Change Lo-Fi bool to bitmask to support multiple Previews types

content/browser/loader/resource_dispatcher_host_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.
 
 // This is the browser side of the resource dispatcher, it receives requests
 // from the child process (i.e. [Renderer, Plugin, Worker]ProcessHost), and
 // dispatches them to URLRequests. It then forwards the messages from the
 // URLRequests back to the correct process for handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
@@ skipping 303 matching lines @@
   // we mean setting the |referrer| on the |request|, associating the
   // ResourceRequestInfoImpl structure with the |request|, etc.
   // This function should be called for invoking the BeginURLRequest() function
   // to initiate a URL request.
   void InitializeURLRequest(net::URLRequest* request,
                             const Referrer& referrer,
                             bool is_download,
                             int render_process_host_id,
                             int render_view_routing_id,
                             int render_frame_routing_id,
+                            int previews_state,
                             ResourceContext* context);
 
   // Helper function for initiating a URL request. The |is_download| and
   // |is_content_initiated and |do_not_prompt_for_login| parameters are
   // specific to download requests.
   // TODO(ananta)
   // Look into a better way of passing these parameters in.
   // Please note that the InitializeURLRequest() function needs to be called
   // called to initialize the request before calling this function.
   void BeginURLRequest(std::unique_ptr<net::URLRequest> request,
@@ skipping 296 matching lines @@
                            int request_id,
                            net::RequestPriority new_priority,
                            int intra_priority_value);
 
   // Creates ResourceRequestInfoImpl for a download or page save.
   // |download| should be true if the request is a file download.
   ResourceRequestInfoImpl* CreateRequestInfo(
       int child_id,
       int render_view_route_id,
       int render_frame_route_id,
+      int previews_state,
       bool download,
       ResourceContext* context);
 
   // Relationship of resource being authenticated with the top level page.
   enum HttpAuthRelationType {
     HTTP_AUTH_RELATION_TOP,            // Top-level page itself
     HTTP_AUTH_RELATION_SAME_DOMAIN,    // Sub-content from same domain
     HTTP_AUTH_RELATION_BLOCKED_CROSS,  // Blocked Sub-content from cross domain
     HTTP_AUTH_RELATION_ALLOWED_CROSS,  // Allowed Sub-content per command line
     HTTP_AUTH_RELATION_LAST
@@ skipping 132 matching lines @@
 
   // Points to the registered download handler intercept.
   CreateDownloadHandlerIntercept create_download_handler_intercept_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_DISPATCHER_HOST_IMPL_H_