[Cronet] Add error code and immediatelyRetryable() to UrlRequestException

components/cronet/cronet_static.gypi

Index: components/cronet/cronet_static.gypi
diff --git a/components/cronet/cronet_static.gypi b/components/cronet/cronet_static.gypi
index 1557f8ac892f7955839193104e69ba76198f7b59..aff6ce4ff0720d230db566cf938517c549e3e691 100644
--- a/components/cronet/cronet_static.gypi
+++ b/components/cronet/cronet_static.gypi
@@ -9,7 +9,8 @@
     '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
     'cronet_features',
     'cronet_jni_headers',
-    'cronet_url_request_java',
+    'chromium_url_request_java',
+    'url_request_error_java',
     'cronet_version',
     'cronet_version_header',
     'metrics',
@@ -35,6 +36,8 @@
     'android/url_request_adapter.h',
     'android/url_request_context_adapter.cc',
     'android/url_request_context_adapter.h',
+    'android/url_request_error.cc',
+    'android/url_request_error.h',
     'android/wrapped_channel_upload_element_reader.cc',
     'android/wrapped_channel_upload_element_reader.h',
     'histogram_manager.cc',