components/image_fetcher: Expose RequestMetadata from ImageFetcher

chrome/browser/chromeos/hats/hats_notification_controller.cc

Index: chrome/browser/chromeos/hats/hats_notification_controller.cc
diff --git a/chrome/browser/chromeos/hats/hats_notification_controller.cc b/chrome/browser/chromeos/hats/hats_notification_controller.cc
index 2fb3b74f4fb2d9157fd3b63e74ad3c09c0ee2853..7778407398a553344b1f2f144b7963807d83aba3 100644
--- a/chrome/browser/chromeos/hats/hats_notification_controller.cc
+++ b/chrome/browser/chromeos/hats/hats_notification_controller.cc
@@ -242,8 +242,10 @@ void HatsNotificationController::OnPortalDetectionCompleted(
                  weak_pointer_factory_.GetWeakPtr()));
 }
 
-void HatsNotificationController::OnImageFetched(const std::string& id,
-                                                const gfx::Image& image) {
+void HatsNotificationController::OnImageFetched(
+    const std::string& id,
+    const gfx::Image& image,
+    const image_fetcher::RequestMetadata& metadata) {
   DCHECK(id == kImageFetcher1xId || id == kImageFetcher2xId);
 
   completed_requests_++;