Add |SetImageDownloadLimit| to ImageFetcher to limit downloaded bytes

components/image_fetcher/core/image_fetcher_impl.cc

Index: components/image_fetcher/core/image_fetcher_impl.cc
diff --git a/components/image_fetcher/core/image_fetcher_impl.cc b/components/image_fetcher/core/image_fetcher_impl.cc
index 82310ecc0bce646b231a0f6abe54d3203c102ec1..567928c9a6df05e2daadc47bbb5870fc235aa8f4 100644
--- a/components/image_fetcher/core/image_fetcher_impl.cc
+++ b/components/image_fetcher/core/image_fetcher_impl.cc
@@ -43,6 +43,11 @@ void ImageFetcherImpl::SetDesiredImageFrameSize(const gfx::Size& size) {
   desired_image_frame_size_ = size;
 }
 
+void ImageFetcherImpl::SetImageDownloadLimit(
+    base::Optional<int64_t> max_download_bytes) {
+  image_data_fetcher_->SetImageDownloadLimit(max_download_bytes);
+}
+
 void ImageFetcherImpl::StartOrQueueNetworkRequest(
     const std::string& id,
     const GURL& image_url,