ui: Make gfx::Size::Scale() mutate the class. Add gfx::ScaleSize() similar to Rect/Point.

chrome/browser/chromeos/status/network_menu_icon.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 "chrome/browser/chromeos/status/network_menu_icon.h"
 
 #include <algorithm>
 #include <cmath>
 #include <map>
 #include <utility>
@@ skipping 166 matching lines @@
 
 class EmptyImageSource: public gfx::ImageSkiaSource {
  public:
   explicit EmptyImageSource(const gfx::Size& size)
       : size_(size) {
   }
 
   virtual gfx::ImageSkiaRep GetImageForScale(
       ui::ScaleFactor scale_factor) OVERRIDE {
     gfx::Size pixel_size = gfx::ToFlooredSize(
-        size_.Scale(ui::GetScaleFactorScale(scale_factor)));
+        gfx::ScaleSize(size_, ui::GetScaleFactorScale(scale_factor)));
     SkBitmap empty_bitmap = GetEmptyBitmap(pixel_size);
     return gfx::ImageSkiaRep(empty_bitmap, scale_factor);
   }
  private:
   const gfx::Size size_;
 
   DISALLOW_COPY_AND_ASSIGN(EmptyImageSource);
 };
 
 // This defines how we assemble a network icon.
@@ skipping 755 matching lines @@
 gfx::ImageSkia* NetworkMenuIcon::GetVirtualNetworkImage() {
   return ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
       IDR_STATUSBAR_VPN);
 }
 
 int NetworkMenuIcon::NumImages(ImageType type) {
   return (type == ARCS) ? kNumArcsImages : kNumBarsImages;
 }
 
 }  // chromeos