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>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/browser/frame_host/frame_tree_node_blame_context.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/frame_host/render_frame_host_manager.h"
 #include "content/common/content_export.h"
+#include "content/common/feature_policy/feature_policy.h"

[raymes, 2017/02/01 22:42:21]

nit: I think we can forward declare this instead?

[iclelland, 2017/02/03 16:38:29]

Done.

 #include "content/common/frame_owner_properties.h"
 #include "content/common/frame_replication_state.h"
 #include "third_party/WebKit/public/platform/WebInsecureRequestPolicy.h"
 #include "url/gurl.h"
 #include "url/origin.h"
 
 namespace content {
 
 class FrameTree;
 class NavigationRequest;
@@ skipping 315 matching lines @@
   std::vector<std::unique_ptr<FrameTreeNode>> children_;
 
   // Whether this frame has committed any real load, replacing its initial
   // about:blank page.
   bool has_committed_real_load_;
 
   // Track information that needs to be replicated to processes that have
   // proxies for this frame.
   FrameReplicationState replication_state_;
 
+  std::unique_ptr<FeaturePolicy> feature_policy_;
+
   // Track the pending sandbox flags for this frame.  When a parent frame
   // dynamically updates sandbox flags in the <iframe> element for a child
   // frame, these updated flags are stored here and are transferred into
   // replication_state_.sandbox_flags when they take effect on the next frame
   // navigation.
   blink::WebSandboxFlags pending_sandbox_flags_;
 
   // Tracks the scrolling and margin properties for this frame.  These
   // properties affect the child renderer but are stored on its parent's
   // frame element.  When this frame's parent dynamically updates these
@@ skipping 19 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_