Don't treat |is_directory| mismatch as an error in entry conversion in files.app.

chrome/browser/chromeos/extensions/file_manager/private_api_file_system.cc

 // Copyright 2013 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/chromeos/extensions/file_manager/private_api_file_system.h"
 
 #include <sys/statvfs.h>
 
 #include "base/posix/eintr_wrapper.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 308 matching lines @@
 
 void FileBrowserPrivateRequestFileSystemFunction::OnEntryDefinition(
     const EntryDefinition& entry_definition) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (entry_definition.error != base::File::FILE_OK) {
     DidFail(entry_definition.error);
     return;
   }
 
+  if (!entry_definition.is_directory) {
+    DidFail(base::File::FILE_ERROR_NOT_A_DIRECTORY);
+    return;
+  }
+
   base::DictionaryValue* dict = new base::DictionaryValue();
   SetResult(dict);
   dict->SetString("name", entry_definition.file_system_name);
   dict->SetString("root_url", entry_definition.file_system_root_url);
   dict->SetInteger("error", drive::FILE_ERROR_OK);
   SendResponse(true);
 }
 
 void FileWatchFunctionBase::Respond(bool success) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
@@ skipping 322 matching lines @@
         "/" + entry_definition_list->at(i).full_path.AsUTF8Unsafe();
     entry->file_is_directory = entry_definition_list->at(i).is_directory;
     entries.push_back(entry);
   }
 
   results_ = extensions::api::file_browser_private_internal::
       ResolveIsolatedEntries::Results::Create(entries);
   SendResponse(true);
 }
 }  // namespace extensions