Introduce content-side Feature Policy object and maintain in parallel with renderer policy.

content/browser/frame_host/render_frame_host_impl.h

 // Copyright 2013 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 CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 63 matching lines @@
 }
 
 namespace gfx {
 class Range;
 }
 
 namespace content {
 class AppWebMessagePortMessageFilter;
 class AssociatedInterfaceProviderImpl;
 class CrossProcessFrameConnector;
+class FeaturePolicy;
 class FrameTree;
 class FrameTreeNode;
 class MediaInterfaceProxy;
 class NavigationHandleImpl;
 class PermissionServiceContext;
 class RenderFrameHostDelegate;
 class RenderFrameProxyHost;
 class RenderProcessHost;
 class RenderViewHostImpl;
 class RenderWidgetHostDelegate;
@@ skipping 494 matching lines @@
   // Destroys all WebUI instances and resets related data.
   void ClearAllWebUI();
 
   // Returns the Mojo ImageDownloader service.
   const content::mojom::ImageDownloaderPtr& GetMojoImageDownloader();
 
   // Resets the loading state. Following this call, the RenderFrameHost will be
   // in a non-loading state.
   void ResetLoadingState();
 
+  // Returns the feature policy which should be enforced on this RenderFrame.
+  FeaturePolicy* get_feature_policy() { return feature_policy_.get(); }
+
+  // Clears any existing policy and constructs a new policy for this frame,
+  // based on its parent frame.
+  void ResetFeaturePolicy();
+
   // Tells the renderer that this RenderFrame will soon be swapped out, and thus
   // not to create any new modal dialogs until it happens.  This must be done
   // separately so that the ScopedPageLoadDeferrers of any current dialogs are
   // no longer on the stack when we attempt to swap it out.
   void SuppressFurtherDialogs();
 
   void SetHasReceivedUserGesture();
 
   void ClearFocusedElement();
 
@@ skipping 540 matching lines @@
   std::vector<std::unique_ptr<service_manager::InterfaceRegistry>>
       media_registries_;
 
   std::unique_ptr<AssociatedInterfaceProviderImpl>
       remote_associated_interfaces_;
 
   // A bitwise OR of bindings types that have been enabled for this RenderFrame.
   // See BindingsPolicy for details.
   int enabled_bindings_ = 0;
 
+  // Tracks the feature policy which has been set on this frame.
+  std::unique_ptr<FeaturePolicy> feature_policy_;
+
   // NOTE: This must be the last member.
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_