Set desired_image_size when decoding images for NTP Tile icons.

components/ntp_tiles/icon_cacher_impl.cc

Index: components/ntp_tiles/icon_cacher_impl.cc
diff --git a/components/ntp_tiles/icon_cacher_impl.cc b/components/ntp_tiles/icon_cacher_impl.cc
index cb957ea010e58bcd9e70444e6dc578aed426c45e..c5c85acdd0ec3b9e3a022d4304ac27ac36f20593 100644
--- a/components/ntp_tiles/icon_cacher_impl.cc
+++ b/components/ntp_tiles/icon_cacher_impl.cc
@@ -11,6 +11,7 @@
 #include "components/favicon_base/favicon_types.h"
 #include "components/favicon_base/favicon_util.h"
 #include "components/image_fetcher/image_fetcher.h"
+#include "ui/gfx/geometry/size.h"
 #include "ui/gfx/image/image.h"
 #include "url/gurl.h"
 
@@ -37,6 +38,8 @@ IconCacherImpl::IconCacherImpl(
       image_fetcher_(std::move(image_fetcher)) {
   image_fetcher_->SetDataUseServiceName(
       data_use_measurement::DataUseUserData::NTP_TILES);
+  // For images with multiple frames, prefer one of size 128x128px.
+  image_fetcher_->SetDesiredImageFrameSize(gfx::Size(128, 128));
 }
 
 IconCacherImpl::~IconCacherImpl() = default;