Abstract WebContents/NavigationController from core TabRestore code

chrome/browser/extensions/tab_helper.cc

Index: chrome/browser/extensions/tab_helper.cc
diff --git a/chrome/browser/extensions/tab_helper.cc b/chrome/browser/extensions/tab_helper.cc
index 72f9f5ad531ca2c00878a7704a8ccf043b58b9b3..90a6b1c44079061461565480501173552dafcea2 100644
--- a/chrome/browser/extensions/tab_helper.cc
+++ b/chrome/browser/extensions/tab_helper.cc
@@ -33,6 +33,7 @@
 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
+#include "components/sessions/content/content_open_tab.h"
 #include "content/public/browser/invalidate_type.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_details.h"
@@ -89,6 +90,9 @@ TabHelper::TabHelper(content::WebContents* web_contents)
   // The ActiveTabPermissionManager requires a session ID; ensure this
   // WebContents has one.
   SessionTabHelper::CreateForWebContents(web_contents);
+
+  sessions::ContentOpenTab::CreateForWebContents(web_contents);
+
   // The Unretained() is safe because ForEachFrame is synchronous.
   web_contents->ForEachFrame(
       base::Bind(&TabHelper::SetTabId, base::Unretained(this)));