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

ui/views/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.
 
 #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first.
 
 #include "ui/views/view.h"
 
 #include <algorithm>
 #include <cmath>
@@ skipping 406 matching lines @@
   // Partially visible pixels should be considered visible.
   return gfx::ToEnclosingRect(views_vis_bounds);
 }
 
 gfx::Rect View::GetBoundsInScreen() const {
   gfx::Point origin;
   View::ConvertPointToScreen(this, &origin);
   return gfx::Rect(origin, size());
 }
 
-gfx::Size View::GetPreferredSize() {
+gfx::Size View::GetPreferredSize() const {
   if (layout_manager_.get())
     return layout_manager_->GetPreferredSize(this);
   return gfx::Size();
 }
 
 int View::GetBaseline() const {
   return -1;
 }
 
 void View::SizeToPreferredSize() {
   gfx::Size prefsize = GetPreferredSize();
   if ((prefsize.width() != width()) || (prefsize.height() != height()))
     SetBounds(x(), y(), prefsize.width(), prefsize.height());
 }
 
-gfx::Size View::GetMinimumSize() {
+gfx::Size View::GetMinimumSize() const {
   return GetPreferredSize();
 }
 
 gfx::Size View::GetMaximumSize() {
   return gfx::Size();
 }
 
-int View::GetHeightForWidth(int w) {
+int View::GetHeightForWidth(int w) const {
   if (layout_manager_.get())
     return layout_manager_->GetPreferredHeightForWidth(this, w);
   return GetPreferredSize().height();
 }
 
 void View::SetVisible(bool visible) {
   if (visible != visible_) {
     // If the View is currently visible, schedule paint to refresh parent.
     // TODO(beng): not sure we should be doing this if we have a layer.
     if (visible_)
@@ skipping 2073 matching lines @@
   // Message the RootView to do the drag and drop. That way if we're removed
   // the RootView can detect it and avoid calling us back.
   gfx::Point widget_location(event.location());
   ConvertPointToWidget(this, &widget_location);
   widget->RunShellDrag(this, data, widget_location, drag_operations, source);
   // WARNING: we may have been deleted.
   return true;
 }
 
 }  // namespace views