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

ash/system/tray/tray_item_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 "ash/system/tray/tray_item_view.h"
 
 #include "ash/shelf/shelf_types.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_item.h"
 #include "ui/compositor/layer.h"
@@ skipping 57 matching lines @@
   if (!set_visible) {
     animation_->Hide();
     AnimationProgressed(animation_.get());
   } else {
     animation_->Show();
     AnimationProgressed(animation_.get());
     views::View::SetVisible(true);
   }
 }
 
-gfx::Size TrayItemView::DesiredSize() {
+gfx::Size TrayItemView::DesiredSize() const {
   return views::View::GetPreferredSize();
 }
 
 int TrayItemView::GetAnimationDurationMS() {
   return kTrayItemAnimationDurationMS;
 }
 
-gfx::Size TrayItemView::GetPreferredSize() {
+gfx::Size TrayItemView::GetPreferredSize() const {
   gfx::Size size = DesiredSize();
   if (owner()->system_tray()->shelf_alignment() == SHELF_ALIGNMENT_BOTTOM ||
       owner()->system_tray()->shelf_alignment() == SHELF_ALIGNMENT_TOP)
     size.set_height(kTrayIconHeight);
   else
     size.set_width(kTrayIconWidth);
   if (!animation_.get() || !animation_->is_animating())
     return size;
   if (owner()->system_tray()->shelf_alignment() == SHELF_ALIGNMENT_BOTTOM ||
       owner()->system_tray()->shelf_alignment() == SHELF_ALIGNMENT_TOP) {
     size.set_width(std::max(1,
         static_cast<int>(size.width() * animation_->GetCurrentValue())));
   } else {
     size.set_height(std::max(1,
         static_cast<int>(size.height() * animation_->GetCurrentValue())));
   }
   return size;
 }
 
-int TrayItemView::GetHeightForWidth(int width) {
+int TrayItemView::GetHeightForWidth(int width) const {
   return GetPreferredSize().height();
 }
 
 void TrayItemView::ChildPreferredSizeChanged(views::View* child) {
   PreferredSizeChanged();
 }
 
 void TrayItemView::AnimationProgressed(const gfx::Animation* animation) {
   gfx::Transform transform;
   if (owner()->system_tray()->shelf_alignment() == SHELF_ALIGNMENT_BOTTOM ||
@@ skipping 13 matching lines @@
 void TrayItemView::AnimationEnded(const gfx::Animation* animation) {
   if (animation->GetCurrentValue() < 0.1)
     views::View::SetVisible(false);
 }
 
 void TrayItemView::AnimationCanceled(const gfx::Animation* animation) {
   AnimationEnded(animation);
 }
 
 }  // namespace ash