Change 'const' -> 'constexpr' in cocoa/passwords.

chrome/browser/ui/cocoa/passwords/base_passwords_controller_test.mm

 // 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 "chrome/browser/ui/cocoa/passwords/base_passwords_controller_test.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/password_manager/password_store_factory.h"
 #include "chrome/browser/ui/passwords/manage_passwords_ui_controller_mock.h"
 #include "components/password_manager/core/browser/mock_password_store.h"
 #include "components/password_manager/core/browser/password_manager_test_utils.h"
 #include "content/public/test/web_contents_tester.h"
 
 namespace {
-const char kSiteOrigin[] = "http://example.com/login";
+constexpr char kSiteOrigin[] = "http://example.com/login";
 }
 
 using testing::Return;
 using testing::ReturnRef;
 
 ManagePasswordsControllerTest::
     ManagePasswordsControllerTest() {
 }
 
 ManagePasswordsControllerTest::
@@ skipping 85 matching lines @@
 @implementation ContentViewDelegateMock
 
 @synthesize model = _model;
 @synthesize dismissed = _dismissed;
 
 - (void)viewShouldDismiss {
   _dismissed = YES;
 }
 
 @end