Migrate startup URLs pref.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 4d6417bc3d62ccda891c5f862977d678b7162011..a816d959e914fc93b657addc60abae91ac5824be 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -82,7 +82,12 @@ const char kRestoreOnStartupMigrated[] = "session.restore_on_startup_migrated";
 
 // The URLs to restore on startup or when the home button is pressed. The URLs
 // are only restored on startup if kRestoreOnStartup is 4.
-const char kURLsToRestoreOnStartup[] = "session.urls_to_restore_on_startup";
+const char kURLsToRestoreOnStartup[] = "session.startup_urls";
+
+// Old startup url pref and serialized migration time (see
+// base::Time::ToInternalValue for details).

[Alexei Svitkine (slow), 2013/10/15 14:40:55]

Nit: I'd have one comment above each constant below (so it's clear which is
which), rather than commenting them together.

[robertshield, 2013/10/15 18:00:44]

Done.

+const char kURLsToRestoreOnStartupOld[] = "session.urls_to_restore_on_startup";
+const char kRestoreStartupURLsMigrated[] = "session.startup_urls_migrated";
 
 // If set to true profiles are created in ephemeral mode and do not store their
 // data in the profile folder on disk but only in memory.