chromeos: Delete old, unused contacts code.

chrome/browser/autocomplete/autocomplete_provider.cc

Index: chrome/browser/autocomplete/autocomplete_provider.cc
diff --git a/chrome/browser/autocomplete/autocomplete_provider.cc b/chrome/browser/autocomplete/autocomplete_provider.cc
index 76f5074b2ff5a7a68bb47dc7181a34e83ef2603b..acd9878a47bc27fb0486f0640feb748f6aa727fc 100644
--- a/chrome/browser/autocomplete/autocomplete_provider.cc
+++ b/chrome/browser/autocomplete/autocomplete_provider.cc
@@ -38,8 +38,6 @@ const char* AutocompleteProvider::TypeToString(Type type) {
       return "Bookmark";
     case TYPE_BUILTIN:
       return "Builtin";
-    case TYPE_CONTACT:
-      return "Contact";
     case TYPE_EXTENSION_APP:
       return "ExtensionApp";
     case TYPE_HISTORY_QUICK:
@@ -75,8 +73,6 @@ metrics::OmniboxEventProto_ProviderType AutocompleteProvider::
       return metrics::OmniboxEventProto::BOOKMARK;
     case TYPE_BUILTIN:
       return metrics::OmniboxEventProto::BUILTIN;
-    case TYPE_CONTACT:
-      return metrics::OmniboxEventProto::CONTACT;
     case TYPE_EXTENSION_APP:
       return metrics::OmniboxEventProto::EXTENSION_APPS;
     case TYPE_HISTORY_QUICK: