AU: HTTP success is not just 200, but anything in the 2xx range

libcurl_http_fetcher.cc

Index: libcurl_http_fetcher.cc
diff --git a/libcurl_http_fetcher.cc b/libcurl_http_fetcher.cc
index e2f18afcb66c0c5e3f71c8ca81fe97fe67193cc4..84f09726e1e1a027f5452be9d8a1b87e8262ab2f 100644
--- a/libcurl_http_fetcher.cc
+++ b/libcurl_http_fetcher.cc
@@ -119,8 +119,10 @@ bool LibcurlHttpFetcher::CurlPerformOnce() {
       return false;
     } else {
       if (delegate_) {
-        // success is when http_response_code is 200
-        delegate_->TransferComplete(this, http_response_code == 200);
+        // success is when http_response_code is 2xx
+        bool success = (http_response_code >= 200) &&
+            (http_response_code < 300);
+        delegate_->TransferComplete(this, success);
       }
     }
   } else {