favor DCHECK_CURRENTLY_ON for better logs in components/

components/storage_monitor/media_storage_util.cc

 // Copyright 2014 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 "components/storage_monitor/media_storage_util.h"
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/files/file_util.h"
@@ skipping 37 matching lines @@
   for (StorageInfoList::const_iterator it = devices.begin();
        it != devices.end(); ++it) {
     if (it->device_id() == device_id
         && StorageInfo::IsRemovableDevice(device_id))
       return it->location();
   }
   return base::FilePath::StringType();
 }
 
 void FilterAttachedDevicesOnFileThread(MediaStorageUtil::DeviceIdSet* devices) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+  DCHECK_CURRENTLY_ON(BrowserThread::FILE);
   MediaStorageUtil::DeviceIdSet missing_devices;
 
   for (MediaStorageUtil::DeviceIdSet::const_iterator it = devices->begin();
        it != devices->end();
        ++it) {
     StorageInfo::Type type;
     std::string unique_id;
     if (!StorageInfo::CrackDeviceId(*it, &type, &unique_id)) {
       missing_devices.insert(*it);
       continue;
@@ skipping 172 matching lines @@
       StorageMonitor::GetInstance()->GetAllAvailableStorages();
   for (StorageInfoList::const_iterator it = devices.begin();
        it != devices.end(); ++it) {
     if (StorageInfo::IsRemovableDevice(id) && it->device_id() == id)
       return true;
   }
   return false;
 }
 
 }  // namespace storage_monitor