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

content/browser/frame_host/frame_tree_node.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_FRAME_TREE_NODE_H_
 #define CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 143 matching lines @@
     return replication_state_.origin;
   }
 
   // Set the current origin and notify proxies about the update.
   void SetCurrentOrigin(const url::Origin& origin,
                         bool is_potentially_trustworthy_unique_origin);
 
   // Set the current name and notify proxies about the update.
   void SetFrameName(const std::string& name, const std::string& unique_name);
 
-  // Set the frame's feature policy from an HTTP header, clearing any existing
-  // policy.
+  // Set the frame's feature policy header, clearing any existing header.
   void SetFeaturePolicyHeader(const ParsedFeaturePolicyHeader& parsed_header);
 
-  // Clear any feature policy associated with the frame.
-  void ResetFeaturePolicy();
+  // Clear any feature policy header associated with the frame.
+  void ResetFeaturePolicyHeader();
 
   // Add CSP header to replication state and notify proxies about the update.
   void AddContentSecurityPolicy(const ContentSecurityPolicyHeader& header);
 
   // Discards previous CSP headers and notifies proxies about the update.
   // Typically invoked after committing navigation to a new document (since the
   // new document comes with a fresh set of CSP http headers).
   void ResetContentSecurityPolicy();
 
   // Sets the current insecure request policy, and notifies proxies about the
@@ skipping 220 matching lines @@
   // browser process activities to this node (when possible).  It is unrelated
   // to the core logic of FrameTreeNode.
   FrameTreeNodeBlameContext blame_context_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameTreeNode);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_