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

ash/ime/candidate_view.cc

 // Copyright 2014 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/ime/candidate_view.h"
 
 #include "ash/ime/candidate_window_constants.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/base/ime/candidate_window.h"
 #include "ui/gfx/color_utils.h"
@@ skipping 12 matching lines @@
 // the vertical candidate window.
 class VerticalCandidateLabel : public views::Label {
  public:
   VerticalCandidateLabel() {}
 
  private:
   virtual ~VerticalCandidateLabel() {}
 
   // Returns the preferred size, but guarantees that the width has at
   // least kMinCandidateLabelWidth pixels.
-  virtual gfx::Size GetPreferredSize() OVERRIDE {
+  virtual gfx::Size GetPreferredSize() const OVERRIDE {
     gfx::Size size = Label::GetPreferredSize();
     size.SetToMax(gfx::Size(kMinCandidateLabelWidth, 0));
     size.SetToMin(gfx::Size(kMaxCandidateLabelWidth, size.height()));
     return size;
   }
 
   DISALLOW_COPY_AND_ASSIGN(VerticalCandidateLabel);
 };
 
 // Creates the shortcut label, and returns it (never returns NULL).
@@ skipping 221 matching lines @@
     infolist_icon_->SetBounds(
         right - kInfolistIndicatorIconWidth - kInfolistIndicatorIconPadding,
         kInfolistIndicatorIconPadding,
         kInfolistIndicatorIconWidth,
         height() - kInfolistIndicatorIconPadding * 2);
     right -= kInfolistIndicatorIconWidth + kInfolistIndicatorIconPadding * 2;
   }
   annotation_label_->SetBounds(x, 0, right - x, height());
 }
 
-gfx::Size CandidateView::GetPreferredSize() {
+gfx::Size CandidateView::GetPreferredSize() const {
   const int padding_width =
       orientation_ == ui::CandidateWindow::VERTICAL ? 4 : 6;
   gfx::Size size;
   if (shortcut_label_->visible()) {
     size = shortcut_label_->GetPreferredSize();
     size.SetToMax(gfx::Size(shortcut_width_, 0));
     size.Enlarge(padding_width, 0);
   }
   gfx::Size candidate_size = candidate_label_->GetPreferredSize();
   candidate_size.SetToMax(gfx::Size(candidate_width_, 0));
   size.Enlarge(candidate_size.width() + padding_width, 0);
   size.SetToMax(candidate_size);
   if (annotation_label_->visible()) {
     gfx::Size annotation_size = annotation_label_->GetPreferredSize();
     size.Enlarge(annotation_size.width() + padding_width, 0);
     size.SetToMax(annotation_size);
   }
 
   // Reserves the margin for infolist_icon even if it's not visible.
   size.Enlarge(
       kInfolistIndicatorIconWidth + kInfolistIndicatorIconPadding * 2, 0);
   return size;
 }
 
 }  // namespace ime
 }  // namespace ash