Fix Jumplist favicons to have high resolution in HDPI Windows displays

chrome/browser/win/jumplist.cc

Index: chrome/browser/win/jumplist.cc
diff --git a/chrome/browser/win/jumplist.cc b/chrome/browser/win/jumplist.cc
index 508093dfa290fa460552fa29d95bdf17c8b071eb..a84f4a717a34f2a597254b788c5564694a8b303d 100644
--- a/chrome/browser/win/jumplist.cc
+++ b/chrome/browser/win/jumplist.cc
@@ -41,6 +41,7 @@
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_source.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/display/win/screen_win.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/favicon_size.h"
 #include "ui/gfx/icon_util.h"
@@ -541,10 +542,16 @@ void JumpList::OnFaviconDataAvailable(
     base::AutoLock auto_lock(data->list_lock_);
     // Attach the received data to the ShellLinkItem object.
     // This data will be decoded by the RunUpdateOnFileThread method.
-    if (!image_result.image.IsEmpty()) {
-      if (!data->icon_urls_.empty() && data->icon_urls_.front().second.get())
+    if (!image_result.image.IsEmpty() && !data->icon_urls_.empty() &&
+        data->icon_urls_.front().second.get()) {
+      float scale = display::win::ScreenWin::GetLargestDeviceScaleFactor();
+      if (scale > 1.0) {
+        data->icon_urls_.front().second->set_icon_data(
+            image_result.image.AsBitmap2x());
+      } else {
         data->icon_urls_.front().second->set_icon_data(
             image_result.image.AsBitmap());
+      }
     }
 
     if (!data->icon_urls_.empty())