Move ReadFileToString to the base namespace.

webkit/browser/fileapi/local_file_stream_writer_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/browser/fileapi/local_file_stream_writer.h"
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/file_util.h"
@@ skipping 47 matching lines @@
         result = callback.WaitForResult();
       if (result <= 0)
         return result;
       drainable->DidConsume(result);
     }
     return net::OK;
   }
 
   std::string GetFileContent(const base::FilePath& path) {
     std::string content;
-    file_util::ReadFileToString(path, &content);
+    base::ReadFileToString(path, &content);
     return content;
   }
 
   base::FilePath CreateFileWithContent(const std::string& name,
                                  const std::string& data) {
     base::FilePath path = Path(name);
     file_util::WriteFile(path, data.c_str(), data.size());
     return path;
   }
 
@@ skipping 92 matching lines @@
   scoped_refptr<net::StringIOBuffer> buffer(new net::StringIOBuffer("xxx"));
   int result =
       writer->Write(buffer.get(), buffer->size(), base::Bind(&NeverCalled));
   ASSERT_EQ(net::ERR_IO_PENDING, result);
 
   net::TestCompletionCallback callback;
   writer->Cancel(callback.callback());
   int cancel_result = callback.WaitForResult();
   EXPECT_EQ(net::OK, cancel_result);
 }