Solidify Entry discarding logic (NavigationHandle keeps its ID)

content/browser/frame_host/navigation_request.cc

Index: content/browser/frame_host/navigation_request.cc
diff --git a/content/browser/frame_host/navigation_request.cc b/content/browser/frame_host/navigation_request.cc
index df0f7a1e7b7128331b36debd5882b31dd4f37bd5..3e9ef875e747d26eac3678569091f8ae00d49fa6 100644
--- a/content/browser/frame_host/navigation_request.cc
+++ b/content/browser/frame_host/navigation_request.cc
@@ -226,9 +226,10 @@ void NavigationRequest::BeginNavigation() {
       frame_tree_node_, nullptr, scoped_ptr<StreamHandle>());
 }
 
-void NavigationRequest::CreateNavigationHandle() {
+void NavigationRequest::CreateNavigationHandle(int pending_nav_entry_id) {
   navigation_handle_ = NavigationHandleImpl::Create(
-      common_params_.url, frame_tree_node_, common_params_.navigation_start);
+      common_params_.url, frame_tree_node_, common_params_.navigation_start,
+      pending_nav_entry_id);
 }
 
 void NavigationRequest::TransferNavigationHandleOwnership(