Popular sites on the NTP: check that experiment group StartsWith (rather than IS) "Enabled"

chrome/browser/android/most_visited_sites.cc

Index: chrome/browser/android/most_visited_sites.cc
diff --git a/chrome/browser/android/most_visited_sites.cc b/chrome/browser/android/most_visited_sites.cc
index 19216b2f77645e81a81ca1f85053ef599fd7042c..b9ecdde7a2ebd8d4811cba16af7857751b8e3a04 100644
--- a/chrome/browser/android/most_visited_sites.cc
+++ b/chrome/browser/android/most_visited_sites.cc
@@ -13,6 +13,7 @@
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
@@ -121,7 +122,8 @@ bool ShouldShowPopularSites() {
     return false;
   if (cmd_line->HasSwitch(switches::kEnableNTPPopularSites))
     return true;
-  return group_name == "Enabled";
+  return base::StartsWith(group_name, "Enabled",
+                          base::CompareCase::INSENSITIVE_ASCII);
 }
 
 std::string GetPopularSitesFilename() {