Move async_file_test_helper.* to content/public/test/

content/browser/fileapi/copy_or_move_file_validator_unittest.cc

Index: content/browser/fileapi/copy_or_move_file_validator_unittest.cc
diff --git a/content/browser/fileapi/copy_or_move_file_validator_unittest.cc b/content/browser/fileapi/copy_or_move_file_validator_unittest.cc
index 750c4208024820b483266edf4002d0d935f3ae80..abba59aceb49af2206e565321c6777dce1af0862 100644
--- a/content/browser/fileapi/copy_or_move_file_validator_unittest.cc
+++ b/content/browser/fileapi/copy_or_move_file_validator_unittest.cc
@@ -7,10 +7,10 @@
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/run_loop.h"
+#include "content/public/test/async_file_test_helper.h"
 #include "content/public/test/test_file_system_backend.h"
 #include "content/public/test/test_file_system_context.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "webkit/browser/fileapi/async_file_test_helper.h"
 #include "webkit/browser/fileapi/copy_or_move_file_validator.h"
 #include "webkit/browser/fileapi/external_mount_points.h"
 #include "webkit/browser/fileapi/file_system_backend.h"
@@ -21,7 +21,7 @@
 #include "webkit/common/blob/shareable_file_reference.h"
 #include "webkit/common/fileapi/file_system_util.h"
 
-using fileapi::AsyncFileTestHelper;
+using content::AsyncFileTestHelper;
 using fileapi::CopyOrMoveFileValidator;
 using fileapi::CopyOrMoveFileValidatorFactory;
 using fileapi::FileSystemType;