Move common file path related methods between chrome & content to file_util. I reduced the 4 meth...

chrome/browser/download/chrome_download_manager_delegate.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 "chrome/browser/download/chrome_download_manager_delegate.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/file_util.h"
@@ skipping 508 matching lines @@
     state.suggested_path = path;
   } else {
     // Do not add the path uniquifier if we are saving to a specific path as in
     // the drag-out case.
     if (state.force_file_name.empty()) {
       state.path_uniquifier = download_util::GetUniquePathNumberWithCrDownload(
           state.suggested_path);
     }
     // We know the final path, build it if necessary.
     if (state.path_uniquifier > 0) {
-      DownloadFile::AppendNumberToPath(&(state.suggested_path),
-                                       state.path_uniquifier);
+      file_util::AppendNumberToPath(&(state.suggested_path),
+                                    state.path_uniquifier);
       // Setting path_uniquifier to 0 to make sure we don't try to unique it
       // later on.
       state.path_uniquifier = 0;
     } else if (state.path_uniquifier == -1) {
       // We failed to find a unique path.  We have to prompt the user.
       VLOG(1) << "Unable to find a unique path for suggested path \""
               << state.suggested_path.value() << "\"";
       state.prompt_user_for_save_location = true;
     }
   }
@@ skipping 65 matching lines @@
     int32 download_id, int64 db_handle) {
   // It's not immediately obvious, but HistoryBackend::CreateDownload() can
   // call this function with an invalid |db_handle|. For instance, this can
   // happen when the history database is offline. We cannot have multiple
   // DownloadItems with the same invalid db_handle, so we need to assign a
   // unique |db_handle| here.
   if (db_handle == DownloadItem::kUninitializedHandle)
     db_handle = download_history_->GetNextFakeDbHandle();
   download_manager_->OnItemAddedToPersistentStore(download_id, db_handle);
 }