New smart passsword bubble algorithm.

chrome/browser/ui/passwords/password_bubble_experiment.h

Index: chrome/browser/ui/passwords/password_bubble_experiment.h
diff --git a/chrome/browser/ui/passwords/password_bubble_experiment.h b/chrome/browser/ui/passwords/password_bubble_experiment.h
index 9c4d30272df0f8c84b14c8cb6b63ff4e3c76db1a..eca144bdba2ef3ba3bc64442361df9f4ca65808c 100644
--- a/chrome/browser/ui/passwords/password_bubble_experiment.h
+++ b/chrome/browser/ui/passwords/password_bubble_experiment.h
@@ -15,15 +15,15 @@ class PrefRegistrySyncable;
 class PrefService;
 
 // These functions handle the algorithms according to which the "Save password?"
-// bubble is shown to user.
+// bubble shows "No thanks" or "Never for this site" button default.
 namespace password_bubble_experiment {
 
 void RegisterPrefs(user_prefs::PrefRegistrySyncable* registry);
 
-// The decision is made based on the "PasswordBubbleAlgorithm" finch experiment.
-// The default value is true.
+// Returns true if "Never for this site" should be the default negative option.
+// Otherwise it's "No thanks". The default value is false.
 // It should be called before showing the "Save Password?" dialog.
-bool ShouldShowBubble(PrefService* prefs);
+bool ShouldShowNeverForThisSiteDefault(PrefService* prefs);
 
 // Should be called when user dismisses the "Save Password?" dialog. It stores
 // the statistics about interactions with the bubble.
@@ -34,23 +34,9 @@ void RecordBubbleClosed(
 // The name of the finch experiment controlling the algorithm.
 extern const char kExperimentName[];
 
-// The group name for the time based algorithm.
-extern const char kGroupTimeSpanBased[];
-
-// The group name for the probability algorithm.
-extern const char kGroupProbabilityBased[];
-
-// For "Probability" group. The additional "Saves" to be added to the model.
-extern const char kParamProbabilityFakeSaves[];
-
-// For "Probability" group. The interaction history length.
-extern const char kParamProbabilityInteractionsCount[];
-
-// For "TimeSpan" group. The time span until the nope counter is zeroed.
-extern const char kParamTimeSpan[];
-
-// For "TimeSpan" group. The nopes threshold.
-extern const char kParamTimeSpanNopeThreshold[];
+// The name of the finch parameter. It signifies the consecutive nopes
+// threshold after which the user sees "Never for this site" button by default.
+extern const char kParamNopeThreshold[];
 
 }  // namespace password_bubble_experiment