[Clean up] Clean up some methods in PasswordManagerClient

components/password_manager/core/browser/password_generation_manager_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 <vector>
 
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 55 matching lines @@
  public:
   TestPasswordManagerClient(scoped_ptr<PrefService> prefs)
       : prefs_(prefs.Pass()),
         store_(new TestPasswordStore),
         driver_(this),
         is_sync_enabled_(false),
         is_off_the_record_(false) {}
 
   ~TestPasswordManagerClient() override { store_->Shutdown(); }
 
-  bool IsOffTheRecord() override { return is_off_the_record_; }
-  PasswordStore* GetPasswordStore() override { return store_.get(); }
+  bool IsOffTheRecord() const override { return is_off_the_record_; }
+  PasswordStore* GetPasswordStore() const override { return store_.get(); }
   PrefService* GetPrefs() override { return prefs_.get(); }
-  bool IsPasswordSyncEnabled(CustomPassphraseState state) override {
+  bool IsPasswordSyncEnabled(CustomPassphraseState state) const override {
     return is_sync_enabled_;
   }
 
   void set_is_password_sync_enabled(bool enabled) {
     is_sync_enabled_ = enabled;
   }
 
   TestPasswordManagerDriver* test_driver() { return &driver_; }
   void set_is_off_the_record(bool is_otr) { is_off_the_record_ = is_otr; }
 
@@ skipping 114 matching lines @@
   // be disabled.
   client_->set_is_off_the_record(true);
   PrefService* prefs = client_->GetPrefs();
   prefs->SetBoolean(prefs::kPasswordManagerSavingEnabled, true);
   client_->set_is_password_sync_enabled(true);
 
   EXPECT_FALSE(IsGenerationEnabled());
 }
 
 }  // namespace password_manager