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

chrome/browser/ui/views/frame/contents_layout_manager.cc

 // Copyright 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/frame/contents_layout_manager.h"
 
 #include "ui/views/view.h"
 
 ContentsLayoutManager::ContentsLayoutManager(
     views::View* devtools_view,
@@ skipping 44 matching lines @@
   ApplyDevToolsContentsResizingStrategy(strategy_, container_size,
       old_devtools_bounds, old_contents_bounds,
       &new_devtools_bounds, &new_contents_bounds);
   new_devtools_bounds.Offset(0, top);
   new_contents_bounds.Offset(0, top);
 
   devtools_view_->SetBoundsRect(new_devtools_bounds);
   contents_view_->SetBoundsRect(new_contents_bounds);
 }
 
-gfx::Size ContentsLayoutManager::GetPreferredSize(views::View* host) {
+gfx::Size ContentsLayoutManager::GetPreferredSize(
+    const views::View* host) const {
   return gfx::Size();
 }
 
 void ContentsLayoutManager::Installed(views::View* host) {
   DCHECK(!host_);
   host_ = host;
 }
 
 void ContentsLayoutManager::Uninstalled(views::View* host) {
   DCHECK(host_ == host);
   host_ = NULL;
 }