views: implement width snapping for DialogDelegateViews

chrome/browser/ui/views/harmony/layout_delegate.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/harmony/layout_delegate.h"
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "chrome/browser/ui/views/chrome_views_delegate.h"
 #include "chrome/browser/ui/views/harmony/chrome_typography.h"
@@ skipping 72 matching lines @@
 }
 
 bool LayoutDelegate::ShouldShowWindowIcon() const {
   return true;
 }
 
 bool LayoutDelegate::IsHarmonyMode() const {
   return false;
 }
 
-int LayoutDelegate::GetDialogPreferredWidth(DialogWidth width) const {
-  return 0;
+int LayoutDelegate::GetSnappedDialogWidth(int width) const {
+  return width;
 }
 
 const views::TypographyProvider& LayoutDelegate::GetTypographyProvider() const {
   // This is not a data member because then HarmonyLayoutDelegate would inherit
   // it, even when it provides its own.
   CR_DEFINE_STATIC_LOCAL(LegacyTypographyProvider, legacy_provider, ());
   return legacy_provider;
 }