Move Rename functionality from DownloadFileManager to DownloadFileImple.

content/browser/download/download_manager_impl.cc

Index: content/browser/download/download_manager_impl.cc
diff --git a/content/browser/download/download_manager_impl.cc b/content/browser/download/download_manager_impl.cc
index e0f441b949876d3d7db5aa3a5d29779ef988bc24..912f0f6b9994ad17b946d152df9905e7b6c6af2d 100644
--- a/content/browser/download/download_manager_impl.cc
+++ b/content/browser/download/download_manager_impl.cc
@@ -408,7 +408,7 @@ content::DownloadId DownloadManagerImpl::StartDownload(
 void DownloadManagerImpl::OnDownloadFileCreated(
     int32 download_id, content::DownloadInterruptReason reason) {
   if (reason != content::DOWNLOAD_INTERRUPT_REASON_NONE) {
-    OnDownloadInterrupted(download_id, 0, "", reason);
+    OnDownloadInterrupted(download_id, reason);
     // TODO(rdsmith): It makes no sense to continue along the
     // regular download path after we've gotten an error.  But it's
     // the way the code has historically worked, and this allows us
@@ -750,15 +750,12 @@ void DownloadManagerImpl::DownloadStopped(DownloadItem* download) {
 
 void DownloadManagerImpl::OnDownloadInterrupted(
     int32 download_id,
-    int64 size,
-    const std::string& hash_state,
     content::DownloadInterruptReason reason) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   DownloadItem* download = GetActiveDownload(download_id);
   if (!download)
     return;
-  download->UpdateProgress(size, 0, hash_state);
   download->Interrupt(reason);
 }