Add experimental code behind a flag for Content Size Policy

content/browser/loader/resource_request_info_impl.h

 // Copyright (c) 2012 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_LOADER_RESOURCE_REQUEST_INFO_IMPL_H_
 #define CONTENT_BROWSER_LOADER_RESOURCE_REQUEST_INFO_IMPL_H_
 
 #include <memory>
 #include <string>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/supports_user_data.h"
 #include "content/common/resource_request_body_impl.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/common/referrer.h"
 #include "content/public/common/resource_type.h"
 #include "net/base/load_states.h"
 
 namespace content {
 class CrossSiteResourceHandler;
 class DetachableResourceHandler;
 class ResourceContext;
 class ResourceMessageFilter;
 struct GlobalRequestID;
 struct GlobalRoutingID;
+struct GlobalFrameRoutingId;
 
 // Holds the data ResourceDispatcherHost associates with each request.
 // Retrieve this data by calling ResourceDispatcherHost::InfoForRequest.
 class ResourceRequestInfoImpl : public ResourceRequestInfo,
                                 public base::SupportsUserData::Data {
  public:
   // Returns the ResourceRequestInfoImpl associated with the given URLRequest.
   CONTENT_EXPORT static ResourceRequestInfoImpl* ForRequest(
       net::URLRequest* request);
 
@@ skipping 55 matching lines @@
   bool IsDownload() const override;
   bool IsUsingLoFi() const override;
   bool ShouldReportRawHeaders() const;
 
   CONTENT_EXPORT void AssociateWithRequest(net::URLRequest* request);
 
   CONTENT_EXPORT int GetRequestID() const;
   CONTENT_EXPORT GlobalRequestID GetGlobalRequestID() const;
   GlobalRoutingID GetGlobalRoutingID() const;
 
+  GlobalFrameRoutingId GetGlobalFrameRoutingId() const;
+
   // PlzNavigate
   // The id of the FrameTreeNode that initiated this request (for a navigation
   // request).
   int frame_tree_node_id() const { return frame_tree_node_id_; }
 
   // May be NULL (e.g., if process dies during a transfer).
   ResourceMessageFilter* filter() const {
     return filter_.get();
   }
 
@@ skipping 126 matching lines @@
   const std::string original_headers_;
   scoped_refptr<ResourceRequestBodyImpl> body_;
   bool initiated_in_secure_context_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceRequestInfoImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_REQUEST_INFO_IMPL_H_