Move async_file_test_helper.* to content/public/test/

content/browser/fileapi/file_writer_delegate_unittest.cc

Index: content/browser/fileapi/file_writer_delegate_unittest.cc
diff --git a/content/browser/fileapi/file_writer_delegate_unittest.cc b/content/browser/fileapi/file_writer_delegate_unittest.cc
index 2a02f8f7460d62415532df22d7d9756822ebb6ef..88700d27acdad8f512647363f6277b96048ff1fa 100644
--- a/content/browser/fileapi/file_writer_delegate_unittest.cc
+++ b/content/browser/fileapi/file_writer_delegate_unittest.cc
@@ -11,6 +11,7 @@
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
+#include "content/public/test/async_file_test_helper.h"
 #include "content/public/test/test_file_system_context.h"
 #include "net/base/io_buffer.h"
 #include "net/base/request_priority.h"
@@ -20,13 +21,12 @@
 #include "net/url_request/url_request_status.h"
 #include "testing/platform_test.h"
 #include "url/gurl.h"
-#include "webkit/browser/fileapi/async_file_test_helper.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #include "webkit/browser/fileapi/file_system_quota_util.h"
 #include "webkit/browser/fileapi/file_writer_delegate.h"
 #include "webkit/browser/fileapi/sandbox_file_stream_writer.h"
 
-using fileapi::AsyncFileTestHelper;
+using content::AsyncFileTestHelper;
 using fileapi::FileSystemURL;
 using fileapi::FileWriterDelegate;