A crazy experiment to figure out what test actually checks to see if this is there.

content/renderer/render_frame_impl.cc

 // 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.
 
 #include "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 3492 matching lines @@
   DCHECK_EQ(frame_, frame);
   // If this was a reference fragment navigation that we initiated, then we
   // could end up having a non-null pending navigation params.  We just need to
   // update the ExtraData on the datasource so that others who read the
   // ExtraData will get the new NavigationState.  Similarly, if we did not
   // initiate this navigation, then we need to take care to reset any pre-
   // existing navigation state to a content-initiated navigation state.
   // UpdateNavigationState conveniently takes care of this for us.
   DocumentState* document_state =
       DocumentState::FromDataSource(frame->dataSource());
-  UpdateNavigationState(document_state, true /* was_within_same_page */);
+  // UpdateNavigationState(document_state, true /* was_within_same_page */);
   static_cast<NavigationStateImpl*>(document_state->navigation_state())
       ->set_was_within_same_page(true);
 
   didCommitProvisionalLoad(frame, item, commit_type);
 }
 
 void RenderFrameImpl::didUpdateCurrentHistoryItem() {
   render_view_->StartNavStateSyncTimerIfNecessary(this);
 }
 
@@ skipping 2503 matching lines @@
                                     int match_count,
                                     int ordinal,
                                     const WebRect& selection_rect,
                                     bool final_status_update) {
   Send(new FrameHostMsg_Find_Reply(routing_id_, request_id, match_count,
                                    selection_rect, ordinal,
                                    final_status_update));
 }
 
 }  // namespace content