Move BrowserThread to content namespace.

chrome/browser/history/expire_history_backend_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 <string>
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
@@ skipping 17 matching lines @@
 #include "chrome/test/base/testing_profile.h"
 #include "chrome/tools/profiles/thumbnail-inl.h"
 #include "content/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/codec/jpeg_codec.h"
 
 using base::Time;
 using base::TimeDelta;
 using base::TimeTicks;
+using content::BrowserThread;
 
 // Filename constants.
 static const FilePath::CharType kHistoryFile[] = FILE_PATH_LITERAL("History");
 static const FilePath::CharType kArchivedHistoryFile[] =
     FILE_PATH_LITERAL("Archived History");
 static const FilePath::CharType kThumbnailFile[] =
     FILE_PATH_LITERAL("Thumbnails");
 
 // The test must be in the history namespace for the gtest forward declarations
 // to work. It also eliminates a bunch of ugly "history::".
@@ skipping 866 matching lines @@
   main_db_->GetVisitsForURL(url_id, &archived_visits);
   EXPECT_EQ(0U, archived_visits.size());
 }
 
 // TODO(brettw) add some visits with no URL to make sure everything is updated
 // properly. Have the visits also refer to nonexistent FTS rows.
 //
 // Maybe also refer to invalid favicons.
 
 }  // namespace history