[sync] skeleton implementation of TypedURLSyncBridge

chrome/browser/sync/chrome_sync_client.cc

Index: chrome/browser/sync/chrome_sync_client.cc
diff --git a/chrome/browser/sync/chrome_sync_client.cc b/chrome/browser/sync/chrome_sync_client.cc
index 6669f37510fc8c7d1c91e4172bf2cb86c55ed79a..2670cc4e134483e7da6d37621da72e5cdac14fc2 100644
--- a/chrome/browser/sync/chrome_sync_client.cc
+++ b/chrome/browser/sync/chrome_sync_client.cc
@@ -551,6 +551,10 @@ ChromeSyncClient::GetSyncBridgeForModelType(syncer::ModelType type) {
           ->GetSyncBridge()
           ->AsWeakPtr();
 #endif  // defined(OS_CHROMEOS)
+    case syncer::TYPED_URLS:
+      // TODO(gangwu):implement TypedURLSyncBridge and return real
+      // TypedURLSyncBridge here.
+      return base::WeakPtr<syncer::ModelTypeSyncBridge>();
     default:
       NOTREACHED();
       return WeakPtr<syncer::ModelTypeSyncBridge>();