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

chrome/browser/extensions/location_bar_controller_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 <string>
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/extensions/active_script_controller.h"
@@ skipping 28 matching lines @@
     active_script_override_.reset(new FeatureSwitch::ScopedOverride(
         FeatureSwitch::scripts_require_action(), true));
 
     ChromeRenderViewHostTestHarness::SetUp();
 #if defined OS_CHROMEOS
   test_user_manager_.reset(new chromeos::ScopedTestUserManager());
 #endif
     TabHelper::CreateForWebContents(web_contents());
     // Create an ExtensionService so the LocationBarController can find its
     // extensions.
-    CommandLine command_line(CommandLine::NO_PROGRAM);
+    base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
     Profile* profile =
         Profile::FromBrowserContext(web_contents()->GetBrowserContext());
     extension_service_ = static_cast<TestExtensionSystem*>(
         ExtensionSystem::Get(profile))->CreateExtensionService(
             &command_line, base::FilePath(), false);
   }
 
   void TearDown() override {
 #if defined OS_CHROMEOS
     test_user_manager_.reset();
@@ skipping 128 matching lines @@
   NavigateAndCommit(GURL("http://www.yahoo.com"));
 
   EXPECT_EQ("Hello", page_action.GetTitle(tab_id()));
   EXPECT_EQ(GURL(), page_action.GetPopupUrl(tab_id()));
   EXPECT_FALSE(extension_action_api->ExtensionWantsToRun(extension,
                                                          web_contents()));
 }
 
 }  // namespace
 }  // namespace extensions