Add a chrome://flags entry for experimental productivity features

Bug: 837344
Change-Id: Ie1367ed1c12c714bad4d6aa28aa989b2a712c309
Reviewed-on: https://chromium-review.googlesource.com/1030841
Commit-Queue: Ian Clelland <[email protected]>
Reviewed-by: John Abd-El-Malek <[email protected]>
Cr-Commit-Position: refs/heads/master@{#555968}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 537eff0d..c1ed29d 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -3897,6 +3897,10 @@
     {"enable-sync-uss-sessions", flag_descriptions::kEnableSyncUSSSessionsName,
      flag_descriptions::kEnableSyncUSSSessionsDescription, kOsAll,
      FEATURE_VALUE_TYPE(switches::kSyncUSSSessions)},
+    {"enable-experimental-productivity-features",
+     flag_descriptions::kExperimentalProductivityFeaturesName,
+     flag_descriptions::kExperimentalProductivityFeaturesDescription, kOsAll,
+     FEATURE_VALUE_TYPE(features::kExperimentalProductivityFeatures)},
 
 #if defined(OS_CHROMEOS)
     {"enable-overview-swipe-to-close",