Move async_file_test_helper.* to content/public/test/

content/browser/fileapi/file_system_url_request_job_unittest.cc

Index: content/browser/fileapi/file_system_url_request_job_unittest.cc
diff --git a/content/browser/fileapi/file_system_url_request_job_unittest.cc b/content/browser/fileapi/file_system_url_request_job_unittest.cc
index 6fd36b716e1e008912e3f93fc6cac913d4a81e7d..7fe55f600053c56b08ee296d8e423f3a187a8501 100644
--- a/content/browser/fileapi/file_system_url_request_job_unittest.cc
+++ b/content/browser/fileapi/file_system_url_request_job_unittest.cc
@@ -20,6 +20,7 @@
 #include "base/strings/string_piece.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "content/public/test/async_file_test_helper.h"
 #include "content/public/test/test_file_system_context.h"
 #include "net/base/load_flags.h"
 #include "net/base/mime_util.h"
@@ -32,12 +33,11 @@
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "webkit/browser/fileapi/async_file_test_helper.h"
 #include "webkit/browser/fileapi/external_mount_points.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #include "webkit/browser/fileapi/file_system_file_util.h"
 
-using fileapi::AsyncFileTestHelper;
+using content::AsyncFileTestHelper;
 using fileapi::FileSystemContext;
 using fileapi::FileSystemURL;
 using fileapi::FileSystemURLRequestJob;