Reenable feature policy control over fullscreen

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 69 matching lines @@
       whitelist.origins = origins;
       whitelists.push_back(whitelist);
     }
   }
   return whitelists;
 }
 
 bool IsSupportedInFeaturePolicy(WebFeaturePolicyFeature feature) {
   if (!RuntimeEnabledFeatures::FeaturePolicyEnabled())
     return false;
-
   switch (feature) {
-    // TODO(loonybear): Re-enabled fullscreen in feature policy once tests have
-    // been updated.
-    // crbug.com/666761
     case WebFeaturePolicyFeature::kFullscreen:
-      return false;
     case WebFeaturePolicyFeature::kPayment:
     case WebFeaturePolicyFeature::kUsb:
       return true;
     case WebFeaturePolicyFeature::kVibrate:
       return RuntimeEnabledFeatures::FeaturePolicyExperimentalFeaturesEnabled();
     default:
       return false;
   }
 }
 
@@ skipping 25 matching lines @@
       default_feature_name_map.Set("sync-script",
                                    WebFeaturePolicyFeature::kSyncScript);
       default_feature_name_map.Set("sync-xhr",
                                    WebFeaturePolicyFeature::kSyncXHR);
     }
   }
   return default_feature_name_map;
 }
 
 }  // namespace blink