowpaymentrequest into account when constructing the whitelist.
+WebParsedFeaturePolicy getContainerPolicyFromAllowedFeatures(
+    const WebVector<WebFeaturePolicyFeature>& features,
+    RefPtr<SecurityOrigin> origin) {
+  Vector<WebParsedFeaturePolicyDeclaration> whitelists;
+  for (const WebFeaturePolicyFeature feature : features) {
+    WebParsedFeaturePolicyDeclaration whitelist;
+    whitelist.feature = feature;
+    whitelist.origins =
+        Vector<WebSecurityOrigin>(static_cast<size_t>(1), {origin});

[iclelland, 2017/03/15 17:14:54]

I think that "1UL" is usually enough to avoid the implicit static_cast on a
constant like that.

+    whitelists.push_back(whitelist);
+  }
+  return whitelists;
+}
+
 }  // namespace blink