Fix Jumplist favicons to have high resolution in HDPI Windows displays

ui/gfx/image/image.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/gfx/image/image.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 
@@ skipping 464 matching lines @@
   std::vector<ImagePNGRep> image_reps;
   image_reps.push_back(ImagePNGRep(input, 1.0f));
   return Image(image_reps);
 }
 
 const SkBitmap* Image::ToSkBitmap() const {
   // Possibly create and cache an intermediate ImageRepSkia.
   return ToImageSkia()->bitmap();
 }
 
+const SkBitmap* Image::ToSkBitmap2x() const {
+  // Possibly create and cache an intermediate ImageRepSkia.
+  return ToImageSkia()->bitmap2x();
+}
+
 const ImageSkia* Image::ToImageSkia() const {
   internal::ImageRep* rep = GetRepresentation(kImageRepSkia, false);
   if (!rep) {
     std::unique_ptr<internal::ImageRep> scoped_rep;
     switch (DefaultRepresentationType()) {
       case kImageRepPNG: {
         internal::ImageRepPNG* png_rep =
             GetRepresentation(kImageRepPNG, true)->AsImageRepPNG();
         scoped_rep.reset(new internal::ImageRepSkia(
             internal::ImageSkiaFromPNG(png_rep->image_reps())));
@@ skipping 151 matching lines @@
   image_png_reps.push_back(ImagePNGRep(png_bytes, 1.0f));
   AddRepresentation(
       base::WrapUnique(new internal::ImageRepPNG(image_png_reps)));
   return png_bytes;
 }
 
 SkBitmap Image::AsBitmap() const {
   return IsEmpty() ? SkBitmap() : *ToSkBitmap();
 }
 
+SkBitmap Image::AsBitmap2x() const {
+  return IsEmpty() ? SkBitmap() : *ToSkBitmap2x();
+}
+
 ImageSkia Image::AsImageSkia() const {
   return IsEmpty() ? ImageSkia() : *ToImageSkia();
 }
 
 #if defined(OS_MACOSX) && !defined(OS_IOS)
 NSImage* Image::AsNSImage() const {
   return IsEmpty() ? nil : ToNSImage();
 }
 #endif
 
@@ skipping 95 matching lines @@
       storage_->representations().insert(std::make_pair(type, std::move(rep)));
 
   // insert should not fail (implies that there was already a representation of
   // that type in the map).
   CHECK(result.second) << "type was already in map.";
 
   return result.first->second.get();
 }
 
 }  // namespace gfx