Enables HiDPI favicon to be displayed in tab strip on CrOS

chrome/browser/favicon/favicon_tab_helper.cc

Index: chrome/browser/favicon/favicon_tab_helper.cc
diff --git a/chrome/browser/favicon/favicon_tab_helper.cc b/chrome/browser/favicon/favicon_tab_helper.cc
index 649527224d2320742a7ed224d7447cb3d0478778..7a02c29d077ab8e45f6a4dee54c7e070e66ea11b 100644
--- a/chrome/browser/favicon/favicon_tab_helper.cc
+++ b/chrome/browser/favicon/favicon_tab_helper.cc
@@ -198,11 +198,7 @@ void FaviconTabHelper::OnDidDownloadFavicon(
   // TODO: Possibly do bitmap selection in FaviconHandler, so that it can score
   // favicons better.
   std::vector<ui::ScaleFactor> scale_factors;
-#if defined(OS_MACOSX)
   scale_factors = ui::GetSupportedScaleFactors();
-#else
-  scale_factors.push_back(ui::SCALE_FACTOR_100P);  // TODO: Aura?
-#endif
   gfx::Image favicon(
       SelectFaviconFrames(bitmaps, scale_factors, requested_size));
   favicon_handler_->OnDidDownloadFavicon(id, image_url, errored, favicon);