Make callers of CommandLine use it via the base:: namespace.

chrome/browser/chrome_process_singleton_win_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 "chrome/browser/chrome_process_singleton.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 bool ServerCallback(int* callback_count,
-                    const CommandLine& command_line,
+                    const base::CommandLine& command_line,
                     const base::FilePath& current_directory) {
   ++(*callback_count);
   return true;
 }
 
-bool ClientCallback(const CommandLine& command_line,
+bool ClientCallback(const base::CommandLine& command_line,
                     const base::FilePath& current_directory) {
   ADD_FAILURE();
   return false;
 }
 
 }  // namespace
 
 TEST(ChromeProcessSingletonTest, Basic) {
   base::ScopedTempDir profile_dir;
   ASSERT_TRUE(profile_dir.CreateUniqueTempDir());
@@ skipping 88 matching lines @@
   // The notification sent while a modal dialog was present was silently
   // dropped.
   ASSERT_EQ(0, callback_count);
 
   // But now that the active modal dialog is NULL notifications will be handled.
   result = ps2.NotifyOtherProcessOrCreate();
   ASSERT_EQ(ProcessSingleton::PROCESS_NOTIFIED, result);
   ASSERT_EQ(1, callback_count);
 }
 #endif  // defined(OS_WIN) && !defined(USE_AURA)