views: implement width snapping for DialogDelegateViews

chrome/browser/ui/views/autofill/card_unmask_prompt_views.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_AUTOFILL_CARD_UNMASK_PROMPT_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_AUTOFILL_CARD_UNMASK_PROMPT_VIEWS_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 37 matching lines @@
   // CardUnmaskPromptView
   void Show() override;
   void ControllerGone() override;
   void DisableAndWaitForVerification() override;
   void GotVerificationResult(const base::string16& error_message,
                              bool allow_retry) override;
 
   // views::DialogDelegateView
   View* GetContentsView() override;
   View* CreateFootnoteView() override;
+  gfx::Size GetUnsnappedPreferredSize() const override;
 
   // views::View
-  gfx::Size GetPreferredSize() const override;
   void Layout() override;
   int GetHeightForWidth(int width) const override;
   void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
   ui::ModalType GetModalType() const override;
   base::string16 GetWindowTitle() const override;
   void DeleteDelegate() override;
   base::string16 GetDialogButtonLabel(ui::DialogButton button) const override;
   bool ShouldDefaultButtonBeBlue() const override;
   bool IsDialogButtonEnabled(ui::DialogButton button) const override;
   View* GetInitiallyFocusedView() override;
@@ skipping 89 matching lines @@
   gfx::SlideAnimation overlay_animation_;
 
   base::WeakPtrFactory<CardUnmaskPromptViews> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CardUnmaskPromptViews);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_VIEWS_AUTOFILL_CARD_UNMASK_PROMPT_VIEWS_H_