Introduce an NTPContentSuggestionsEnabled policy

components/policy/resources/policy_templates.json

Index: components/policy/resources/policy_templates.json
diff --git a/components/policy/resources/policy_templates.json b/components/policy/resources/policy_templates.json
index 36d615170dc9a92c178936d0bcec4415df65af59..7d1845987765b995466e3bc75531b7aa392df814 100644
--- a/components/policy/resources/policy_templates.json
+++ b/components/policy/resources/policy_templates.json
@@ -137,7 +137,7 @@
 #   persistent IDs for all fields (but not for groups!) are needed. These are
 #   specified by the 'id' keys of each policy. NEVER CHANGE EXISTING IDs,
 #   because doing so would break the deployed wire format!
-#   For your editing convenience: highest ID currently used: 337
+#   For your editing convenience: highest ID currently used: 338
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
@@ -8775,6 +8775,24 @@
 
       If this setting is not configured then users are able to turn Android Backup Service on and off in the Android Settings app.''',
     },
+    {
+      'name': 'NTPContentSuggestionsEnabled',
+      'type': 'main',
+      'schema': { 'type': 'boolean' },
+      'supported_on': ['android:54-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': True,
+      },
+      'example_value': True,
+      'id': 338,
+      'caption': '''Show content suggestions on the New Tab page''',
+      'tags': [],
+      'desc':
+      '''If this is set to true or not set, the New Tab page may show content suggestions based on the user's browsing history, interests, or location.
+
+      If this is set to false, automatically-generated content suggestions are not shown on the New Tab page.''',
+    },
   ],
   'messages': {
     # Messages that are not associated to any policies.