Move BrowserThread to content namespace.

chrome/browser/extensions/file_reader_unittest.cc

 // Copyright (c) 2011 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/callback.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "chrome/browser/extensions/file_reader.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_resource.h"
 #include "chrome/common/extensions/extension_test_util.h"
 #include "content/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using content::BrowserThread;
+
 namespace {
 
 class FileReaderTest : public testing::Test {
  public:
   FileReaderTest() : file_thread_(BrowserThread::FILE) {
     file_thread_.Start();
   }
  private:
   MessageLoop message_loop_;
   content::TestBrowserThread file_thread_;
@@ skipping 66 matching lines @@
   scoped_refptr<FileReader> file_reader(
       new FileReader(resource, receiver.NewCallback()));
   file_reader->Start();
 
   MessageLoop::current()->Run();
 
   EXPECT_FALSE(receiver.succeeded());
 }
 
 }  // namespace