| Index: components/image_fetcher/image_data_fetcher.cc | 
| diff --git a/components/image_fetcher/image_data_fetcher.cc b/components/image_fetcher/image_data_fetcher.cc | 
| index 708bf3affda5e8027eccded578519c39d67a2ed2..e82c36751dfec9d43909a5a98fca1e5af81d25f6 100644 | 
| --- a/components/image_fetcher/image_data_fetcher.cc | 
| +++ b/components/image_fetcher/image_data_fetcher.cc | 
| @@ -46,16 +46,28 @@ void ImageDataFetcher::SetDataUseServiceName( | 
| } | 
|  | 
| void ImageDataFetcher::FetchImageData( | 
| -    const GURL& url, const ImageDataFetcherCallback& callback) { | 
| -  std::unique_ptr<net::URLFetcher> url_fetcher = | 
| -      net::URLFetcher::Create( | 
| -          next_url_fetcher_id_++, url, net::URLFetcher::GET, this); | 
| +    const GURL& image_url, | 
| +    const ImageDataFetcherCallback& callback) { | 
| +  FetchImageData( | 
| +      image_url, callback, /*referrer=*/std::string(), | 
| +      net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE); | 
| +} | 
| + | 
| +void ImageDataFetcher::FetchImageData( | 
| +    const GURL& image_url, | 
| +    const ImageDataFetcherCallback& callback, | 
| +    const std::string& referrer, | 
| +    net::URLRequest::ReferrerPolicy referrer_policy) { | 
| +  std::unique_ptr<net::URLFetcher> url_fetcher = net::URLFetcher::Create( | 
| +      next_url_fetcher_id_++, image_url, net::URLFetcher::GET, this); | 
|  | 
| DataUseUserData::AttachToFetcher(url_fetcher.get(), data_use_service_name_); | 
|  | 
| std::unique_ptr<ImageDataFetcherRequest> request( | 
| new ImageDataFetcherRequest(callback, std::move(url_fetcher))); | 
| request->url_fetcher->SetRequestContext(url_request_context_getter_.get()); | 
| +  request->url_fetcher->SetReferrer(referrer); | 
| +  request->url_fetcher->SetReferrerPolicy(referrer_policy); | 
| request->url_fetcher->Start(); | 
|  | 
| pending_requests_[request->url_fetcher.get()] = std::move(request); | 
|  |