Move Rename functionality from DownloadFileManager to DownloadFileImple.

content/browser/download/download_file_manager.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/download/download_file_manager.h"
 
 #include <set>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 177 matching lines @@
 // Actions from the UI thread and run on the download thread
 
 void DownloadFileManager::RenameDownloadFile(
     DownloadId global_id,
     const FilePath& full_path,
     bool overwrite_existing_file,
     const RenameCompletionCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   DownloadFile* download_file = GetDownloadFile(global_id);
   if (!download_file) {
-    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                            base::Bind(callback, FilePath()));
+    BrowserThread::PostTask(
+        BrowserThread::UI, FROM_HERE,
+        base::Bind(callback, content::DOWNLOAD_INTERRUPT_REASON_FILE_FAILED,
+                   FilePath()));
     return;
   }
 
-  FilePath new_path(full_path);
-  if (!overwrite_existing_file) {
-    // Make the file unique if requested.
-    int uniquifier =
-        file_util::GetUniquePathNumber(new_path, FILE_PATH_LITERAL(""));
-    if (uniquifier > 0) {
-      new_path = new_path.InsertBeforeExtensionASCII(
-          StringPrintf(" (%d)", uniquifier));
-    }
-  }
-
-  // Do the actual rename
-  content::DownloadInterruptReason rename_error =
-      download_file->Rename(new_path);
-  if (content::DOWNLOAD_INTERRUPT_REASON_NONE != rename_error) {
-    DownloadManager* download_manager = download_file->GetDownloadManager();
-    DCHECK(download_manager);
-
-    BrowserThread::PostTask(
-        BrowserThread::UI, FROM_HERE,
-        base::Bind(&DownloadManager::OnDownloadInterrupted,
-                   download_manager,
-                   global_id.local(),
-                   download_file->BytesSoFar(),
-                   download_file->GetHashState(),
-                   rename_error));
-
-    new_path.clear();
-  }
-  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                          base::Bind(callback, new_path));
+  download_file->Rename(full_path, overwrite_existing_file, callback);
 }
 
 int DownloadFileManager::NumberOfActiveDownloads() const {
   return downloads_.size();
 }
 
 void DownloadFileManager::EraseDownload(DownloadId global_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 
   if (!ContainsKey(downloads_, global_id))
     return;
 
   DownloadFile* download_file = downloads_[global_id];
 
   VLOG(20) << " " << __FUNCTION__ << "()"
            << " id = " << global_id
            << " download_file = " << download_file->DebugString();
 
   downloads_.erase(global_id);
 
   delete download_file;
 }