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

ash/system/web_notification/web_notification_tray.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/web_notification/web_notification_tray.h"
 
 #include "ash/ash_switches.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_layout_manager_observer.h"
@@ skipping 250 matching lines @@
     // TODO(mukai): move NINE_PLUS message to ui_strings, it doesn't need to be
     // in ash_strings.
     unread_label_->SetText((unread_count > 9) ?
         l10n_util::GetStringUTF16(IDS_ASH_NOTIFICATION_UNREAD_COUNT_NINE_PLUS) :
         base::FormatNumber(unread_count));
     UpdateIconVisibility();
   }
 
  protected:
   // Overridden from views::ImageButton:
-  virtual gfx::Size GetPreferredSize() OVERRIDE {
+  virtual gfx::Size GetPreferredSize() const OVERRIDE {
     return gfx::Size(kShelfItemHeight, kShelfItemHeight);
   }
 
-  virtual int GetHeightForWidth(int width) OVERRIDE {
+  virtual int GetHeightForWidth(int width) const OVERRIDE {
     return GetPreferredSize().height();
   }
 
  private:
   void UpdateIconVisibility() {
     unread_label_->SetEnabledColor(
         (!is_bubble_visible_ && unread_count_ > 0) ?
         kWebNotificationColorWithUnread : kWebNotificationColorNoUnread);
     SchedulePaint();
   }
@@ skipping 208 matching lines @@
 
 void WebNotificationTray::OnMouseExitedView() {}
 
 base::string16 WebNotificationTray::GetAccessibleNameForBubble() {
   return GetAccessibleNameForTray();
 }
 
 gfx::Rect WebNotificationTray::GetAnchorRect(
     views::Widget* anchor_widget,
     views::TrayBubbleView::AnchorType anchor_type,
-    views::TrayBubbleView::AnchorAlignment anchor_alignment) {
+    views::TrayBubbleView::AnchorAlignment anchor_alignment) const {
   return GetBubbleAnchorRect(anchor_widget, anchor_type, anchor_alignment);
 }
 
 void WebNotificationTray::HideBubble(const views::TrayBubbleView* bubble_view) {
   HideBubbleWithView(bubble_view);
 }
 
 bool WebNotificationTray::ShowNotifierSettings() {
   if (message_center_bubble()) {
     static_cast<message_center::MessageCenterBubble*>(
@@ skipping 97 matching lines @@
 
 message_center::MessageCenterBubble*
 WebNotificationTray::GetMessageCenterBubbleForTest() {
   if (!message_center_bubble())
     return NULL;
   return static_cast<message_center::MessageCenterBubble*>(
       message_center_bubble()->bubble());
 }
 
 }  // namespace ash