Make MediaFileUtil run on thread pool.

webkit/fileapi/file_system_quota_client_unittest.cc

Index: webkit/fileapi/file_system_quota_client_unittest.cc
diff --git a/webkit/fileapi/file_system_quota_client_unittest.cc b/webkit/fileapi/file_system_quota_client_unittest.cc
index 0e643d66391173c646b691b74c446d08438b9747..ee91037a42a3076a8fc509fcbd6095ca1ba5eef9 100644
--- a/webkit/fileapi/file_system_quota_client_unittest.cc
+++ b/webkit/fileapi/file_system_quota_client_unittest.cc
@@ -14,6 +14,7 @@
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_operation_context.h"
 #include "webkit/fileapi/file_system_quota_client.h"
+#include "webkit/fileapi/file_system_task_runners.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/file_system_usage_cache.h"
 #include "webkit/fileapi/file_system_util.h"
@@ -47,8 +48,7 @@ class FileSystemQuotaClientTest : public testing::Test {
     ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
     file_system_context_ =
         new FileSystemContext(
-            base::MessageLoopProxy::current(),
-            base::MessageLoopProxy::current(),
+            make_scoped_ptr(new FileSystemTaskRunners()),
             NULL, NULL,
             data_dir_.path(),
             CreateDisallowFileAccessOptions());