Added UMA statistics for change passwords in the Password Manager

chrome/browser/ui/passwords/manage_passwords_bubble_model_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/metrics/histogram_samples.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/histogram_tester.h"
 #include "chrome/browser/ui/passwords/manage_passwords_bubble.h"
 #include "chrome/browser/ui/passwords/manage_passwords_bubble_model.h"
@@ skipping 107 matching lines @@
       1);
 }
 
 TEST_F(ManagePasswordsBubbleModelTest, ClickSave) {
   base::HistogramTester histogram_tester;
   PretendPasswordWaiting();
   model_->OnSaveClicked();
   model_->OnBubbleHidden();
   EXPECT_EQ(model_->dismissal_reason(),
             password_manager::metrics_util::CLICKED_SAVE);
-  EXPECT_EQ(password_manager::ui::MANAGE_STATE, model_->state());
   EXPECT_TRUE(controller()->saved_password());
   EXPECT_FALSE(controller()->never_saved_password());
 
   histogram_tester.ExpectUniqueSample(
       kUIDismissalReasonMetric,
       password_manager::metrics_util::CLICKED_SAVE,
       1);
 }
 
 TEST_F(ManagePasswordsBubbleModelTest, ClickNever) {
@@ skipping 129 matching lines @@
   histogram_tester.ExpectUniqueSample(
       kUIDismissalReasonMetric,
       password_manager::metrics_util::AUTO_SIGNIN_TOAST_CLICKED,
       1);
 }
 
 TEST_F(ManagePasswordsBubbleModelTest, ClickUpdate) {
   PretendUpdatePasswordWaiting();
   model_->OnUpdateClicked(autofill::PasswordForm());
   model_->OnBubbleHidden();
-  EXPECT_EQ(password_manager::ui::MANAGE_STATE, model_->state());
   EXPECT_TRUE(controller()->updated_password());
   EXPECT_FALSE(controller()->never_saved_password());
 }