Discard FileAPI pending operations on shutdown

content/browser/fileapi/browser_file_system_helper.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 "content/browser/fileapi/browser_file_system_helper.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 37 matching lines @@
 }  // namespace
 
 scoped_refptr<fileapi::FileSystemContext> CreateFileSystemContext(
     BrowserContext* browser_context,
     const base::FilePath& profile_path,
     bool is_incognito,
     quota::QuotaManagerProxy* quota_manager_proxy) {
 
   base::SequencedWorkerPool* pool = content::BrowserThread::GetBlockingPool();
   scoped_refptr<base::SequencedTaskRunner> file_task_runner =
-      pool->GetSequencedTaskRunner(pool->GetNamedSequenceToken("FileAPI"));
+      pool->GetSequencedTaskRunnerWithShutdownBehavior(
+          pool->GetNamedSequenceToken("FileAPI"),
+          base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
 
   // Setting up additional filesystem backends.
   ScopedVector<fileapi::FileSystemBackend> additional_backends;
   GetContentClient()->browser()->GetAdditionalFileSystemBackends(
       browser_context,
       profile_path,
       &additional_backends);
 
   scoped_refptr<fileapi::FileSystemContext> file_system_context =
       new fileapi::FileSystemContext(
@@ skipping 71 matching lines @@
   context->operation_runner()->SyncGetPlatformPath(url, platform_path);
 
   // The path is to be attached to URLLoader so we grant read permission
   // for the file. (We need to check first because a parent directory may
   // already have the permissions and we don't need to grant it to the file.)
   if (!policy->CanReadFile(process_id, *platform_path))
     policy->GrantReadFile(process_id, *platform_path);
 }
 
 }  // namespace content