[ash/shelf] ResourceBundle should be used as pointer not non-const ref

ash/shelf/shelf_widget.cc

 // Copyright 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/shelf/shelf_widget.h"
 
 #include "ash/ash_switches.h"
 #include "ash/focus_cycler.h"
 #include "ash/root_window_controller.h"
 #include "ash/session/session_state_delegate.h"
@@ skipping 154 matching lines @@
 void DimmerView::ForceUndimming(bool force) {
   bool previous = force_hovered_;
   force_hovered_ = force;
   // If the forced change does change the result we apply the change.
   if (is_hovered_ || force_hovered_ != is_hovered_ || previous)
     SetHovered(is_hovered_);
 }
 
 void DimmerView::OnPaintBackground(gfx::Canvas* canvas) {
   SkPaint paint;
-  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
+  ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
   gfx::ImageSkia shelf_background =
-      *rb.GetImageNamed(IDR_ASH_SHELF_DIMMING).ToImageSkia();
+      *rb->GetImageNamed(IDR_ASH_SHELF_DIMMING).ToImageSkia();
 
   if (shelf_->GetAlignment() != ash::SHELF_ALIGNMENT_BOTTOM) {
     shelf_background = gfx::ImageSkiaOperations::CreateRotatedImage(
         shelf_background,
         shelf_->shelf_layout_manager()->SelectValueForShelfAlignment(
             SkBitmapOperations::ROTATION_90_CW,
             SkBitmapOperations::ROTATION_90_CW,
             SkBitmapOperations::ROTATION_270_CW,
             SkBitmapOperations::ROTATION_180_CW));
   }
@@ skipping 268 matching lines @@
   return dimmer_.get() && dimmer_->IsVisible();
 }
 
 void ShelfWidget::DelegateView::SetParentLayer(ui::Layer* layer) {
   layer->Add(&opaque_background_);
   layer->Add(&opaque_foreground_);
   ReorderLayers();
 }
 
 void ShelfWidget::DelegateView::OnPaintBackground(gfx::Canvas* canvas) {
-  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
+  ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
   gfx::ImageSkia shelf_background =
-      *rb.GetImageSkiaNamed(IDR_ASH_SHELF_BACKGROUND);
+      *rb->GetImageSkiaNamed(IDR_ASH_SHELF_BACKGROUND);
   if (SHELF_ALIGNMENT_BOTTOM != shelf_->GetAlignment())
     shelf_background = gfx::ImageSkiaOperations::CreateRotatedImage(
         shelf_background,
         shelf_->shelf_layout_manager()->SelectValueForShelfAlignment(
             SkBitmapOperations::ROTATION_90_CW,
             SkBitmapOperations::ROTATION_90_CW,
             SkBitmapOperations::ROTATION_270_CW,
             SkBitmapOperations::ROTATION_180_CW));
   const gfx::Rect dock_bounds(shelf_->shelf_layout_manager()->dock_bounds());
   SkPaint paint;
@@ skipping 12 matching lines @@
                            ? width() - dock_bounds.width()
                            : width(),
                        height(),
                        false,
                        paint);
   if (SHELF_ALIGNMENT_BOTTOM == shelf_->GetAlignment() &&
       dock_bounds.width() > 0) {
     // The part of the shelf background that is in the corner below the docked
     // windows close to the work area is an arched gradient that blends
     // vertically oriented docked background and horizontal shelf.
-    gfx::ImageSkia shelf_corner = *rb.GetImageSkiaNamed(IDR_ASH_SHELF_CORNER);
+    gfx::ImageSkia shelf_corner = *rb->GetImageSkiaNamed(IDR_ASH_SHELF_CORNER);
     if (dock_bounds.x() == 0) {
       shelf_corner = gfx::ImageSkiaOperations::CreateRotatedImage(
           shelf_corner, SkBitmapOperations::ROTATION_90_CW);
     }
     canvas->DrawImageInt(
         shelf_corner,
         0,
         0,
         shelf_corner.width(),
         shelf_corner.height(),
@@ skipping 326 matching lines @@
   DCHECK(delegate_view_);
   return delegate_view_->disable_dimming_animations_for_test();
 }
 
 void ShelfWidget::WillDeleteShelf() {
   shelf_layout_manager_->RemoveObserver(this);
   shelf_layout_manager_ = NULL;
 }
 
 }  // namespace ash