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

ui/views/controls/image_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/views/controls/image_view.h"
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "ui/accessibility/ax_view_state.h"
@@ skipping 52 matching lines @@
 const gfx::ImageSkia& ImageView::GetImage() {
   return image_;
 }
 
 void ImageView::SetImageSize(const gfx::Size& image_size) {
   image_size_set_ = true;
   image_size_ = image_size;
   PreferredSizeChanged();
 }
 
-bool ImageView::GetImageSize(gfx::Size* image_size) {
+bool ImageView::GetImageSize(gfx::Size* image_size) const {
   DCHECK(image_size);
   if (image_size_set_)
     *image_size = image_size_;
   return image_size_set_;
 }
 
 gfx::Rect ImageView::GetImageBounds() const {
   gfx::Size image_size(image_size_set_ ?
     image_size_ : gfx::Size(image_.width(), image_.height()));
   return gfx::Rect(ComputeImageOrigin(image_size), image_size);
 }
 
 void ImageView::ResetImageSize() {
   image_size_set_ = false;
 }
 
 void ImageView::SetFocusPainter(scoped_ptr<Painter> focus_painter) {
   focus_painter_ = focus_painter.Pass();
 }
 
-gfx::Size ImageView::GetPreferredSize() {
+gfx::Size ImageView::GetPreferredSize() const {
   gfx::Insets insets = GetInsets();
   if (image_size_set_) {
     gfx::Size image_size;
     GetImageSize(&image_size);
     image_size.Enlarge(insets.width(), insets.height());
     return image_size;
   }
   return gfx::Size(image_.width() + insets.width(),
                    image_.height() + insets.height());
 }
@@ skipping 123 matching lines @@
     canvas->DrawImageInt(image_, 0, 0, image_.width(), image_.height(),
         image_bounds.x(), image_bounds.y(), image_bounds.width(),
         image_bounds.height(), true, paint);
   } else {
     canvas->DrawImageInt(image_, image_bounds.x(), image_bounds.y());
   }
   last_painted_bitmap_pixels_ = GetBitmapPixels(image_, last_paint_scale_);
 }
 
 }  // namespace views