Reset extension downloader when updating external extension cache

chrome/browser/chromeos/extensions/external_cache.cc

Index: chrome/browser/chromeos/extensions/external_cache.cc
diff --git a/chrome/browser/chromeos/extensions/external_cache.cc b/chrome/browser/chromeos/extensions/external_cache.cc
index ec39c237d93d38ee99ba68bef93765da7546e70b..dabb3b6b40004cfac6ebc22948e5a76259e4d442 100644
--- a/chrome/browser/chromeos/extensions/external_cache.cc
+++ b/chrome/browser/chromeos/extensions/external_cache.cc
@@ -229,7 +229,7 @@ void ExternalCache::CheckCache() {
     return;
 
   // If request_context_ is missing we can't download anything.
-  if (!downloader_ && request_context_.get()) {
+  if (request_context_.get()) {
     downloader_ = ChromeExtensionDownloaderFactory::CreateForRequestContext(
         request_context_.get(), this);
   }