Syntax and coverage checking added to Network Traffic Annotations.

net/url_request/url_fetcher.cc

Index: net/url_request/url_fetcher.cc
diff --git a/net/url_request/url_fetcher.cc b/net/url_request/url_fetcher.cc
index 6f020a89d01471c9834dbc570b7216c04a9e31f0..3db83ad5cc08f5c64308603bb76223722a724eff 100644
--- a/net/url_request/url_fetcher.cc
+++ b/net/url_request/url_fetcher.cc
@@ -25,7 +25,7 @@ std::unique_ptr<URLFetcher> URLFetcher::Create(
     const GURL& url,
     URLFetcher::RequestType request_type,
     URLFetcherDelegate* d) {
-  return Create(id, url, request_type, d, NO_TRAFFIC_ANNOTATION_YET);
+  return Create(id, url, request_type, d, MISSING_TRAFFIC_ANNOTATION);
 }
 
 // static
@@ -45,6 +45,7 @@ std::unique_ptr<URLFetcher> URLFetcher::Create(
     URLFetcherDelegate* d,
     NetworkTrafficAnnotationTag traffic_annotation) {
   URLFetcherFactory* factory = URLFetcherImpl::factory();
+  // TODO(rhalavati@): Add annotation to CreateURLFetcher.
   return factory ? factory->CreateURLFetcher(id, url, request_type, d)
                  : std::unique_ptr<URLFetcher>(new URLFetcherImpl(
                        url, request_type, d, traffic_annotation));