fix typo in HaTS feature flag

Change-Id: I317fb5b20ec0d69f1d090ec0e1fb44ca8943e6de
Reviewed-on: https://chromium-review.googlesource.com/c/1309311
Commit-Queue: Mark Pearson <mpearson@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605087}

AUTHORS

@@ -21,6 +21,7 @@ Adam Bonner <abonner-chromium@solscope.com>
 Adam Kallai <kadam@inf.u-szeged.hu>
 Adam Roben <adam@github.com>
 Adam Treat <adam.treat@samsung.com>
+Adam Yi <i@adamyi.com>
 Addanki Gandhi Kishor <kishor.ag@samsung.com>
 Adenilson Cavalcanti <a.cavalcanti@samsung.com>
 Aditya Bhargava <heuristicist@gmail.com>

chrome/browser/about_flags.cc

@@ -4343,7 +4343,7 @@ const FeatureEntry kFeatureEntries[] = {
 #endif  // OS_WIN
 
 #if !defined(OS_ANDROID)
-    {"happiness-tarcking-surveys-for-desktop",
+    {"happiness-tracking-surveys-for-desktop",
      flag_descriptions::kHappinessTrackingSurveysForDesktopName,
      flag_descriptions::kHappinessTrackingSurveysForDesktopDescription,
      kOsDesktop,