views: implement width snapping for DialogDelegateViews

chrome/browser/ui/views/passwords/auto_signin_first_run_dialog_view.cc

 // Copyright 2016 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/views/passwords/auto_signin_first_run_dialog_view.h"
 
 #include "chrome/browser/ui/passwords/password_dialog_controller.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/constrained_window/constrained_window_views.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 98 matching lines @@
   if (controller_)
     controller_->OnCloseDialog();
 }
 
 int AutoSigninFirstRunDialogView::GetDialogButtons() const {
   // None because ESC is equivalent to Cancel. It shouldn't turn off the auto
   // signin.
   return ui::DIALOG_BUTTON_NONE;
 }
 
-gfx::Size AutoSigninFirstRunDialogView::GetPreferredSize() const {
+gfx::Size AutoSigninFirstRunDialogView::GetUnsnappedPreferredSize() const {
   return gfx::Size(kDesiredWidth, GetHeightForWidth(kDesiredWidth));
 }
 
 void AutoSigninFirstRunDialogView::ButtonPressed(views::Button* sender,
                                                  const ui::Event& event) {
   if (sender == ok_button_)
     controller_->OnAutoSigninOK();
   else if (sender == turn_off_button_)
     controller_->OnAutoSigninTurnOff();
   else
@@ skipping 50 matching lines @@
       this, l10n_util::GetStringUTF16(IDS_AUTO_SIGNIN_FIRST_RUN_TURN_OFF));
   layout->AddView(ok_button_);
   layout->AddView(turn_off_button_);
   layout->AddPaddingRow(0, views::kButtonVEdgeMarginNew);
 }
 
 AutoSigninFirstRunPrompt* CreateAutoSigninPromptView(
     PasswordDialogController* controller, content::WebContents* web_contents) {
   return new AutoSigninFirstRunDialogView(controller, web_contents);
 }