Use a direct include of the message_loop header in webkit/, part 1.

webkit/browser/database/database_tracker_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 "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/platform_file.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "net/base/net_errors.h"
 #include "net/base/test_completion_callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/sqlite/sqlite3.h"
 #include "webkit/browser/database/database_tracker.h"
 #include "webkit/browser/quota/mock_special_storage_policy.h"
@@ skipping 839 matching lines @@
 
 TEST(DatabaseTrackerTest, EmptyDatabaseNameIsValid) {
   DatabaseTracker_TestHelper_Test::EmptyDatabaseNameIsValid();
 }
 
 TEST(DatabaseTrackerTest, HandleSqliteError) {
   DatabaseTracker_TestHelper_Test::HandleSqliteError();
 }
 
 }  // namespace webkit_database