Simplify some code in c/b/u/views.

chrome/browser/ui/views/validation_message_bubble_view.cc

 // Copyright (c) 2013 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/validation_message_bubble_view.h"
 
 #include "chrome/grit/theme_resources.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/layout.h"
@@ skipping 57 matching lines @@
   int content_bottom = label->height();
 
   if (sub_label) {
     sub_label->SetBounds(text_start_x,
                          content_bottom + kTextVerticalMargin,
                          label_width,
                          sub_label->GetHeightForWidth(label_width));
     content_bottom += kTextVerticalMargin + sub_label->height();
   }
 
-  size_ = gfx::Size(text_start_x + label_width, content_bottom);
+  set_preferred_size(gfx::Size(text_start_x + label_width, content_bottom));
 
   views::BubbleDialogDelegateView::CreateBubble(this)->ShowInactive();
 }
 
 ValidationMessageBubbleView::~ValidationMessageBubbleView() {
 }
 
 gfx::Rect ValidationMessageBubbleView::RootViewToScreenRect(
     const gfx::Rect& rect_in_root_view,
     const content::RenderWidgetHostView* render_widget_host_view) const {
   gfx::NativeView view = render_widget_host_view->GetNativeView();
   const float scale = ui::GetScaleFactorForNativeView(view);
   return gfx::ScaleToEnclosingRect(rect_in_root_view, 1 / scale) +
          render_widget_host_view->GetViewBounds().origin().OffsetFromOrigin();
 }
 
-gfx::Size ValidationMessageBubbleView::GetPreferredSize() const {
-  return size_;
-}
-
 int ValidationMessageBubbleView::GetDialogButtons() const {
   return ui::DIALOG_BUTTON_NONE;
 }
 
 void ValidationMessageBubbleView::SetPositionRelativeToAnchor(
     content::RenderWidgetHost* widget_host,
     const gfx::Rect& anchor_in_root_view) {
   SetAnchorRect(
       RootViewToScreenRect(anchor_in_root_view, widget_host->GetView()));
 }
 
 void ValidationMessageBubbleView::CloseValidationMessage() {
   GetWidget()->Close();
 }