Move ReadFileToString to the base namespace.

net/url_request/url_fetcher_impl_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 "net/url_request/url_fetcher_impl.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 537 matching lines @@
   fetcher_->SetUploadFilePath("application/x-www-form-urlencoded",
                               path_,
                               range_offset_,
                               range_length_,
                               base::MessageLoopProxy::current());
   fetcher_->Start();
 }
 
 void URLFetcherPostFileTest::OnURLFetchComplete(const URLFetcher* source) {
   std::string expected;
-  ASSERT_TRUE(file_util::ReadFileToString(path_, &expected));
+  ASSERT_TRUE(base::ReadFileToString(path_, &expected));
   ASSERT_LE(range_offset_, expected.size());
   uint64 expected_size =
       std::min(range_length_, expected.size() - range_offset_);
 
   std::string data;
   EXPECT_TRUE(source->GetResponseAsString(&data));
   EXPECT_EQ(expected.substr(range_offset_, expected_size), data);
   URLFetcherTest::OnURLFetchComplete(source);
 }
 
@@ skipping 963 matching lines @@
 
     base::MessageLoop::current()->RunUntilIdle();
     ASSERT_EQ(kTake[i], base::PathExists(file_path_)) <<
         "FilePath: " << file_path_.value();
   }
 }
 
 }  // namespace
 
 }  // namespace net