Convert some DCHECK to CHECK to find cases that download file is not

properly deleted


BUG=1028666

Change-Id: I59b60a897a5f2529d4e61d8632aebe421dbc71b3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1933738Reviewed-by: Xing Liu <xingliu@chromium.org>
Commit-Queue: Min Qin <qinmin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719294}

components/download/internal/common/download_item_impl.cc

@@ -446,7 +446,7 @@ DownloadItemImpl::~DownloadItemImpl() {
 
   // Should always have been nuked before now, at worst in
   // DownloadManager shutdown.
-  DCHECK(!download_file_);
+  CHECK(!download_file_);
   CHECK(!is_updating_observers_);
 
   for (auto& observer : observers_)
@@ -1447,7 +1447,7 @@ void DownloadItemImpl::Start(
     URLLoaderFactoryProvider::URLLoaderFactoryProviderPtr
         url_loader_factory_provider) {
   DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
-  DCHECK(!download_file_);
+  CHECK(!download_file_);
   DVLOG(20) << __func__ << "() this=" << DebugString(true);
   RecordDownloadCountWithSource(START_COUNT, download_source_);