Adding new feature flag for self share prototype

Change-Id: I8a2708b8f98e9911c0cd59e664dc7d0f2c819e4c
Reviewed-on: https://chromium-review.googlesource.com/c/1285524
Commit-Queue: Jeffrey Cohen <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Cr-Commit-Position: refs/heads/master@{#601980}
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index a15ee1c..d941c04 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -975,6 +975,9 @@
 extern const char kSavePreviousDocumentResourcesUntilOnDOMContentLoaded[];
 extern const char kSavePreviousDocumentResourcesUntilOnLoad[];
 
+extern const char kSendTabToSelfName[];
+extern const char kSendTabToSelfDescription[];
+
 extern const char kServiceWorkerPaymentAppsName[];
 extern const char kServiceWorkerPaymentAppsDescription[];