sync: Specialize functions that fetch type root

chrome/browser/sync/glue/typed_url_change_processor.cc

Index: chrome/browser/sync/glue/typed_url_change_processor.cc
diff --git a/chrome/browser/sync/glue/typed_url_change_processor.cc b/chrome/browser/sync/glue/typed_url_change_processor.cc
index 75f79303c012020fdee0c68dce2f62c83200589d..34c57f7baa71fba65b9f2c71d3840bd2a94ffd5f 100644
--- a/chrome/browser/sync/glue/typed_url_change_processor.cc
+++ b/chrome/browser/sync/glue/typed_url_change_processor.cc
@@ -111,7 +111,7 @@ bool TypedUrlChangeProcessor::CreateOrUpdateSyncNode(
   }
 
   syncer::ReadNode typed_url_root(trans);
-  if (typed_url_root.InitByTagLookup(kTypedUrlTag) !=
+  if (typed_url_root.InitTypeRoot(syncer::TYPED_URLS) !=
           syncer::BaseNode::INIT_OK) {
     error_handler()->OnSingleDatatypeUnrecoverableError(FROM_HERE,
         "Server did not create the top-level typed_url node. We "
@@ -252,7 +252,7 @@ void TypedUrlChangeProcessor::ApplyChangesFromSyncModel(
     return;
 
   syncer::ReadNode typed_url_root(trans);
-  if (typed_url_root.InitByTagLookup(kTypedUrlTag) !=
+  if (typed_url_root.InitTypeRoot(syncer::TYPED_URLS) !=
           syncer::BaseNode::INIT_OK) {
     error_handler()->OnSingleDatatypeUnrecoverableError(FROM_HERE,
         "TypedUrl root node lookup failed.");