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

chrome/browser/ui/views/panels/panel_frame_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/panels/panel_frame_view.h"
 
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_constants.h"
 #include "chrome/browser/ui/views/panels/panel_view.h"
 #include "chrome/browser/ui/views/tab_icon_view.h"
@@ skipping 471 matching lines @@
 }
 
 void PanelFrameView::UpdateWindowIcon() {
   title_icon_->SchedulePaint();
 }
 
 void PanelFrameView::UpdateWindowTitle() {
   title_label_->SetText(panel_view_->panel()->GetWindowTitle());
 }
 
-gfx::Size PanelFrameView::GetPreferredSize() {
+gfx::Size PanelFrameView::GetPreferredSize() const {
   gfx::Size pref_size =
       panel_view_->window()->client_view()->GetPreferredSize();
   gfx::Rect bounds(0, 0, pref_size.width(), pref_size.height());
   return panel_view_->window()->non_client_view()->
       GetWindowBoundsForClientBounds(bounds).size();
 }
 
 const char* PanelFrameView::GetClassName() const {
   return kViewClassName;
 }
 
-gfx::Size PanelFrameView::GetMinimumSize() {
+gfx::Size PanelFrameView::GetMinimumSize() const {
   return panel_view_->GetMinimumSize();
 }
 
 gfx::Size PanelFrameView::GetMaximumSize() {
   return panel_view_->GetMaximumSize();
 }
 
 void PanelFrameView::Layout() {
   is_frameless_ = ShouldRenderAsFrameless();
 
@@ skipping 244 matching lines @@
 
   // Draw the left border.
   canvas->TileImageInt(left_image,
                        0,
                        top_left_image.height(),
                        left_image.width(),
                        height() - top_left_image.height() -
                            bottom_left_image.height());
 #endif
 }