Settings reset prompt: Enable the feature for fieldtrial testing.

chrome/browser/safe_browsing/settings_reset_prompt/settings_reset_prompt_config.h

Index: chrome/browser/safe_browsing/settings_reset_prompt/settings_reset_prompt_config.h
diff --git a/chrome/browser/safe_browsing/settings_reset_prompt/settings_reset_prompt_config.h b/chrome/browser/safe_browsing/settings_reset_prompt/settings_reset_prompt_config.h
index 7162a01ed1fe15f9534892d1d9732a0514d64115..39fe982ad131b79c1754a49b570cbdb6953a6572 100644
--- a/chrome/browser/safe_browsing/settings_reset_prompt/settings_reset_prompt_config.h
+++ b/chrome/browser/safe_browsing/settings_reset_prompt/settings_reset_prompt_config.h
@@ -65,6 +65,10 @@ class SettingsResetPromptConfig {
   std::unordered_map<SHA256Hash, int, SHA256HashHasher> domain_hashes_;
 
   // Other feature parameters.
+  //
+  // If you add any required feature parameters, make sure to update the field
+  // trial testing configuration for the "SettingsResetPrompt" feature in
+  // src/testing/variations/fieldtrial_testing_config.json
   base::TimeDelta delay_before_prompt_;
   int prompt_wave_ = 0;
   base::TimeDelta time_between_prompts_;