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

chrome/browser/extensions/extension_browsertest.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/extension_browsertest.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 98 matching lines @@
     }
   }
   return NULL;
 }
 
 void ExtensionBrowserTest::SetUp() {
   test_extension_cache_.reset(new extensions::ExtensionCacheFake());
   InProcessBrowserTest::SetUp();
 }
 
-void ExtensionBrowserTest::SetUpCommandLine(CommandLine* command_line) {
+void ExtensionBrowserTest::SetUpCommandLine(base::CommandLine* command_line) {
   PathService::Get(chrome::DIR_TEST_DATA, &test_data_dir_);
   test_data_dir_ = test_data_dir_.AppendASCII("extensions");
   observer_.reset(new ExtensionTestNotificationObserver(browser()));
 
 #if defined(OS_CHROMEOS)
   if (set_chromeos_user_) {
     // This makes sure that we create the Default profile first, with no
     // ExtensionService and then the real profile with one, as we do when
     // running on chromeos.
     command_line->AppendSwitchASCII(chromeos::switches::kLoginUser,
@@ skipping 531 matching lines @@
   return extensions::browsertest_util::ExecuteScriptInBackgroundPage(
       profile(), extension_id, script);
 }
 
 bool ExtensionBrowserTest::ExecuteScriptInBackgroundPageNoWait(
     const std::string& extension_id,
     const std::string& script) {
   return extensions::browsertest_util::ExecuteScriptInBackgroundPageNoWait(
       profile(), extension_id, script);
 }