Deprecate media_task_runner() from FileSystemTaskRunners

content/browser/fileapi/browser_file_system_helper.cc

Index: content/browser/fileapi/browser_file_system_helper.cc
diff --git a/content/browser/fileapi/browser_file_system_helper.cc b/content/browser/fileapi/browser_file_system_helper.cc
index 9e995f4c7fbd4170ded18e150d404cd2b0328827..47c0d35e9718318894bdb34f9a2b11acaf0196e8 100644
--- a/content/browser/fileapi/browser_file_system_helper.cc
+++ b/content/browser/fileapi/browser_file_system_helper.cc
@@ -52,15 +52,10 @@ scoped_refptr<fileapi::FileSystemContext> CreateFileSystemContext(
     fileapi::ExternalMountPoints* external_mount_points,
     quota::SpecialStoragePolicy* special_storage_policy,
     quota::QuotaManagerProxy* quota_manager_proxy) {
-  base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
-  base::SequencedWorkerPool::SequenceToken media_sequence_token =
-      pool->GetNamedSequenceToken(fileapi::kMediaTaskRunnerName);
-
   scoped_ptr<fileapi::FileSystemTaskRunners> task_runners(
       new fileapi::FileSystemTaskRunners(
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO),
-          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE),
-          pool->GetSequencedTaskRunner(media_sequence_token)));
+          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE)));
 
   // Setting up additional mount point providers.
   ScopedVector<fileapi::FileSystemMountPointProvider> additional_providers;