Replicate feature policy container policies.

third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.h

 /*
  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef HTMLFrameOwnerElement_h
 #define HTMLFrameOwnerElement_h
 
 #include "core/CoreExport.h"
 #include "core/dom/Document.h"
 #include "core/frame/DOMWindow.h"
 #include "core/frame/FrameOwner.h"
 #include "core/html/HTMLElement.h"
+#include "platform/feature_policy/FeaturePolicy.h"
 #include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollTypes.h"
 #include "platform/weborigin/SecurityPolicy.h"
 #include "platform/wtf/HashCountedSet.h"
 
 namespace blink {
 
 class ExceptionState;
 class Frame;
 class FrameOrPlugin;
@@ skipping 49 matching lines @@
     return getAttribute(HTMLNames::nameAttr);
   }
   ScrollbarMode ScrollingMode() const override { return kScrollbarAuto; }
   int MarginWidth() const override { return -1; }
   int MarginHeight() const override { return -1; }
   bool AllowFullscreen() const override { return false; }
   bool AllowPaymentRequest() const override { return false; }
   bool IsDisplayNone() const override { return !widget_; }
   AtomicString Csp() const override { return g_null_atom; }
   const WebVector<WebFeaturePolicyFeature>& AllowedFeatures() const override;
+  const WebParsedFeaturePolicy& ContainerPolicy() const override;
+
+  // For unit tests, manually trigger the UpdateContainerPolicy method.
+  void UpdateContainerPolicyForTests() { UpdateContainerPolicy(); }
 
   DECLARE_VIRTUAL_TRACE();
 
  protected:
   HTMLFrameOwnerElement(const QualifiedName& tag_name, Document&);
   void SetSandboxFlags(SandboxFlags);
 
   bool LoadOrRedirectSubframe(const KURL&,
                               const AtomicString& frame_name,
                               bool replace_current_item);
   bool IsKeyboardFocusable() const override;
 
   void DisposeFrameOrPluginSoon(FrameOrPlugin*);
   void FrameOwnerPropertiesChanged();
 
+  // Return the origin which is to be used for feature policy container
+  // policies, as "the origin of the URL in the frame's src attribute" (see
+  // https://wicg.github.io/feature-policy/#iframe-allow-attribute).
+  // This method is intended to be overridden by specific frame classes.
+  virtual RefPtr<SecurityOrigin> GetOriginForFeaturePolicy() const {
+    return SecurityOrigin::CreateUnique();
+  }
+
+  // Construct a new feature policy container policy for this frame, based on
+  // the frame attributes and the effective origin specified in the frame
+  // attributes.
+  void UpdateContainerPolicy();
+
  private:
   // Intentionally private to prevent redundant checks when the type is
   // already HTMLFrameOwnerElement.
   bool IsLocal() const final { return true; }
   bool IsRemote() const final { return false; }
 
   bool IsFrameOwnerElement() const final { return true; }
 
   virtual ReferrerPolicy ReferrerPolicyAttribute() {
     return kReferrerPolicyDefault;
   }
 
   Member<Frame> content_frame_;
   Member<FrameViewBase> widget_;
   SandboxFlags sandbox_flags_;
+
+  WebParsedFeaturePolicy container_policy_;
 };
 
 DEFINE_ELEMENT_TYPE_CASTS(HTMLFrameOwnerElement, IsFrameOwnerElement());
 
 class SubframeLoadingDisabler {
   STACK_ALLOCATED();
 
  public:
   explicit SubframeLoadingDisabler(Node& root)
       : SubframeLoadingDisabler(&root) {}
@@ skipping 31 matching lines @@
 
 DEFINE_TYPE_CASTS(HTMLFrameOwnerElement,
                   FrameOwner,
                   owner,
                   owner->IsLocal(),
                   owner.IsLocal());
 
 }  // namespace blink
 
 #endif  // HTMLFrameOwnerElement_h