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

chrome/browser/chromeos/policy/device_local_account_browsertest.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 <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "ash/shell.h"
@@ skipping 413 matching lines @@
     signing_key.reset();
     test_server_.RegisterClient(PolicyBuilder::kFakeToken,
                                 PolicyBuilder::kFakeDeviceId);
     ASSERT_TRUE(test_server_.Start());
 
     BrowserList::AddObserver(this);
 
     DevicePolicyCrosBrowserTest::SetUp();
   }
 
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  virtual void SetUpCommandLine(base::CommandLine* command_line) override {
     DevicePolicyCrosBrowserTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(chromeos::switches::kLoginManager);
     command_line->AppendSwitch(chromeos::switches::kForceLoginManagerInTests);
     command_line->AppendSwitchASCII(chromeos::switches::kLoginProfile, "user");
     command_line->AppendSwitchASCII(policy::switches::kDeviceManagementUrl,
                                     test_server_.GetServiceURL().spec());
   }
 
   virtual void SetUpInProcessBrowserTestFixture() override {
     DevicePolicyCrosBrowserTest::SetUpInProcessBrowserTestFixture();
 
     // Clear command-line arguments (but keep command-line switches) so the
     // startup pages policy takes effect.
-    CommandLine* command_line = CommandLine::ForCurrentProcess();
-    CommandLine::StringVector argv(command_line->argv());
+    base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+    base::CommandLine::StringVector argv(command_line->argv());
     argv.erase(argv.begin() + argv.size() - command_line->GetArgs().size(),
                argv.end());
     command_line->InitFromArgv(argv);
 
     InstallOwnerKey();
     MarkAsEnterpriseOwned();
 
     InitializePolicy();
   }
 
@@ skipping 1743 matching lines @@
   ASSERT_TRUE(content::ExecuteScript(contents_,
                                      "$('tos-accept-button').click();"));
 
   WaitForSessionStart();
 }
 
 INSTANTIATE_TEST_CASE_P(TermsOfServiceDownloadTestInstance,
                         TermsOfServiceDownloadTest, testing::Bool());
 
 }  // namespace policy