Send a subtree of same-process PageStates for back/forward child frames.

content/browser/frame_host/navigation_request.cc

 // Copyright 2014 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.
 
 #include "content/browser/frame_host/navigation_request.h"
 
 #include <utility>
 
 #include "content/browser/appcache/appcache_navigation_handle.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
@@ skipping 192 matching lines @@
   std::unique_ptr<NavigationRequest> navigation_request(new NavigationRequest(
       frame_tree_node, entry.ConstructCommonNavigationParams(
                            frame_entry, request_body, dest_url, dest_referrer,
                            navigation_type, lofi_state, navigation_start),
       BeginNavigationParams(entry.extra_headers(), net::LOAD_NORMAL,
                             false,  // skip_service_worker
                             REQUEST_CONTEXT_TYPE_LOCATION),
       entry.ConstructRequestNavigationParams(
           frame_entry, is_same_document_history_load,
           is_history_navigation_in_new_child,
-          entry.GetSubframeUniqueNames(frame_tree_node),
+          entry.GetSubtreePageStates(frame_tree_node),
           frame_tree_node->has_committed_real_load(),
           controller->GetPendingEntryIndex() == -1,
           controller->GetIndexOfEntry(&entry),
           controller->GetLastCommittedEntryIndex(),
           controller->GetEntryCount()),
       true, &frame_entry, &entry));
   return navigation_request;
 }
 
 // static
 std::unique_ptr<NavigationRequest> NavigationRequest::CreateRendererInitiated(
     FrameTreeNode* frame_tree_node,
     const CommonNavigationParams& common_params,
     const BeginNavigationParams& begin_params,
     int current_history_list_offset,
     int current_history_list_length) {
   // TODO(clamy): Check if some PageState should be provided here.
   // TODO(clamy): See how we should handle override of the user agent when the
   // navigation may start in a renderer and commit in another one.
   // TODO(clamy): See if the navigation start time should be measured in the
   // renderer and sent to the browser instead of being measured here.
   // TODO(clamy): The pending history list offset should be properly set.
   RequestNavigationParams request_params(
-      false,                          // is_overriding_user_agent
-      std::vector<GURL>(),            // redirects
-      false,                          // can_load_local_resources
-      PageState(),                    // page_state
-      0,                              // nav_entry_id
-      false,                          // is_same_document_history_load
-      false,                          // is_history_navigation_in_new_child
-      std::map<std::string, bool>(),  // subframe_unique_names
+      false,                               // is_overriding_user_agent
+      std::vector<GURL>(),                 // redirects
+      false,                               // can_load_local_resources
+      PageState(),                         // page_state
+      0,                                   // nav_entry_id
+      false,                               // is_same_document_history_load
+      false,                               // is_history_navigation_in_new_child
+      std::map<std::string, PageState>(),  // subtree_page_states
       frame_tree_node->has_committed_real_load(),
       false,  // intended_as_new_entry
       -1,     // pending_history_list_offset
       current_history_list_offset, current_history_list_length,
       false,   // is_view_source
       false);  // should_clear_history_list
   std::unique_ptr<NavigationRequest> navigation_request(
       new NavigationRequest(frame_tree_node, common_params, begin_params,
                             request_params, false, nullptr, nullptr));
   return navigation_request;
@@ skipping 400 matching lines @@
   TransferNavigationHandleOwnership(render_frame_host);
 
   render_frame_host->CommitNavigation(response_.get(), std::move(body_),
                                       common_params_, request_params_,
                                       is_view_source_);
 
   frame_tree_node_->ResetNavigationRequest(true);
 }
 
 }  // namespace content