Implement CopyFileFromLocal of MTPDeviceAsyncDelegate.

chrome/browser/chromeos/file_manager/volume_manager.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/file_manager/volume_manager.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 643 matching lines @@
   for (int i = 2; mounted_volumes_.count(kMtpVolumeIdPrefix + label); ++i)
     label = base_name + base::StringPrintf(" (%d)", i);
 
   bool result =
       storage::ExternalMountPoints::GetSystemInstance()->RegisterFileSystem(
           fsid,
           storage::kFileSystemTypeDeviceMediaAsFileStorage,
           storage::FileSystemMountOption(),
           path);
   DCHECK(result);
+
+  // TODO(yawano) A variable to switch MTP write support. This variable should
+  // be false until MTP write operation is implemented and shipped.
+  bool write_supported = false;
+
   content::BrowserThread::PostTask(
-      content::BrowserThread::IO, FROM_HERE, base::Bind(
-          &MTPDeviceMapService::RegisterMTPFileSystem,
-          base::Unretained(MTPDeviceMapService::GetInstance()),
-          info.location(), fsid));
+      content::BrowserThread::IO, FROM_HERE,
+      base::Bind(&MTPDeviceMapService::RegisterMTPFileSystem,
+                 base::Unretained(MTPDeviceMapService::GetInstance()),
+                 info.location(), fsid, !write_supported /* read_only  */));
 
   VolumeInfo volume_info;
   volume_info.type = VOLUME_TYPE_MTP;
   volume_info.mount_path = path;
   volume_info.mount_condition = chromeos::disks::MOUNT_CONDITION_NONE;
   volume_info.is_parent = true;
-  volume_info.is_read_only = true;
+  volume_info.is_read_only = !write_supported;
   volume_info.volume_id = kMtpVolumeIdPrefix + label;
   volume_info.volume_label = label;
   volume_info.source_path = path;
   volume_info.device_type = chromeos::DEVICE_TYPE_MOBILE;
   DoMountEvent(chromeos::MOUNT_ERROR_NONE, volume_info);
 }
 
 void VolumeManager::OnRemovableStorageDetached(
     const storage_monitor::StorageInfo& info) {
   if (!storage_monitor::StorageInfo::IsMTPDevice(info.device_id()))
@@ skipping 124 matching lines @@
     return;
   if (error_code == chromeos::MOUNT_ERROR_NONE)
     mounted_volumes_.erase(volume_info.volume_id);
 
   FOR_EACH_OBSERVER(VolumeManagerObserver,
                     observers_,
                     OnVolumeUnmounted(error_code, volume_info));
 }
 
 }  // namespace file_manager