views: Make view::Views::GetPreferredSize() const.

ash/system/tray/special_popup_row.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 "ash/system/tray/special_popup_row.h"
 
 #include "ash/system/tray/hover_highlight_view.h"
 #include "ash/system/tray/throbber_view.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_popup_header_button.h"
@@ skipping 78 matching lines @@
 }
 
 void SpecialPopupRow::AddThrobber(ThrobberView* throbber) {
   if (!button_container_) {
     button_container_ = CreatePopupHeaderButtonsContainer();
     AddChildView(button_container_);
   }
   button_container_->AddChildView(throbber);
 }
 
-gfx::Size SpecialPopupRow::GetPreferredSize() {
+gfx::Size SpecialPopupRow::GetPreferredSize() const {
   gfx::Size size = views::View::GetPreferredSize();
   size.set_height(kSpecialPopupRowHeight);
   return size;
 }
 
-int SpecialPopupRow::GetHeightForWidth(int width) {
+int SpecialPopupRow::GetHeightForWidth(int width) const {
   return kSpecialPopupRowHeight;
 }
 
 void SpecialPopupRow::Layout() {
   views::View::Layout();
   gfx::Rect content_bounds = GetContentsBounds();
   if (content_bounds.IsEmpty())
     return;
   if (!button_container_) {
     content_->SetBoundsRect(GetContentsBounds());
     return;
   }
 
   gfx::Rect bounds(button_container_->GetPreferredSize());
   bounds.set_height(content_bounds.height());
   gfx::Rect container_bounds = content_bounds;
   container_bounds.ClampToCenteredSize(bounds.size());
   container_bounds.set_x(content_bounds.width() - container_bounds.width());
   button_container_->SetBoundsRect(container_bounds);
 
   bounds = content_->bounds();
   bounds.set_width(button_container_->x());
   content_->SetBoundsRect(bounds);
 }
 
 }  // namespace ash