Add callback to DiskMountManager::UnmountPath

chrome/browser/chromeos/extensions/file_browser_private_api.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/chromeos/extensions/file_browser_private_api.h"
 
 #include <sys/stat.h>
 #include <sys/statvfs.h>
 #include <sys/types.h>
 #include <utime.h>
@@ skipping 1639 matching lines @@
 }
 
 void RemoveMountFunction::GetSelectedFileInfoResponse(
     const SelectedFileInfoList& files) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (files.size() != 1) {
     SendResponse(false);
     return;
   }
-  DiskMountManager::GetInstance()->UnmountPath(files[0].local_path.value(),
-                                               chromeos::UNMOUNT_OPTIONS_NONE);
+
+  // TODO(tbarzic): Send response when callback is received, it would make more
+  // sense than remembering issued unmount requests in file manager and showing
+  // errors for them when MountCompleted event is received.
+  DiskMountManager::GetInstance()->UnmountPath(
+      files[0].local_path.value(),
+      chromeos::UNMOUNT_OPTIONS_NONE,
+      DiskMountManager::UnmountPathCallback());
   SendResponse(true);
 }
 
 GetMountPointsFunction::GetMountPointsFunction() {
 }
 
 GetMountPointsFunction::~GetMountPointsFunction() {
 }
 
 bool GetMountPointsFunction::RunImpl() {
@@ skipping 1668 matching lines @@
 OpenNewWindowFunction::OpenNewWindowFunction() {}
 
 OpenNewWindowFunction::~OpenNewWindowFunction() {}
 
 bool OpenNewWindowFunction::RunImpl() {
   std::string url;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &url));
   file_manager_util::OpenNewWindow(profile_, GURL(url));
   return true;
 }