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

ui/views/controls/table/table_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 "ui/views/controls/table/table_view.h"
 
 #include <map>
 
 #include "base/auto_reset.h"
 #include "base/i18n/rtl.h"
@@ skipping 300 matching lines @@
   gfx::Size pref = GetPreferredSize();
   int width = pref.width();
   int height = pref.height();
   if (parent()) {
     width = std::max(parent()->width(), width);
     height = std::max(parent()->height(), height);
   }
   SetBounds(x(), y(), width, height);
 }
 
-gfx::Size TableView::GetPreferredSize() {
+gfx::Size TableView::GetPreferredSize() const {
   int width = 50;
   if (header_ && !visible_columns_.empty())
     width = visible_columns_.back().x + visible_columns_.back().width;
   return gfx::Size(width, RowCount() * row_height_);
 }
 
 bool TableView::OnKeyPressed(const ui::KeyEvent& event) {
   if (!HasFocus())
     return false;
 
@@ skipping 567 matching lines @@
   if (tooltip)
     *tooltip = text;
   if (tooltip_origin) {
     tooltip_origin->SetPoint(cell_bounds.x(),
                              cell_bounds.y() + kTextVerticalPadding);
   }
   return true;
 }
 
 }  // namespace views