  struct CustomContextMenuContext;
  struct DropData;
  struct Manifest;
-@@ -149,6 +151,10 @@ class WebContents : public PageNavigator,
-     // RenderFrame, have already been created on the renderer side, and
-     // WebContents construction should take this into account.
-     bool renderer_initiated_creation;
+@@ -157,6 +159,10 @@ class WebContents : public PageNavigator,
+     // Note that the pre-created renderer process may not be used if the first
+     // navigation requires a dedicated or privileged process, such as a WebUI.
+     bool initialize_renderer;
 +
 +    // Optionally specify the view and delegate view.
 +    content::WebContentsView* view = nullptr;

diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 5621f82..7e494a4 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -1511,6 +1511,12 @@ void WebContentsImpl::Init(const WebContents::CreateParams& params) {
   std::string unique_name = params.main_frame_name;
   frame_tree_.root()->SetFrameName(params.main_frame_name, unique_name);
 

   CHECK(render_view_host_delegate_view_);
   CHECK(view_.get());
 
@@ -4652,6 +4659,7 @@ void WebContentsImpl::RendererUnresponsive(
   // We might have been waiting for both beforeunload and unload ACK.
   // Check if tab is to be unloaded first.
   if (rfhi->IsWaitingForUnloadACK()) {
+#if 0
     // Hang occurred while firing the unload handler.
     // Pretend the handler fired so tab closing continues as if it had.
     GetRenderViewHost()->set_sudden_termination_allowed(true);
@@ -4663,6 +4671,7 @@ void WebContentsImpl::RendererUnresponsive(
     // to recover. Pretend the unload listeners have all fired and close
     // the tab.
     Close();
+#endif
     return;
   }
 
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index 9ccb6fe..7ffaa63 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -55,8 +55,10 @@ class PageState;
