Move ReadFileToString to the base namespace.

chrome/common/extensions/extension_unittest.cc

 // Copyright (c) 2013 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 "base/file_util.h"
 #include "base/format_macros.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 119 matching lines @@
 
 
 // This test ensures that the mimetype sniffing code stays in sync with the
 // actual crx files that we test other parts of the system with.
 TEST(ExtensionTest, MimeTypeSniffing) {
   base::FilePath path;
   ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &path));
   path = path.AppendASCII("extensions").AppendASCII("good.crx");
 
   std::string data;
-  ASSERT_TRUE(file_util::ReadFileToString(path, &data));
+  ASSERT_TRUE(base::ReadFileToString(path, &data));
 
   std::string result;
   EXPECT_TRUE(net::SniffMimeType(data.c_str(),
                                  data.size(),
                                  GURL("http://www.example.com/foo.crx"),
                                  std::string(),
                                  &result));
   EXPECT_EQ(std::string(Extension::kMimeType), result);
 
   data.clear();
   result.clear();
   path = path.DirName().AppendASCII("bad_magic.crx");
-  ASSERT_TRUE(file_util::ReadFileToString(path, &data));
+  ASSERT_TRUE(base::ReadFileToString(path, &data));
   EXPECT_TRUE(net::SniffMimeType(data.c_str(),
                                  data.size(),
                                  GURL("http://www.example.com/foo.crx"),
                                  std::string(),
                                  &result));
   EXPECT_EQ("application/octet-stream", result);
 }
 
 TEST(ExtensionTest, WantsFileAccess) {
   scoped_refptr<Extension> extension;
@@ skipping 114 matching lines @@
 
   extension = LoadManifest("app", "manifest.json", Extension::FROM_BOOKMARK);
   EXPECT_TRUE(extension->from_bookmark());
 
   extension = LoadManifest("app", "manifest.json", Extension::NO_FLAGS);
   EXPECT_FALSE(extension->from_bookmark());
   EXPECT_FALSE(extension->from_webstore());
 }
 
 }  // namespace extensions