Upstream session_backend_android.

chrome/browser/sessions/tab_restore_service.cc

Index: chrome/browser/sessions/tab_restore_service.cc
diff --git a/chrome/browser/sessions/tab_restore_service.cc b/chrome/browser/sessions/tab_restore_service.cc
index 76d97bd538aec6eecf91a7a5e067520c6f52dbbe..ec8a9c3c2088207bcd5844ddcb64235ddf2d1887 100644
--- a/chrome/browser/sessions/tab_restore_service.cc
+++ b/chrome/browser/sessions/tab_restore_service.cc
@@ -536,6 +536,7 @@ void TabRestoreService::PopulateTab(Tab* tab,
     tab->current_navigation_index = 0;
   tab->tabstrip_index = index;
 
+#if !defined(OS_ANDROID)

[Yaron, 2012/08/01 20:45:02]

I don't believe this is necessary. We now compile with the shell of the
extension system. The "if (extension)" check will just always be false on
Android.

[felipeg, 2012/08/02 13:07:01]

Done.

   TabContents* tab_contents =
       TabContents::FromWebContents(controller->GetWebContents());
   // tab_contents is NULL in some browser tests.
@@ -545,6 +546,7 @@ void TabRestoreService::PopulateTab(Tab* tab,
     if (extension)
       tab->extension_app_id = extension->id();
   }
+#endif
 
   tab->session_storage_namespace = controller->GetSessionStorageNamespace();