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

chrome/browser/ui/cocoa/passwords/auto_signin_view_controller.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 <algorithm>
 
 #import "chrome/browser/ui/cocoa/passwords/auto_signin_view_controller.h"
 
 #include "base/mac/bind_objc_block.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/chrome_style.h"
 #import "chrome/browser/ui/cocoa/passwords/account_avatar_fetcher_manager.h"
 #import "chrome/browser/ui/cocoa/passwords/credential_item_button.h"
 #import "chrome/browser/ui/cocoa/passwords/passwords_bubble_utils.h"
 #include "chrome/browser/ui/passwords/manage_passwords_bubble_model.h"
 #include "chrome/browser/ui/passwords/manage_passwords_view_utils.h"
 #include "grit/generated_resources.h"
 #include "skia/ext/skia_utils_mac.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/font_list.h"
 
 namespace {
-const int kAutoSigninToastTimeoutSeconds = 3;
+constexpr int kAutoSigninToastTimeoutSeconds = 3;
 }  // namespace
 
 @interface AutoSigninViewController () {
   base::scoped_nsobject<CredentialItemButton> credentialView_;
   base::scoped_nsobject<AccountAvatarFetcherManager> avatarManager_;
   std::unique_ptr<base::Timer> timer_;
 }
 - (instancetype)
 initWithAvatarManager:(AccountAvatarFetcherManager*)avatarManager
              delegate:(id<BasePasswordsContentViewDelegate>)delegate;
@@ skipping 46 matching lines @@
                         forView:credentialView_];
   }
   [credentialView_ sizeToFit];
   NSRect frame = [credentialView_ frame];
   frame.size.height += 2 * kVerticalAvatarMargin;
   [credentialView_ setFrame:frame];
   [self setView:credentialView_];
 }
 
 @end