Make session restore understand that tabs have multiple SessionStorageNamespaces.

chrome/browser/sessions/tab_restore_service_delegate.h

Index: chrome/browser/sessions/tab_restore_service_delegate.h
diff --git a/chrome/browser/sessions/tab_restore_service_delegate.h b/chrome/browser/sessions/tab_restore_service_delegate.h
index f2d90740a6f23195efee59f745095a70638adbbc..30d00dd476cc1ff0c2f84646752e87db9b9e6ef8 100644
--- a/chrome/browser/sessions/tab_restore_service_delegate.h
+++ b/chrome/browser/sessions/tab_restore_service_delegate.h
@@ -9,6 +9,7 @@
 #include <vector>
 
 #include "chrome/browser/sessions/session_id.h"
+#include "content/public/browser/navigation_controller.h"
 
 class Profile;
 class TabNavigation;
@@ -51,13 +52,13 @@ class TabRestoreServiceDelegate {
       bool select,
       bool pin,
       bool from_last_session,
-      content::SessionStorageNamespace* storage_namespace) = 0;
+      const content::SessionStorageNamespaceMap& storage_namespace_map) = 0;
   virtual void ReplaceRestoredTab(
       const std::vector<TabNavigation>& navigations,
       int selected_navigation,
       bool from_last_session,
       const std::string& extension_app_id,
-      content::SessionStorageNamespace* session_storage_namespace) = 0;
+      const content::SessionStorageNamespaceMap& storage_namespace_map) = 0;
   virtual void CloseTab() = 0;
 
   // see Browser::Create