Change access mode of disk devices when mounting based on config.

chromeos/disks/disk_mount_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 "chromeos/disks/disk_mount_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <set>
@@ skipping 50 matching lines @@
 
   // DiskMountManager override.
   void RemoveObserver(Observer* observer) override {
     observers_.RemoveObserver(observer);
   }
 
   // DiskMountManager override.
   void MountPath(const std::string& source_path,
                  const std::string& source_format,
                  const std::string& mount_label,
-                 MountType type) override {
+                 MountType type,
+                 MountAccessMode access_mode) override {
     // Hidden and non-existent devices should not be mounted.
     if (type == MOUNT_TYPE_DEVICE) {
       DiskMap::const_iterator it = disks_.find(source_path);
       if (it == disks_.end() || it->second->is_hidden()) {
         OnMountCompleted(MountEntry(MOUNT_ERROR_INTERNAL, source_path, type,
                                     ""));
         return;
       }
     }
     cros_disks_client_->Mount(
-        source_path, source_format, mount_label, MOUNT_ACCESS_MODE_READ_WRITE,
+        source_path, source_format, mount_label, access_mode,
         // When succeeds, OnMountCompleted will be called by
         // "MountCompleted" signal instead.
         base::Bind(&base::DoNothing),
         base::Bind(&DiskMountManagerImpl::OnMountCompleted,
                    weak_ptr_factory_.GetWeakPtr(),
                    MountEntry(MOUNT_ERROR_INTERNAL, source_path, type, "")));
   }
 
   // DiskMountManager override.
   void UnmountPath(const std::string& mount_path,
@@ skipping 663 matching lines @@
   VLOG(1) << "DiskMountManager Shutdown completed";
 }
 
 // static
 DiskMountManager* DiskMountManager::GetInstance() {
   return g_disk_mount_manager;
 }
 
 }  // namespace disks
 }  // namespace chromeos