Delete old Finch experiment about password smart bubble.

The experiment was launched with the threshold '3'.

Bug: 552010
Change-Id: I6bf72aa48715a15c021c907c1a6fd3f0de80a26d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1880042Reviewed-by: Nik Bhagat <nikunjb@chromium.org>
Commit-Queue: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710286}

chrome/browser/ui/passwords/manage_passwords_ui_controller_unittest.cc

@@ -180,17 +180,6 @@ void TestManagePasswordsUIController::HidePasswordBubble() {
   }
 }
 
-void CreateSmartBubbleFieldTrial() {
-  using password_bubble_experiment::kSmartBubbleExperimentName;
-  using password_bubble_experiment::kSmartBubbleThresholdParam;
-  std::map<std::string, std::string> params;
-  params[kSmartBubbleThresholdParam] =
-      base::NumberToString(kGreatDissmisalCount / 2);
-  variations::AssociateVariationParams(kSmartBubbleExperimentName, "A", params);
-  ASSERT_TRUE(
-      base::FieldTrialList::CreateFieldTrial(kSmartBubbleExperimentName, "A"));
-}
-
 }  // namespace
 
 class ManagePasswordsUIControllerTest : public ChromeRenderViewHostTestHarness {
@@ -428,7 +417,6 @@ TEST_F(ManagePasswordsUIControllerTest, BlacklistedFormPasswordSubmitted) {
 }
 
 TEST_F(ManagePasswordsUIControllerTest, PasswordSubmittedBubbleSuppressed) {
-  CreateSmartBubbleFieldTrial();
   std::unique_ptr<PasswordFormManager> test_form_manager(CreateFormManager());
   std::vector<password_manager::InteractionsStats> stats(1);
   stats[0].origin_domain = test_local_form().origin.GetOrigin();
@@ -447,7 +435,6 @@ TEST_F(ManagePasswordsUIControllerTest, PasswordSubmittedBubbleSuppressed) {
 }
 
 TEST_F(ManagePasswordsUIControllerTest, PasswordSubmittedBubbleNotSuppressed) {
-  CreateSmartBubbleFieldTrial();
   std::unique_ptr<PasswordFormManager> test_form_manager(CreateFormManager());
   std::vector<password_manager::InteractionsStats> stats(1);
   stats[0].origin_domain = test_local_form().origin.GetOrigin();

components/password_manager/core/browser/password_bubble_experiment.cc

@@ -19,9 +19,6 @@
 
 namespace password_bubble_experiment {
 
-const char kSmartBubbleExperimentName[] = "PasswordSmartBubble";
-const char kSmartBubbleThresholdParam[] = "dismissal_count";
-
 void RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterBooleanPref(
       password_manager::prefs::kWasSignInPasswordPromoClicked, false);
@@ -34,11 +31,7 @@ void RegisterPrefs(PrefRegistrySimple* registry) {
 }
 
 int GetSmartBubbleDismissalThreshold() {
-  std::string param = variations::GetVariationParamValue(
-      kSmartBubbleExperimentName, kSmartBubbleThresholdParam);
-  int threshold = 0;
-  // 3 is the default magic number that proved to show the best result.
-  return base::StringToInt(param, &threshold) ? threshold : 3;
+  return 3;
 }
 
 bool IsSmartLockUser(const syncer::SyncService* sync_service) {

components/password_manager/core/browser/password_bubble_experiment.h

@@ -14,9 +14,6 @@ class SyncService;
 
 namespace password_bubble_experiment {
 
-extern const char kSmartBubbleExperimentName[];
-extern const char kSmartBubbleThresholdParam[];
-
 // Registers prefs which controls appearance of the first run experience for the
 // Smart Lock UI, namely was first run experience shown for save prompt or auto
 // sign-in prompt.

testing/variations/fieldtrial_testing_config.json

@@ -4398,24 +4398,6 @@
             ]
         }
     ],
-    "PasswordSmartBubble": [
-        {
-            "platforms": [
-                "chromeos",
-                "linux",
-                "mac",
-                "windows"
-            ],
-            "experiments": [
-                {
-                    "name": "3-Times",
-                    "params": {
-                        "dismissal_count": "3"
-                    }
-                }
-            ]
-        }
-    ],
     "PauseBrowserInitiatedHeavyTrafficForP2P": [
         {
             "platforms": [