Classify navigations without page id in parallel to the existing classifier.

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 "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/navigation_controller_impl.h"
 #include "content/browser/frame_host/navigation_request_info.h"
@@ skipping 72 matching lines @@
         reinterpret_cast<const char *>(
             entry.GetBrowserInitiatedPostData()->front()),
         entry.GetBrowserInitiatedPostData()->size());
   }
 
   scoped_ptr<NavigationRequest> navigation_request(new NavigationRequest(
       frame_tree_node, entry.ConstructCommonNavigationParams(navigation_type),
       BeginNavigationParams(method, headers.ToString(),
                             LoadFlagFromNavigationType(navigation_type), false),
       entry.ConstructRequestNavigationParams(
-          navigation_start, controller->GetIndexOfEntry(&entry),
+          navigation_start,
+          controller->GetPendingEntryIndex() == -1,
+          controller->GetIndexOfEntry(&entry),
           controller->GetLastCommittedEntryIndex(),
           controller->GetEntryCount()),
       request_body, true, &entry));
   return navigation_request.Pass();
 }
 
 // static
 scoped_ptr<NavigationRequest> NavigationRequest::CreateRendererInitiated(
     FrameTreeNode* frame_tree_node,
     const CommonNavigationParams& common_params,
@@ skipping 106 matching lines @@
   frame_tree_node_->navigator()->FailedNavigation(
       frame_tree_node_, has_stale_copy_in_cache, net_error);
 }
 
 void NavigationRequest::OnRequestStarted(base::TimeTicks timestamp) {
   frame_tree_node_->navigator()->LogResourceRequestTime(timestamp,
                                                         common_params_.url);
 }
 
 }  // namespace content