Merge feed features together and add about flag

[email protected]

Change-Id: Idbb59948615ae5a7d66322a4f041f322d63ae559
Bug: 1078840
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2183005
Commit-Queue: Vincent Boisselle <[email protected]>
Reviewed-by: Vincent Boisselle <[email protected]>
Reviewed-by: Alexandre Frechette <[email protected]>
Reviewed-by: Dan H <[email protected]>
Cr-Commit-Position: refs/heads/master@{#767087}
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index e9eccb27..fab914da 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -1540,6 +1540,9 @@
 extern const char kRelatedSearchesName[];
 extern const char kRelatedSearchesDescription[];
 
+extern const char kReportFeedUserActionsName[];
+extern const char kReportFeedUserActionsDescription[];
+
 extern const char kSafeBrowsingUseLocalBlacklistsV2Name[];
 extern const char kSafeBrowsingUseLocalBlacklistsV2Description[];