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

chrome/browser/ui/views/download/download_shelf_view.cc

 // Copyright (c) 2012 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/download/download_shelf_view.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 147 matching lines @@
 
 void DownloadShelfView::OpenedDownload(DownloadItemView* view) {
   if (CanAutoClose())
     mouse_watcher_.Start();
 }
 
 content::PageNavigator* DownloadShelfView::GetNavigator() {
   return browser_;
 }
 
-gfx::Size DownloadShelfView::GetPreferredSize() {
+gfx::Size DownloadShelfView::GetPreferredSize() const {
   gfx::Size prefsize(kRightPadding + kLeftPadding + kCloseAndLinkPadding, 0);
   AdjustSize(close_button_, &prefsize);
   AdjustSize(show_all_view_, &prefsize);
   // Add one download view to the preferred size.
   if (!download_views_.empty()) {
     AdjustSize(*download_views_.begin(), &prefsize);
     prefsize.Enlarge(kDownloadPadding, 0);
   }
   prefsize.Enlarge(0, kTopBottomPadding + kTopBottomPadding);
   if (shelf_animation_->is_animating()) {
@@ skipping 235 matching lines @@
   }
 }
 
 bool DownloadShelfView::CanAutoClose() {
   for (size_t i = 0; i < download_views_.size(); ++i) {
     if (!download_views_[i]->download()->GetOpened())
       return false;
   }
   return true;
 }