Remove call to IsRunningSequenceOnCurrentThread() in media_file_system_backend.cc

chrome/browser/media_galleries/fileapi/safe_picasa_album_table_reader.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/media_galleries/fileapi/safe_picasa_album_table_reader.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "chrome/browser/media_galleries/fileapi/media_file_system_backend.h"
 #include "chrome/common/chrome_utility_messages.h"
 #include "chrome/common/extensions/chrome_utility_extensions_messages.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_data.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using content::BrowserThread;
 
 namespace picasa {
 
 SafePicasaAlbumTableReader::SafePicasaAlbumTableReader(
     AlbumTableFiles album_table_files)
     : album_table_files_(std::move(album_table_files)),
       parser_state_(INITIAL_STATE) {
   // TODO(tommycli): Add DCHECK to make sure |album_table_files| are all
   // opened read-only once security adds ability to check PlatformFiles.
-  DCHECK(MediaFileSystemBackend::CurrentlyOnMediaTaskRunnerThread());
+  MediaFileSystemBackend::AssertCurrentlyOnMediaSequence();
 }
 
 void SafePicasaAlbumTableReader::Start(const ParserCallback& callback) {
-  DCHECK(MediaFileSystemBackend::CurrentlyOnMediaTaskRunnerThread());
+  MediaFileSystemBackend::AssertCurrentlyOnMediaSequence();
   DCHECK(!callback.is_null());
 
   callback_ = callback;
 
   // Don't bother spawning process if any of the files are invalid.
   if (!album_table_files_.indicator_file.IsValid() ||
       !album_table_files_.category_file.IsValid() ||
       !album_table_files_.date_file.IsValid() ||
       !album_table_files_.filename_file.IsValid() ||
       !album_table_files_.name_file.IsValid() ||
@@ skipping 73 matching lines @@
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(SafePicasaAlbumTableReader, message)
     IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ParsePicasaPMPDatabase_Finished,
                         OnParsePicasaPMPDatabaseFinished)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 }  // namespace picasa