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

ui/message_center/views/notification_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 "ui/message_center/views/notification_view.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ui_resources.h"
@@ skipping 179 matching lines @@
 
 // NotificationProgressBar /////////////////////////////////////////////////////
 
 class NotificationProgressBar : public views::ProgressBar {
  public:
   NotificationProgressBar();
   virtual ~NotificationProgressBar();
 
  private:
   // Overriden from View
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationProgressBar);
 };
 
 NotificationProgressBar::NotificationProgressBar() {
 }
 
 NotificationProgressBar::~NotificationProgressBar() {
 }
 
-gfx::Size NotificationProgressBar::GetPreferredSize() {
+gfx::Size NotificationProgressBar::GetPreferredSize() const {
   gfx::Size pref_size(kProgressBarWidth, message_center::kProgressBarThickness);
   gfx::Insets insets = GetInsets();
   pref_size.Enlarge(insets.width(), insets.height());
   return pref_size;
 }
 
 void NotificationProgressBar::OnPaint(gfx::Canvas* canvas) {
   gfx::Rect content_bounds = GetContentsBounds();
 
   // Draw background.
@@ skipping 132 matching lines @@
   // image to overlap the content as needed to provide large enough click and
   // touch areas (<http://crbug.com/168822> and <http://crbug.com/168856>).
   AddChildView(small_image());
   AddChildView(close_button());
   SetAccessibleName(notification);
 }
 
 NotificationView::~NotificationView() {
 }
 
-gfx::Size NotificationView::GetPreferredSize() {
+gfx::Size NotificationView::GetPreferredSize() const {
   int top_width = top_view_->GetPreferredSize().width() +
                   icon_view_->GetPreferredSize().width();
   int bottom_width = bottom_view_->GetPreferredSize().width();
   int preferred_width = std::max(top_width, bottom_width) + GetInsets().width();
   return gfx::Size(preferred_width, GetHeightForWidth(preferred_width));
 }
 
-int NotificationView::GetHeightForWidth(int width) {
+int NotificationView::GetHeightForWidth(int width) const {
   // Get the height assuming no line limit changes.
   int content_width = width - GetInsets().width();
   int top_height = top_view_->GetHeightForWidth(content_width);
   int bottom_height = bottom_view_->GetHeightForWidth(content_width);
 
   // <http://crbug.com/230448> Fix: Adjust the height when the message_view's
   // line limit would be different for the specified width than it currently is.
   // TODO(dharcourt): Avoid BoxLayout and directly compute the correct height.
   if (message_view_) {
     int title_lines = 0;
@@ skipping 337 matching lines @@
     bottom_view_->AddChildView(separator);
     NotificationButton* button = new NotificationButton(this);
     ButtonInfo button_info = buttons[i];
     button->SetTitle(button_info.title);
     button->SetIcon(button_info.icon.AsImageSkia());
     action_buttons_.push_back(button);
     bottom_view_->AddChildView(button);
   }
 }
 
-int NotificationView::GetMessageLineLimit(int title_lines, int width) {
+int NotificationView::GetMessageLineLimit(int title_lines, int width) const {
   // Image notifications require that the image must be kept flush against
   // their icons, but we can allow more text if no image.
   int effective_title_lines = std::max(0, title_lines - 1);
   int line_reduction_from_title = (image_view_ ? 1 : 2) * effective_title_lines;
   if (!image_view_) {
     // Title lines are counted as twice as big as message lines for the purpose
     // of this calculation.
     // The effect from the title reduction here should be:
     //   * 0 title lines: 5 max lines message.
     //   * 1 title line:  5 max lines message.
@@ skipping 15 matching lines @@
   // The effect from the title reduction here should be:
   //   * 0 title lines: 2 max lines message + context message.
   //   * 1 title line:  2 max lines message + context message.
   //   * 2 title lines: 1 max lines message + context message.
   message_line_limit =
       std::max(0, message_line_limit - line_reduction_from_title);
 
   return message_line_limit;
 }
 
-int NotificationView::GetMessageHeight(int width, int limit) {
+int NotificationView::GetMessageHeight(int width, int limit) const {
   return message_view_ ?
          message_view_->GetSizeForWidthAndLines(width, limit).height() : 0;
 }
 
 }  // namespace message_center