Abstract WebContents/NavigationController from core TabRestore code

components/sessions/core/tab_restore_service_client.cc

Index: components/sessions/core/tab_restore_service_client.cc
diff --git a/components/sessions/core/tab_restore_service_client.cc b/components/sessions/core/tab_restore_service_client.cc
index 78e5057843ec15950276c4e61e6ff9d147807402..15af1be444e5997efe7b50ee73ef3db827a7492e 100644
--- a/components/sessions/core/tab_restore_service_client.cc
+++ b/components/sessions/core/tab_restore_service_client.cc
@@ -10,9 +10,8 @@ TabClientData::~TabClientData() {}
 
 TabRestoreServiceClient::~TabRestoreServiceClient() {}
 
-scoped_ptr<TabClientData>
-TabRestoreServiceClient::GetTabClientDataForWebContents(
-    content::WebContents* web_contents) {
+scoped_ptr<TabClientData> TabRestoreServiceClient::GetTabClientDataForTab(
+    OpenTab* tab) {
   return nullptr;
 }