Sync Promo: Add a way to collapse the sync promo

chrome/browser/content_settings/content_settings_pref_provider.cc

Index: chrome/browser/content_settings/content_settings_pref_provider.cc
diff --git a/chrome/browser/content_settings/content_settings_pref_provider.cc b/chrome/browser/content_settings/content_settings_pref_provider.cc
index 56ac49b9fc5e60583aa9e405b6d9fb500ff1b71d..659f522d746da467d828f0104650eb55502de425 100644
--- a/chrome/browser/content_settings/content_settings_pref_provider.cc
+++ b/chrome/browser/content_settings/content_settings_pref_provider.cc
@@ -1031,6 +1031,8 @@ void PrefProvider::MigrateObsoleteContentSettingsPatternPref(
          i != all_settings_dictionary->end_keys();
          ++i) {
       const std::string& key(*i);
+      if (key.empty())

[James Hawkins, 2011/07/20 01:55:26]

When does this happen?

[sail, 2011/07/20 19:40:25]

Oops, this is a separate change. Removed.

+        continue;
 
       // Validate pattern string and skip it if it is invalid.
       std::pair<ContentSettingsPattern, ContentSettingsPattern> pattern_pair =