Move ReadFileToString to the base namespace.

chrome/browser/extensions/component_loader_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 "chrome/browser/extensions/component_loader.h"
 
 #include <string>
 
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 70 matching lines @@
   }
 
   virtual void SetUp() OVERRIDE {
     extension_path_ =
         GetBasePath().AppendASCII("good")
                      .AppendASCII("Extensions")
                      .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
                      .AppendASCII("1.0.0.0");
 
     // Read in the extension manifest.
-    ASSERT_TRUE(file_util::ReadFileToString(
+    ASSERT_TRUE(base::ReadFileToString(
         extension_path_.Append(kManifestFilename),
         &manifest_contents_));
 
     // Register the local state prefs.
 #if defined(OS_CHROMEOS)
     local_state_.registry()->RegisterBooleanPref(
         prefs::kSpokenFeedbackEnabled, false);
 #endif
   }
 
@@ skipping 159 matching lines @@
   component_loader_.AddOrReplace(known_extension);
   EXPECT_EQ(default_count + 1, extension_service_.extensions()->size());
   EXPECT_EQ(1u, extension_service_.unloaded_count());
 
   // Add an invalid component extension.
   std::string extension_id = component_loader_.AddOrReplace(invalid_extension);
   EXPECT_TRUE(extension_id.empty());
 }
 
 }  // namespace extensions