Add "AllArticles" mode to Reader Mode heuristics

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index e88f4d37d1bb8fc0b5e135f415b59f574afb23c7..e6ee8e714cfa9c6eb7ff3383aaa8ff14fb97c3bc 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -1931,11 +1931,13 @@ const char kAutofillAccessoryViewDescription[] =
 const char kReaderModeHeuristicsName[] = "Reader Mode triggering";
 
 const char kReaderModeHeuristicsDescription[] =
-    "Determines what pages the Reader Mode button is shown on.";
+    "Determines what pages the Reader Mode infobar is shown on.";
 
 const char kReaderModeHeuristicsMarkup[] = "With article structured markup";
 
-const char kReaderModeHeuristicsAdaboost[] = "Appears to be an article";
+const char kReaderModeHeuristicsAdaboost[] = "Non-mobile-friendly articles";
+
+const char kReaderModeHeuristicsAllArticles[] = "All articles";
 
 const char kReaderModeHeuristicsAlwaysOff[] = "Never";