Fix user agent override restore pipeline

chrome/browser/ui/browser_tabrestore.cc

Index: chrome/browser/ui/browser_tabrestore.cc
diff --git a/chrome/browser/ui/browser_tabrestore.cc b/chrome/browser/ui/browser_tabrestore.cc
index 01624985809f3d27bd99d2b0f6df0b50e5348407..2fbdc10ee22826f7974e3ed40327e0afa63a9ee0 100644
--- a/chrome/browser/ui/browser_tabrestore.cc
+++ b/chrome/browser/ui/browser_tabrestore.cc
@@ -39,7 +39,8 @@ content::WebContents* AddRestoredTab(
     bool select,
     bool pin,
     bool from_last_session,
-    content::SessionStorageNamespace* storage_namespace) {
+    content::SessionStorageNamespace* storage_namespace,
+    const std::string& user_agent_override) {
   GURL restore_url = navigations.at(selected_navigation).virtual_url();
   TabContents* tab_contents = chrome::TabContentsFactory(
       browser->profile(),
@@ -52,6 +53,7 @@ content::WebContents* AddRestoredTab(
   std::vector<NavigationEntry*> entries;
   TabNavigation::CreateNavigationEntriesFromTabNavigations(
       browser->profile(), navigations, &entries);
+  new_tab->SetUserAgentOverride(user_agent_override);
   new_tab->GetController().Restore(
       selected_navigation, from_last_session, &entries);
   DCHECK_EQ(0u, entries.size());
@@ -92,7 +94,8 @@ void ReplaceRestoredTab(
     int selected_navigation,
     bool from_last_session,
     const std::string& extension_app_id,
-    content::SessionStorageNamespace* session_storage_namespace) {
+    content::SessionStorageNamespace* session_storage_namespace,
+    const std::string& user_agent_override) {
   GURL restore_url = navigations.at(selected_navigation).virtual_url();
   TabContents* tab_contents = chrome::TabContentsFactory(
       browser->profile(),
@@ -102,6 +105,7 @@ void ReplaceRestoredTab(
       session_storage_namespace);
   tab_contents->extension_tab_helper()->SetExtensionAppById(extension_app_id);
   WebContents* replacement = tab_contents->web_contents();
+  replacement->SetUserAgentOverride(user_agent_override);
   std::vector<NavigationEntry*> entries;
   TabNavigation::CreateNavigationEntriesFromTabNavigations(
       browser->profile(), navigations, &entries);