Change {Obfuscated|Local}FileSystemFileUtil non-Singleton to take an underlying *FileUtil.

webkit/fileapi/file_system_operation_write_unittest.cc

Index: webkit/fileapi/file_system_operation_write_unittest.cc
diff --git a/webkit/fileapi/file_system_operation_write_unittest.cc b/webkit/fileapi/file_system_operation_write_unittest.cc
index b07985953722881fc43114c656c79ccf757a1529..6d33626a59f10683621373febee0a76210c162dd 100644
--- a/webkit/fileapi/file_system_operation_write_unittest.cc
+++ b/webkit/fileapi/file_system_operation_write_unittest.cc
@@ -29,6 +29,7 @@
 #include "webkit/fileapi/file_system_test_helper.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/local_file_system_file_util.h"
+#include "webkit/fileapi/quota_file_util.h"
 #include "webkit/quota/quota_manager.h"
 
 using quota::QuotaManager;
@@ -66,7 +67,9 @@ class MockQuotaManager : public QuotaManager {
 class FileSystemOperationWriteTest : public testing::Test {
  public:
   FileSystemOperationWriteTest()
-      : loop_(MessageLoop::TYPE_IO),
+      : local_file_util_(
+            new LocalFileSystemFileUtil(QuotaFileUtil::GetInstance())),
+        loop_(MessageLoop::TYPE_IO),
         status_(base::PLATFORM_FILE_OK),
         bytes_written_(0),
         complete_(false) {}
@@ -97,6 +100,7 @@ class FileSystemOperationWriteTest : public testing::Test {
     return test_helper_.GetURLForPath(path);
   }
 
+  scoped_ptr<LocalFileSystemFileUtil> local_file_util_;
   scoped_refptr<MockQuotaManager> quota_manager_;
   FileSystemTestOriginHelper test_helper_;
 
@@ -188,7 +192,7 @@ void FileSystemOperationWriteTest::SetUp() {
                      false /* incognito */,
                      false /* unlimited quota */,
                      quota_manager_->proxy(),
-                     LocalFileSystemFileUtil::GetInstance());
+                     local_file_util_.get());
   filesystem_dir_ = test_helper_.GetOriginRootPath();
 
   ASSERT_TRUE(file_util::CreateTemporaryFileInDir(filesystem_dir_, &file_));