Files.app: Remove getDriveFiles function from the private API.

chrome/browser/chromeos/extensions/file_manager/private_api_dialog.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_dialog.h"
 
 #include "chrome/browser/chromeos/extensions/file_manager/private_api_util.h"
 #include "chrome/browser/ui/views/select_file_dialog_extension.h"
 #include "chrome/common/extensions/api/file_manager_private.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 80 matching lines @@
           file_manager::util::NO_LOCAL_PATH_RESOLUTION,
       base::Bind(
           &FileManagerPrivateSelectFilesFunction::GetSelectedFileInfoResponse,
           this));
   return true;
 }
 
 void FileManagerPrivateSelectFilesFunction::GetSelectedFileInfoResponse(
     const std::vector<ui::SelectedFileInfo>& files) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  if (files.empty()) {
+    SendResponse(false);
+    return;
+  }
+
   SelectFileDialogExtension::OnMultiFilesSelected(GetFileDialogRoutingID(this),
                                                   files);
   SendResponse(true);
 }
 
 }  // namespace extensions